The Mixture Chemistry Soil-pasture and Qualitative Brachiariagrasses Priors Results in the Largest Differences Between
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Brazilian Journal of Development 8437 ISSN: 2525-8761 The Mixture Chemistry Soil-pasture and Qualitative Brachiariagrasses Priors Results in the Largest Differences Between Systems Estrutura química em solo e resultados qualitativos para Brachiariagrass em diferentes sistemas DOI:10.34117/bjdv7n1-572 Recebimento dos originais: 21/12/2020 Aceitação para publicação: 21/01/2021 Aluisio Fernando Alves Ferreira Especialista em Zootecnia Universidade Federal de Goiás - UFG, Departamento Zootecnia, Campus Universitário Samambaia, Goiânia, Goiás – Brazil – CEP 74690-900 - ferreira.consult2020@icloud.com https://orcid.org/0000-0003-0213-438X Cristian Ephifanio Toledo Doutor em Engenharia Agricola - Endereço: Universidade Estadual de Goiás, Instituto Acadêmico de Ciências Agrárias e Sustentabilidade, Campus Oeste - Unidade Palmeiras de Goiás, Goiás – Brazil – CEP: 76190-000 cristian.toledo@ueg.br https://orcid.org/0000-0003-3312-6980 João Carlos Mohn Nogueira Mestre em Produção Vegetal - Endereço: Universidade Estadual de Goiás, Instituto Acadêmico de Ciências Agrárias e Sustentabilidade, Campus Oeste - Unidade Palmeiras de Goiás, Goiás – Brazil – CEP: 76190-000 jcmnogueira1@gmail.com https://orcid.org/0000-0001-5597-7386 Alexandre de Amorim Camargo Mestre em Engenharia Agricola - Endereço: Universidade Estadual de Goiás, Instituto Acadêmico de Ciências Agrárias e Sustentabilidade, Campus Oeste - Unidade Palmeiras de Goiás, Goiás – Brazil – CEP: 76190-000 cmrgo.alexandre@gmail.com https://orcid.org/0000-0003-3634-3622 Geovana de Freitas Alves Mestre em Engenharia Agricola - Endereço: Universidade Estadual de Goiás, Instituto Acadêmico de Ciências Agrárias e Sustentabilidade, Campus Oeste - Unidade Palmeiras de Goiás, Goiás – Brazil – CEP: 76190-000 geo.freitass12@gmail.com https://orcid.org/0000-0003-0144-9633 Brazilian Journal of Development, Curitiba, v.7, n.1, p.8437-8450 Jan. 2021
Brazilian Journal of Development 8438 ISSN: 2525-8761 Fernando Couto de Araujo Doutorando em Produção Animal - Endereço: Universidade Estadual de Goiás, Instituto Acadêmico de Ciências Agrárias e Sustentabilidade, Campus Oeste - Unidade Palmeiras de Goiás, Goiás – Brazil – CEP: 76190-000 fernandoagrocouto@hotmail.com https://orcid.org/0000-0002-4455-4596 ABSTRACT Objectives were the mixtures chemistry soil-pasture and qualitative Brachiariagrasses priors results in the largest differences between systems. Evaluations compost in systems are grassland and formed per Europhyla urograndis plants in spaced by 4 (3 x 3 m) + 14 m compost per palisade grass (Urochloa brizantha cv. Marandu). We was of crude protein estimate over-dominance total nitrogen, available method-analyses kjeldahl, calculated further factor [N*6.25 = -1 < P > 1:. -0.7= SD±1.14 g.kg], when extending the analysis [N.E: P2O5 > N, recycle efficiency of conversion per linear correlation of process of formation tale > leaf – metrical plants] it pays to make the redefined the equations for mutations micro-biologic-crops are exactly mutate bite biologic the states of each off- steps with probability 3/4 times we immediately the effects of truncation > forage-mass [RCBD] x chemistry [split-plot - RCBD] were analyzed using a distribution evolution from total efficiency of the nitrogen x gravimeter x macroporosity crops, favorable from formation initial and final in herbage fits. Finally, quantitative forage for animal production, was relate integral work, observation fits response potential in qualitative in arrangement by models, what are the optimal parameters settings. Keywords: Behavior; Composition; Designs; Selection; Variables RESUMO Os objetivos foram disponibilizar a dinâmica e os atributos químicos da braquiária em diferentes sistemas de pastejo. Avaliações de composto em sistemas são pastagens e formadas por plantas Europhyla urograndis em espaçamento de 4 (3 x 3 m) + 14 m em (Urochloa brizantha cv. Marandu). A estimativa de proteína bruta sobredominância ao nitrogênio total, pelo método de kjeldahl e correlacionando correlacionado linearmente [N * 6,25 = -1 1 :. -0,7 = SD ± 1,14 g.kg], ao estender as análises [NE: P2O5 > N, por eficiência de utilização e conversão nos processos de formação das plantas em sistema em ILPF] que foi definido variações químicas no valor nutritivo pelos efeitos de truncamento> massa da forragem [RCBD] x química [split-plot – RCBD], entre as relativas de distribuição e evolução a partir da eficiência total o nitrogênio total x umidade gravimétrica x macroporosidade, favorável para a conformação inicial e final em ajuste para a formação da forragem. A massa de forragem e densidade animal por hectare é um potencial em resposta qualitativa nos arranjos destes modelos. Palavra-chaves: Comportamento; Composição; Design; Seleção; Variáveis 1 INTRODUCTION Effects environmental can make provide options by accord how a utilization in scale form quantitative and qualitative mass in systems. At illustrates linear regression Brazilian Journal of Development, Curitiba, v.7, n.1, p.8437-8450 Jan. 2021
Brazilian Journal of Development 8439 ISSN: 2525-8761 problems over-accumulation from management, conducing in qualitative of forage mass at techniques utilities thought truncate and selection gives forages are elevates per a systems appliances in growth + utilization + conversion + total efficiency of production. The effects and parameters similarities are relatives among the values residuals of forage mass and qualitative mass. Are insufficient the results and availability quantitative and quantitative mass among-st the stocking densities, associates the agricultural and livestock cattle. At selects gives grasses with higher densities from leaves and lower proportions stems increases the potential from quality and quantity formation for accumulation from one complex truncates, under points simulations among-st animals and residues forages observations on relation to process gives cultivates. Variables of forage mass brachiariagrasses, are specifics from forage mass in insensitive densities over structure of analyzes among leaf:colm, observed the using of nitrogenous total in systems integral, this is insufficient to explain the qualitative agreement with simulations [growing and conversion, efficiencies: SD=±0.025>160%, alteration nutrition values] we show the how the agreement did be improving by using more parameters to describe the associate and by introduction finite efficiencies corrections [utilizing, efficiencies SD=±0.012>70%] (Silva et al., 2020). To obtain a deeper understanding of how dynamics work we must only model the algorithm the mixture chemistry soil-pasture and qualitative mass Brachiariagrasses priors results in the largest differences between systems (Allen et al., 2011; Andreolla et al., 2014; Araujo et al., 2013; Detmann, 2012; Brusewitz et al., 1993; D’Andrea et al., 2002; Bransby and McClaurin, 2000). We simulation dates from the linear regression model, considerate a simulation conditional, are equalizes to the considerations at condition of over-quality and quantity fitness in larges effects of corrections, including investigation among normal distribution and variables. The hypothesis and annalist structural mixture chemistry soil-pasture and qualitative mass Brachiariagrasses priors results in the largest differences between systems in relation at constants impacts stocking rate over-quality and quantity fitness. The objectives indicates that when the shrinkage parameters is fixes, only the local regularizes priors allow for shrinkage of small effects while estimating though mixtures chemistry soil-pasture and qualitative mass Brachiariagrasses priors in results largest in differences among-st systems over at relation constants the of impacts stocking rates. Brazilian Journal of Development, Curitiba, v.7, n.1, p.8437-8450 Jan. 2021
Brazilian Journal of Development 8440 ISSN: 2525-8761 1.1 MATERIAL AND METHODS The studied was conduced in Farm Savanna, in municipality Waterfall Golden, in south of state from Goias [altitud 459 m, longitudinal 49°28'30"W and latitudinal 18°29'30"S] from accorded with an classification Köppen and Geiger [Aw]. The average annual from precipitation was 1.200 at 1.500 mm -1. Evaluations compost in systems are grassland and formed per Europhyla urograndis plants in spaced by 4 [3 x 3 m] + 14 m compost per palisade grass [Urochloa brizantha cv. Marandu]. An evaluated for palisade grass [wood + forage] were captured: light interception 69%, medium temperature 36ºC, humidity medium 25% and conventional pasture the light interception 90%, medium temperature 37°C, medium humidity 24% period registered at 11:00 a.m. and 12:05 p.m. Randomized statistical, were two appliances of fertilizers, divided in two times 66% and 34%, distribution to cased, a 35 days. The nitrogen was applied on end of each grazed; 2 kg per paddock or equivalent 100 kg of N ha-1 year-1 Silva et al. (2015) and subjected at adaptation of each grazed. Moreover, drought periods. We had employed irrigation cures one or twice hours per weeded [i.e., equivalent to 75 mm monthly]. 1.2 CHEMISTRY SOILS At characteristics chemistry are of medium texture, collected in depth 0.0-0.2 m: pHH2O = 4.8; P = 4.1 mg/kg; Ca+Mg = 1.6 cmolc/dm-3; K = 0.18 cmolc/dm-3; Al = 0.1 cmolc/dm-3; H+Al = 3.1 cmolc/dm-3 and total carbon = 13.8 g/kg-1 (Embrapa, 1997). 1.3 STOCKING DENSITY Soil samples collected twelve points an every 28 days, utilized one are squad 1m2 with cut in biased forage. Forage and soil samples collected twelve points an every 28 days. The vigor give planted evaluated through stock rate in produced give dry matter to 21 days hereafter cuties and a revelation of day what initial an entire of first cut, available a quantity mass: forage mass [kg/ha-1] and residues [kg/ha-1]. The treatments were Brachiaria brizantha cv. Marandu grass with natural only completely randomized design with twelve replicates. Reasonable predictions usually, were dependency upon the numbered of testers to be assigned to each based-forage and the productively of the based-forage. Accurately numbered steers experiment permitted at higher mean between lower squad mean error. Stocked rates grazed management and five based-forage per treatment, analyst quality and quantity. Numbered testers, put and taken pasture per treatments necessary for hider Brazilian Journal of Development, Curitiba, v.7, n.1, p.8437-8450 Jan. 2021
Brazilian Journal of Development 8441 ISSN: 2525-8761 an eighteen intercepted changed for detected at differences between the systems, calculated 38.46 per cycle pastures in five hectares. Growled x weights - [i.e., feed and water withheld for 16h] were obtained before to start and at the end of each grazing cycle [28 days], and then the weight gain [kg animal -1] per grazing cycle, calculated thorough difference between final and initial weights. Daily weight gain [kg animal-1 day -1] was accounted from the weight gain per cycle divided by twenty-eight days. The supplement intake was obtained subtracting the number of supplements offered during the grazing cycle and collected “orts”. Bull were randomized in paddock, the fed were 0630, 1400, and 1930 h day, with access - “water”; divided in two groups of eight animals, represented [Animal unit: 4.29 ha -1]. The 2 experimental area consisted of 28 paddocks of 400m [total: 1.2 ha] of Brachiaria brizantha cv. Marandu grass supplement with “space box” of 45 cm animal -1. Type of measurement and number - stocked densities, quality [A.D.G, ha] and quantity [TDN per ha], for four bulls per pastures were evaluated quantification: forage accumulated [kg/ha -1], paddock [ha] and [TDN, ha]: C = error of a stocked densities mean for averaged daily produced per steers expressed at coefficient of variation; C’ = error of a stocked densities mean for yield of TDN per hectare; expressed as coefficient of variation; t = length of grazed period in days; a = numbered of differentiated steers grazed the stocked densities dried the trials; d = numbered of steers days the stocked densities was grazed and s = pasture size in hectare. 1.4 ANALYSIS LABORATORY The grass biomass were determined per paddock. The analyzes were carried out to determine the dry matter. Mixed samples of grass from each grazing cycle were collected to determine levels were analyzed for dry matter [105°C for 5 h], crude protein [method 988.05; AOAC, 1990], crude ash [method 942.05; AOAC, 1990], acid and neutral detergent fibers [method 973.18; AOAC, 1990]. Acid and neutral detergent fibers were analyzed addition sodium sulfate and amylase, described per Van Soest et al. (1991). 1.5 STATISTICAL The effects of truncation: chemical soil [split-plot arrangement in a randomized complete block designs] x stocking density [randomized complete block designs] x analyses laboratories [split-plot arrangement in a randomized complete block designs], Brazilian Journal of Development, Curitiba, v.7, n.1, p.8437-8450 Jan. 2021
Brazilian Journal of Development 8442 ISSN: 2525-8761 were analyzed using the MIXED procedure in SPSS software version 2012 (SPSS Institute Inc., Cary, NC), with linear correlation type AR (1) for repeated measures analysis. Alternative designs with repeated measures were used for the analysis, treatment, interaction of treatment x wk and block as the main effects and qualifies and quantifies within the random effects. The linear effect of treatment on the variables were evaluated with orthogonal polynomials accounted for unequal spacing of nitrogenous levels. The results “j” were listed as least squares means and were separated “i” using curtness the option when the fixed effects considered at tendencies signification, of accorded with the author (Ferreira, 2018). 2 RESULTS We have also considered two additional conditions in which “p > n” and the predictors are highly dimensional [fibers (neutral detergent fibers) principal determinant from ingested of the aliments; and digestible protein g/kg of matter dry per hectare yearly]. Unfortunately, most shrinkage priors resulted in too much convergence [forage mass, kg/ha-1 x protein mass, g/kg-1 x stocked densities, body weight / kg-1 > conversion + utilized efficiencies] to trust the results (Table 1). A description of these additional conditions and the available results for the priors that can obtained enough convergence is available at attained at quantity necessary for aliment stocked densities, identifiable indicators ideal-types gametic duties the stages from developed gives plants. We illustrate the shrinkage priors [resilience 2.8 MPa with the used phosphorus therm reactive + nitrogenous in Biomass of Cerrado in data set contained 10.7% variable of coefficients were high-dimensional residents in differences between resilience 2.4 MPa with the used nitrogenous mineral in Biomass of Cerrado in data set contained 14.2%; the predictor variables included 0; 100 and 150 kg N ha-1 and the values comparable with characteristics occupied thought gravimeter humid and organic matter residuals] – two nominal predictors in the data set, resulted on a total of [n = 144] predictors. The number of observations is earlier removing all cases with the values in split-plots standards were approximately equal training [n = 288] predictors and test [n = 576] sets. All predictors were normalized to have zero “mean :. normal statistical” and units variances and the outcome variable was transformed in values proximate to values calculates. Brazilian Journal of Development, Curitiba, v.7, n.1, p.8437-8450 Jan. 2021
Brazilian Journal of Development 8443 ISSN: 2525-8761 Table 1. Fertilizers, N and P uptake (2012 at 2017), overview of the included to predictors Fertilizer N rate df Forage mass Df Composition nutrient - (CP) df Resilience Kg ha-1 Kg ha-1 g M.P.a 0 * ** *** bA 100 41.7 9.7 2.4 150 63.5 15.0‡ 2.4 P.A.D rate (N + P) 20.2 10.5Ab 2.8 ANOVA Source of variation N rate (N) *** 1 ** 2 * P.A.D rate (N + P) NS 1 NS 1 NS Resilience (MPa) NS 1 NS 1 NS Plot (M) NS 4 NS‡ 4 NS N x M.P.a NS 3 NS 6 NS P.A.D x M.P.a NS 3 NS 6 NS VC, % 14.2ba 10.7a *Mean and squad error mean significantly at the 0.05 < p > 0.10 levels (2-tailed); ‡NS, non-significant. The normal mixture prior is a discrete mixture of a peaked prior around zero [the stocking density] and at values properly prior to substantially different from the priors considered an continuous mixtures of fertilizers: [nitrogenous + humid gravimeter; P.A.D + total porosity + humid gravimeter + organic matter + total carbon + phosphorus + nitrogenous] of normal densities. Based on the data, regression coefficients close to “zero or one – in scale of stocking density” will be assigned to the variances in results in shrinkage were high-dimensional in qualitative mass and few- dimensional in quantitative mass in coefficients to what were a derivative substantial of the results presentation. Additionally, we would like to refer process in accumulation where at more sparse forage mass + animal unit, ha-1 modified version of condition is considered contrary to few-dimensional effects environmental at results [forage mass + qualitative mass = stocked densities] from temperature decrease of the 30ºC and high-dimensional effects environmental at results [forage mass + quantitative mass = stocked densities] from temperature increase of the 30ºC and the cross-dates considered are refers at two dimensional light incidence for temperature and humidity, of accorded with period collected at 11:00 p.m. and 12:05 a.m. We have also considered the scaled criteria correlation positively perfect between soil-plant, and a fixed “cut-off values” from forage mass to select the predictors - Brazilian Journal of Development, Curitiba, v.7, n.1, p.8437-8450 Jan. 2021
Brazilian Journal of Development 8444 ISSN: 2525-8761 attained favorably stocking density, quantitative and qualitative mass and nutrition values. The scaled from increment in systems, excludes 18% predictors if the posterior probability contained in Brachiariagrasses 82% exceeds a certainty in relation positively perfects from function qualitative mass and wood, this criterion generally performed of developed to the present treatments than the credibility interval criterion. For the fixed “brachiariagrasses: cuts-residual” value we excluded predictors when the posterior estimate p < 0.5 based in favorable positively perfect for conditions in function of levels results in nitrogenous total in conditions environmental. The choice of this quantitative mass is rather arbitrary and resulted in very high- dimensional in adjusted of management including at phenology stocking rates. For the qualitative mass in difference significance prior, all replications resulted in one or more divergent [systems] transitions, despite repartmentalization of the models. The regularized at availability initials also resulted in divergent transitions [quantitative and qualitative mass] – most replications, thought the percentage of divergent transitions were in average much high for the regularized intensity pastures compared to the stress “environmental”. The percentage divergent transitions are available at equations indicates from detection relevant predictors: “Partial efficiencies = forage mass, kg/ha-1 + protein mass, g/kg-1 = stocked densities; Body weight^0,75 per kg-1 :. growled + utilized + convergence = total efficiencies; Production animal quantitative = mixture chemistry soil- pastures + qualitative “ideotype grasses”:. Priors results in the largest differences between systems.” To be able to included these priors in the overview, we have only considered the dominance nitrogenous-nutritional availability to asses convergence and manually chemical the trace-plots [Kjeldahl Analyses, methodologies] were calculated a deeper investigation into the divergent transitions and alternative parametrizations “real” of the [N*6.25 = -1 < p > 1:. -0.7= SD±1.14 g/kg] - extended the analyses: leaf:colm relationships; in general, the theoretical predictor mean error squad did differ substantive [P2O5 + N] from the variables recycles of conversion in linear correlation of formation initials in except in condition it pays to make the redefined the equations for mutations micro-biologic-crops are exactly mutate bite biologic the states of each off-steps with probability 3/4 times we immediately the effects of truncation in analyzed using the Brazilian Journal of Development, Curitiba, v.7, n.1, p.8437-8450 Jan. 2021
Brazilian Journal of Development 8445 ISSN: 2525-8761 MIXED procedure in SPSS software distribution between put-and-take and stocking rate and density equations how favorable transient of period of management intense in pasture. In used remains constant and the equation of mean is a linear is no recall differences equation mathematical to total efficiency in gain residual, as characteristics rates which is appliance this predicts approximations are too crude protein:energy; this simple model does explain the overall behavior; initial from effects variable decays rapidly to then there is a long period as the mean appropriate its equilibrium values and obtained estimates for the characteristics importance associate with linear a phase by equilibrium values between mean is variable to consumed. We can sensed which from 60 and 80% due protein, were available these analyses on relationships a digestible crude protein, to long of development the value nutrient increase on relation to management and environmental. 3 DISCUSSION These effects on physical, chemical and microbial are importations for the processes from decomposition give organic matter utilize thought plants (Balota et al., 2003). An action physical of soil and correlate forage mass are variables relation between of the points interconnect with soil-plant per an average gain forage mass on response interactive with possible by modify between systems. Drying is necessary in the herbage (usually, 750-850 g/kg-1) depends upon the stage of growth, plant species or variety, fertilizer nitrogen use and the amount of external water in form rain (Frame and Hunt, 1971). The microbial and total carbon support the development give plant, cycling the nutrients for plant, maintain a health soil to long of time (Jousset et al., 2011; USDA- NRCS, 2019; Fierer, 2017). The microbial biomass drives nutrient mineralization and is a small but labile source of major plants [fertilizer-nutritional] (Jenkinson and Ladd 1981; Dick 1992). The growth of the tropical pasture is basically initial by the forage mass per light interception 95%, the pattern of regrowth changes, occur reduction in the residue – forage remaining on the land after harvest (Kichel et al., 2014; Marchezan et al., 1998; Marten, 1981; Silva et al., 2015; Souza et al., 2013). Research techniques in forage evaluation to evolves at forage characterization therefor grass ecosystem are important to concentrate Brazilian Journal of Development, Curitiba, v.7, n.1, p.8437-8450 Jan. 2021
Brazilian Journal of Development 8446 ISSN: 2525-8761 enforce and energy with high forage mass, intermittent or variable stocks, regulator put- and-take and with good production mass (Sollenberg, 1993). A chemical impacts from pasture management on soils acids, to long-time, the impacts for microbiology reduce considerably and reduce total carbon, considerable crops (Yang et al., 2019). This is gravimeter humid soil and important for reduce the heat of soil surface layer salient a conductivity thermal and response fertilizer with efficiency reactive by transfer efficient for plant (Tornema et al., 2002). The model applicant on area by integration on texture medium for tillage crops from growing physiology for productions grass crop and infrequent under management continuous grassland with short modification (Tormena et al., 2002; Vogel and Fey, 2016). 4 CONCLUSIONS Is that we considers macroscopic suggestions pastures sum supplemental associates to process from developers effects environmental did make provides options by utilization scales production for models dynamics and yours technique:. A composite chemistry were superiors for over particles ad equates indicators for detection over as parts between: Partial efficiencies = forage mass, kg/ha-1 + protein mass, g/kg-1 = stocked densities; Body weight^0,75 per kg-1 :. growled + utilized + convergence = total efficiencies; Production animal quantitative = mixture chemistry soil-pastures + qualitative “ideotype grasses”:. Priors results in the largest differences between systems, for fitness, how in general parameters similarities the cost relatively per total efficiency per hectare over time [P2O5 + N] and return residual stocking rate [beef cattle] in relation conventional systems sea the management the point intrinsic express resultant light incidence, climate and crops; the effects of truncation + forage mass + animal unit, ha-1 > forage mass + qualitative mass = stocked densities = brachiariagrasses:. Cuts-residual > [randomized complete block design] :. PMSE. We have gone through a lot of calculations observes a matrices of accords how a biologic efficiencies in performance positively per two parameters cites, linearly correlation directions from availability and introducing higher obtain of the calculates. “What are formations of the process mathematical appliance in micro- biologic to long times per effects truncates in systems general relatively from high-dimensional cutting, is better return total of efficiency?” Brazilian Journal of Development, Curitiba, v.7, n.1, p.8437-8450 Jan. 2021
Brazilian Journal of Development 8447 ISSN: 2525-8761 Notes, which results are available for the groups in conditional -1 < p > 1, since “yes” conditional structure is present in the conditions; denotes the prior guess for the number of relevant variables, “p0” which was set to the true number of relevant variables, except in conditions 2 where all “number” variables are relevant, so we set “p0” and for the classical analyses eventual in penalization methods, were selection automatically shrink some coefficients to exactly zero so that no criterion such as a confidence interval for variable selection is needed and included process mathematical applicability in different correct or false stocking rates. Imputation of missing values high-dimensional cutting and qualitative mass per total of efficiencies, removing all cases with missing values to provide an illustration of the shrinkage methods in a sparse data set from the treatments. ACKNOWLEDGMENTS The Ministry of Science, Technology, Innovation and Communications to the lengths and support the bases of scientific research in support of technical and practical development for the understanding and use of scientific techniques that take into consideration the young teachers and doctors. Compliance with ethical standards CONFLICT OF INTEREST The authors declare that they have no conflict of interest. SUPPLEMENTAL A classification of Köppen and Geiger (Aw) were registered an average annual by 1.200 mm. At fertilization plain soil were application on formation by urea 100.0 and 150.0 kg -1 ha N and monodic phosphate 100.0 ha-1 N and 187.5 kg ha-1 P, respectively. A fertilization yearling and with the intuit by attained the dry matter ingestion of cattle. Randomized complete block design sensed two fertilizers divided on two time 66% and 34% a cased 35 days. A characteristic of soil in area and type Oi-soil, medium texture, with a depth 0.0-0.2 m: pHH2O = 4.8; P = 4.1 mg kg; Ca+Mg = 1.6 cmolc dm-3; K = 0.18 cmolc dm-3; Al = 0.1 cmolc dm-3; H+Al = 3.1 cmolc dm-3 and total carbon = 13.8 g kg-1. The calculation for samples area scissors was completely expanded green leaves with the obtained per area by 200cm2. The residue forage was renamed on the land after harvest. Brazilian Journal of Development, Curitiba, v.7, n.1, p.8437-8450 Jan. 2021
Brazilian Journal of Development 8448 ISSN: 2525-8761 Afterwards, there were samples taken to the oven with forced air at 85ºC until reached constant weight, obtained forage mass total dry weight of forage per unit area of land. A sub-part give sample 20 g ground to pass per Willey Hammer Crusher per moist screen 1 mm analyses dry matter, ash, crude protein, total nitrogen, indigestible and acid neutral detergent nitrogen, acid and neutral detergent fibers and lignin (Detmann, 2012). The vigor give plant evaluated through stock rate on production give dry matter to 21 days after cut and a relation of day what initial an entire of first cut, available a quantity mass: forage mass (kg/ha-1) and residue (kg/ha-1). The treatments were palisade grass (Urochloa brizantha cv. Marandu) pastures and grazing systems or mixture of signal grass, palisade grass grazing systems only completely randomized design with twelve replicates. Forage and soil samples collected twelve points an every 28 days. Brazilian Journal of Development, Curitiba, v.7, n.1, p.8437-8450 Jan. 2021
Brazilian Journal of Development 8449 ISSN: 2525-8761 REFERENCES Allen, V.G.; Batello, C.; Beretta, E.J.; Hodgson, J.; Kothmann. X. An international terminology for grazing lands and grazing animals. Journal Grass & Forage Science, 66:2-28, 2011. Andreolla, V.R.M.; Bonini, A.K.; Deiss, L.; Sandini. I.E. Soil physical attributes in integrated bean and sheep system under nitrogen levels. Journal Science Agronomic, 45(5):922-930, 2014. Araújo, R.; Goedert, W.J.; Lacerda. M.P.C. Soil quality under different uses and native cerrado. Journal Brazilian Science Soil, 31(5):1099-1108, 2013. Balota, L.E.; Colozzi-Filho, A.; Andrade, D.S.; Richard, P.D. Microbial biomass in soils under different tillage and crop rotation systems. Biologic Fertilizer Soils, 38:15–20, 2003. Brusewitz, G.H.; Chase, L.E.; Collins, M.; Delwiche, S.R.; Garthe, J.W.; Muck, R.E. 1993. Forage moisture determination. NRAES-59. Ithaca, N.Y.: Northeast Regional Agricultural Engineering Service. D’ Andréa, A.F.; Silva, M.L.N.; Curi, N.; Ferreira. M.M. Attributes aggregate indicators of soil quality in management systems in the Cerrado region in southern Goias state. Journal Brazilian by Scientific of Soil, 26(4):1047-1054, 2002. Detmann, E. 2012. Methods for food analysis. 1nd ed. Viçosa, BRA: Supreme Graffias Book Co. 214p. Dick, R.P. A review: long-term effects of agricultural systems on soil biochemical and microbial parameters. Agricola Ecosystem Environmental. 40:25–36, 1992. Embrapa - Empresa Brasileira de Pesquisa Agropecuária. 1997. Manual methods of soil analysis. 2rst ed. Rio de Janeiro, Rio Janeiro, BRA: Service National by Entanglement e Conservation by Soils Graffias. pp.212-217. Ferreira, D.F. 2018. Multivariate Statistic. 3nd ed. Minas Gerais, BRA: UFLA Book Co. 586p. Fierer, N. Embracing the unknown: disentangling the complexities of the soil microbe. Nature Reviews Microbiology, 15:579–590, 2017. Frame, J.; Hunt. J.V. The effects of cutting and grazing systems on herbage production from grass swards. Journal of the British Grassland Society, 26:163-171, 1971. Da Silva, I.M.; Oliveira, O.G.; Bento, B.M.C.; Machado, C.M.M.; Cruz, S.R.; França, A.C.; Rodrigues, C.C. Growth and nutritive value of the xaraés grass under different fertilization and soil moisture, Brazilian Journal of Development, 6(8):61669-61683, 2020. Brazilian Journal of Development, Curitiba, v.7, n.1, p.8437-8450 Jan. 2021
Brazilian Journal of Development 8450 ISSN: 2525-8761 Jenkinson, D.S.; Ladd. J.N. Microbial biomass in soil: measurement and turnover. 1981 In: Paul EA, Ladd, J.M. (eds) Soil biochemistry, vol 5. Decker, New York, pp 415–471. Jousset, A.; Schulz, W.; Scheu, S.; Eisenhauer. N. Intraspecific genotypic richness and relatedness predict the invasibility of microbial communities. The ISME Journal, 5:1108– 1114, 2011. Kichel, N.A., J.A.A. Costa, R.G. Almeida, and V.T. Paulino. System of integrated: agriculture-pastoral-forest-integrate systems - experiences in Brazil. Journal by Industrial Animal, 71(1):94-105, 2014. Marchezan, E.; Vizzotto, V.R.; Zimmerman. F.L. Production of different winter forages in different spacing between surface drains under lowland animal grazing. Science Soil, 28(3):393-397, 1998. Marten, G.C. Chemical, in vitro and nylon bag procedures for evaluating forage in the USA. 1981. In: Forage Evaluation: Concepts and Techniques. Lexington, Ky: American Forage and Grassland Council, pp.39-55. Silva, A.A.S.; Fonseca, D.M.; Santos, M.E.R.; Souza, B.M.L.; Gomes. V.M. Initial height and nitrogen fertilization on deferred signal grass. Bioscience Journal, 31(6):1671-1681, 2015. Souza, F.H.D.; Matta, F.D.; Favaron. A.P. Construction of idiotic the plant for use diverse. 2013. In. Lump B. Characteristics morphological and physiologic associates at quality give forage. 1rst ed. Brasilia, District Federal, BRA: Embrapa Books. pp.17-33. Sollenberg, E.L.; Cherney. D.J.R. Evaluating forage production and quality. 1993. 1nd ed. Florida, USA: Springer Books Co. pp.10-14. Stolf, R.; Fernandes, J.; Furlani Neto. V.L. Recommendation for the use of IAA/Planar- Stolf impact penetrometer. 1983. 1st ed. Piracicaba, São Paulo, BRA: IAA/PLANALSUCAR. pp. 9-11. Tormena, C.A.; Barbosa, M.C.; Gonçalves. C.A. Densidad, porosity and resilience in Oxisol grown under different tillage systems. Scientist Agricola, 59(4):795–801, 2002. USDA-NRCS. 2019. Soil health. USDA-NRCS Available at https:// www.nrcs.usda.gov/wps/ portal/ nrcs/ main/ soils/ health/ (accessed on 5 March 2019). Vogel, G.F.; Fey, R. Mechanical resilience to penetration in different land use systems. Journal of Agriculture Subtropical, 3(1):21–26, 2016. Yang, Y.; Ashworth, A.J.; DeBruyn, J.M.; Willett, C.; Durso, L.M.; Cook, K.; Moore, P.A.; Phillip. R. Soil bacterial biodiversity is driven by long-term pasture management, poultry litter, and cattle manure inputs. Crops Science, 7:7839-7859, 2019. Brazilian Journal of Development, Curitiba, v.7, n.1, p.8437-8450 Jan. 2021
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