Pengaruh interval waktu pemupukan dan dosis pupuk NPK terhadap pertumbuhan dan komponen hasil tanaman hanjeli

Abstract

The objectives of this research were to study time interval of fertilization and NPK compound fertilizer for growth and high yield of job’s tears. This experiment was conducted from February to July 2013 at Station Farm Ciparanje, Faculty of Agriculture, Universitas Padjajaran, Jatinangor, Sumedang. This experiment was arranged in randomized complete block design factorial pattern with two factors. First factor were time interval of fertilization with four level i.e. one, two, three, and four times, and the second factor were the dosage of NPK compound i.e. 200, 300, and 400 kg/ha. Combination of interval of fertilization and NPK compound fertilizer as treatment and replicated three times. The results that there was interaction effect between fertilization time intervals and NPK compound fertilizer for the number of tillers. Treatment of time intervals with twice application with 300 kg/ha dosage increased the number of tillers. The treatment of fertilization interval with four times applications increases the number of tillers. The effect of NPK compound fertilizer did not effect towards all variable examined. The most efficient treatment was application of time interval with 200 kg/ha dosage but did not difference with four time application with 400 kg/ha dosage.