Produção de mandioca em função da adubação verde, biofertilizante e composto orgânico

Abstract

There are several sources of organic fertilizers, able to meet the need of cultures, promoting productions that make it possible to remunerate satisfactorily the producer without promoting changes in the agricultural environment. In this sense, this research aimed to study the effect of green manures, composting and foliar fertilizer on the productive characteristics of cassava. The experiment was conducted at the Fojos site, municipality of Garanhuns, using the design of blocks at random, in sub-subparcela scheme (4 x 2 x 4), four legumes on plot (Sunn hemp, string bean, bean, pigeon pea bean dwarf), absence and presence of organic compound (sub-plot) and four concentrations of biofertilizer in subsubparcelas (0, 5, 10:15%). The variables analyzed were: length of commercial roots and totals; mean diameter of the roots and total trade; number of total and commercial roots per plant; fresh pasta business and total root per plant; commercial roots and total productivity; harvest index; percentage of root dry matter; percentage of starch content; moisture of Tuberous root and yield of flour. The data were subjected to analysis of variance. And averages compared by Tukey test at 5% probability. To the study of bio-fertilizer concentrations, was employed to polynomial regression analysis. The green manure can supply plants in the absence of organic compound, particularly the Green pig bean fertilizer, without compromising the productive components of manioc. The organic compound associated with the pork and beans the guandu dwarf beans increased the number and productivity of commercial roots. Productivity of cassava in the areas incorporated with the guandu dwarf beans increased as a function of the concentrations of biofertilizer. Green pigeon pea bean dwarf compost, associated with the bio-fertilizers, increase the levels of starch and flour yield.