Respuesta del cultivo de caña panelera Saccharum officinarum L. A la fertilizacion fosfatada

Abstract

The present work was realized between the months of January and August of 2008 in a village called "La Pradera" located in "La Caldera", municipality of Pasto, Department of Nariño; the lot is in an altitude of 2163 m. and with a temperature between the 18° C average. The aim of the present work was to determine the behaviors of crop to the fertilization with diverse doses of diammonium phosphate DAP. It was employed a design of complete blocks at random with five treatments and three repetitions, T1: control; T2: organic fertilizer, (MONOMEROS (3,0% total phosphorus)); T3: 125 kg./ha. of P2O5; T4: 150 kg./ha. and T5: 225 kg/ha. was a used variable like: altitude of plants, diameter of stalk, distance between knots, numbers of re-bud or sprout. The analysis of variance realized indicates that the T4 give the best answer to the evaluated variables with an average of 3,17 m., in the diameter of stalk average of 9,65 cm. and about the number of bunch 8,09, and the distance between knots it showed 18,16 cm. to the cultivation of Saccharum officinarum L. The economical analysis of the different treatments showed that this treatment generated a major profit in the cultivation for a time of four years.