Soil physical quality in crop-livestock systems in a beef cattle-rearing pasture / Qualidade física do solo de pastagens em sistemas de integração lavoura pecuária para recria de bovinos de corte
Cassante de Lima, Camila; Clerici de Maria, Isabella; Molinari Peres, Roberto.
B. Indústr. Anim.;
702013.
Artigo
em Inglês
| VETINDEX
| ID: vti-467331
Resumo
Crop-livestock systems (CLS) using no-tillage systems have been used to reform and recover degraded pastures, allowing farmers greater profitability and improving soil health. In an experiment with the purpose to evaluate four models of CLS in rearing of cows Nellore, comparing them with the rebuilds performed in permanent pasture, soil physical attributes of quality (density-Db, microporosity-Mi and diameter weighted aggregates-DWA) were evaluated in three soil layers (0-10, 10-20 and 20-40 cm) six years after implantation. The experiment was located in the Research Unity of São José do Rio Preto/APTA, in an Ferrasol, texture sandy/medium. The 26 ha-area was divided into 24 plots, distributed according to a randomized block design, with four replications and six treatments: (T1) permanent pasture with moderate fertilization (application of 45 kg of N/ha/year); (T2) permanent pasture with fertilizer intensive (90 kg of N/ha/year divided into two applications), and four CLS models with fertilization equal to the second treatment: (T3) one year of maize followed by two pasture; (T4) one year of corn and one of pasture, (T5) two consecutive years of corn followed by a pasture and (T6) two consecutive years of corn followed by two years of pasture. The goal was to provide information to identify environmental gains of CLS models with their long-term use. Changes were observed in tO artigo não apresenta resumo em português.
Biblioteca responsável:
BR68.1
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