POTENTIAL OF COMPOSTED SUGAR PALM SOLID WASTE IN IMPROVING THE AVAILABILITY OF N REGOSOL AND ITS ABSORPTION BY SWEET CORN
Lelanti Peniwiratri, Didi Saidi and Paskalis Kopong Lewar
Programme of Study in Soil Science, Faculty of Agriculture, UPN Veteran Yogyakarta
Abstract
ABSTRACT The Heap of sugar palm solid waste often become pollutants, potentially used as organic fertilizer by making it compost, because it contains organic matter and high N. Regosol is soil that has poor physical and chemical soil conditions for corn growth because it is constrained by a rough texture and low N. This study aims to determine the effect of compost from sugar palm solid waste on the availability of N Regosol and its uptake by corn. This research is a pot experiment, using Complete Random Design method (CRD) with 5 treatments, each treatment was repeated 3 times. The five treatments are: K0 = Compost at a rate of 0 tons / ha (control), K1 = Compost at a rate of 22.24 tons / ha, K2 = Compost at a rate of 44.48 tons / ha, K3 = Compost at a rate of 66.72 tons / ha and K4 = compost at a rate of 88.96 tons / ha. The results of the study were analyzed with variance at a 5% significance level if there is a real effect further tested by Duncans Multiple Range Test at 5%. The results showed that the application of palm sugar solid waste compost could increase the availability of N Regosol and N sweet corn nutrient uptake. Application of palm sugar solid waste compost at a rate equivalent to 44.48 tons/ha significantly responds to the increased availability of N Regosol and the best absorption of corn.
Keywords: Keywords: sugar palm solid waste compost, N-available, uptake of N, corn, Regosol.
Topic: Soil and Water Management