O uso de fertilizantes organominerais para o desenvolvimento inicial do milho

Abstract

Meet a demand for agricultural products and reducing environmental impacts requires changes in production systems, mainly whith development of fertilizers that minimize losses and maximize environmental compensation. In this case organomineral fertilizers (OMFs) are a promising alternative for increasing the eco-efficiency of agricultural systems. This paper evaluated the effect of different sources of organic matter, used in the preparation of organomineral fertilizers, in a greenhouse, about the morphophysiological characteristics of millet plants development, and the chemical and biological attributes of the soil. The experimental design consisted of random blocks with eight treatments (F1 - Solubilized Peat + Phosphated Organomineral with Cellulose Source; F2 - Normal Peat + Phosphated Organomineral with Cellulose Source; F3 - MAP + Solubled Peat; F4 - MAP + Normal Peat; F5 - Organomineral Fertilizer + Acadian; F6 - Organomineral Fertilizer + Bokashi; F7 - Conventional Mineral Fertilizer; F8 - Polymerized Fertilizer and Control) in four repetitions. It was found that the organomineral fertilizers provided the same morphophysiological performance of the plant shoot as that verified for the reference mineral fertilizers, but there was a greater accumulation of dry mass of roots in the treatments with OMFs, except for the F3 treatment. For most of the studied atributes the organomineral fertilizers was performed equal or superior to those verified for the mineral fertilizer.