Produção do capim-elefante submetido a doses crescentes de composto orgânico

Abstract

The search for alternative fertilizer sources has intensified in recent years, due to its ability to generate natural resources and those responsible for the inactivation of natural resources, but always because of the high cost of mineral fertilizers. Diverdeste, the purpose of the use of organic production of elephant grass (Pennisetum purpureum, Schum) was objectified. The experiment was conducted at the Macaíba campus of the Federal University of Rio Grande do Norte. The experimental design was done in randomized blocks with six treatments and four replicates. The levels observed were increasing doses of organic compound (40; 48: 150 kg.ha-1). A cut of 75 days was performed. As variables used were: Plant height; Diameter of the stem; Number of tillers; Sheet production; Production of stalk; production of total dry mass (PMST). The production of dry goods in the application of 33 t.ha-1 is a quantitative increase, totaling a yield of 20,38 t.ha-1, giving a 35% increase over a control. Comparing PMST with the image of mineral fertilization and other treatments, it was observed that it was superior to the other treatments. Parameters of plant height, stem mass, leaf mass, fertilization with positive linear selective increase. However, the treatment with the high quality of the aneurysms is characterized in relation to the analyzed variables. However, when compared to the production of data, the amount of data used is less than the amount of data used.