Brazil: Forage consortia used in second crop improves soil and increases soybean productivity

Published 2022년 2월 2일

Tridge summary

Research from Embrapa Agrossilvipastoril and the Federal University of Mato Grosso has shown that forage consortia in no-tillage systems and crop-livestock integration can improve soil chemical and physical attributes, leading to increased soybean productivity. The study found that all consortia evaluated exceeded the target dry matter production, with high dry matter content mainly from brachiaria grass. The consortia also showed positive balances for carbon accumulation, with the exception of one using pigeon pea Super N. The research also highlighted the benefits of nutrient cycling and maintenance of soil porosity in the consortia, with the sextuple intercropping showing the best performance. A grazing simulation in the third year of the evaluation led to a reduction in macroporosity in all soils.

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Original content

Alternatives for crop rotation in the second crop in no-tillage systems in straw and in crop-livestock integration systems, forage consortia contribute to the improvement of chemical and physical attributes of the soil. Research carried out at Embrapa Agrossilvipastoril (MT) in partnership with the Federal University of Mato Grosso, Sinop campus, (UFMT) indicated better nutrient cycling, maintenance of soil porosity and carbon accumulation. The consequence is an increase in the productivity of soybeans sown in the sequence. Over the years, Embrapa researchers and UFMT professors have been evaluating different types of intercropping, always with the presence of one grass plus another species, or even a multiple intercropping option, with six species. All are sown after the soybean harvest. According to UFMT professor Arthur Behling, for a good no-till system, it is necessary to produce five tons of dry matter per hectare per year. In this regard, all the consortia evaluated far ...

Source: Suinoculturaindustrial