Use of vinasse as organic amendment and its influence on vertisol chemical properties and sugarcane yields
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Abstract
developed at the production areas of «EnriqueVarona»
agroindustrial complex, in Ciego de Avila province, with the
objective of evaluating the effect caused by applying pure
vinasse on the chemical properties of Vertisols. Thus, a random
block design formed by four replications and seven treatments was
selected , applying pure vinasse doses from 50 up to 250 m3.ha-1 to
plant cane. The control treatment just with mineral fertilizer.
Results indicate no significant changes in the pH on water
and potassium chloride; however, there were increments in
the contents of organic matter, available phosphorus and
potassium. The residual effect of vinasse allowed to omit mineral
fertilization those five years.
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