Indicadores de qualidade do solo e sua relação com a produtividade em sistemas integrados de produção agropecuária em plantio direto
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Data
2018-07-11
Autores
Laroca, Jackeline Vieira dos Santos
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Universidade Federal de Mato Grosso
Resumo
The objective of the work was to evaluate the influence of the consortia with leguminosas in
the phase pasture of SIPA-PD in the increment of organic matter, in the activity
microbiológica of the soil and productivity of grains and production and quality of the
pasture. And to identify the indicators of quality of the soil with influences in the changes of
the productivity of the system. The experiment was driven in Itiquira (MT) in a Latossolo Red
distrófico, where they were implanted, after crop of the soy, the treatments with grassy
Urochloa ruziziensis, U. brizantha to cultivate BRS Paiaguás, Panicum maximum to cultivate
BRS Tamani and U. brizantha to cultivate BRS Piatã cultivated unmarried and associated
with bean caupi (Vigna unguiculata) to cultivate BRS Tumucumaque and bean guandu
(Cajanus cajan) to cultivate BRS Mandarim. The experimental delineamento was of blocks
casualizados with three repetitions in outline of subdivided portions where the grassy ones
were considered as portions and the subparcelas were represented by the leguminosas. It was
verified that the consortia provided increments in the tenors of C and N as well as in their
fractions particulate and in the index of handling of carbon. C and N of the microbial biomass
were also increased by the adoption of the consortia with leguminosas, and the single
cultivations presented high values of basal breathing and metabolic quotient, evidencing stress
in the microbiota of the soil. Plant productivity was positively influenced by consortiums with
cowpea. Dry matter and crude protein have a positive and significant influence on animal
production. And the C of the microbial biomass followed by the N in the organic matter was
used in the tests that improved explicitly as the changes in productivity. The Paiaguás and
Piatã grasses intercropped with leguminous cowpea beans provide greater increases in
attributes related to soil quality, also reflecting the higher yields of the system.
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LAROCA, Jackeline Vieira dos Santos. Indicadores de qualidade do solo e sua relação com a produtividade em sistemas integrados de produção agropecuária em plantio direto. 2018. 44 f. Dissertação (Mestrado em Engenharia Agrícola) - Universidade Federal de Mato Grosso, Instituto de Ciências Agrárias e Tecnológicas, Rondonópolis, 2018.