Pengaruh Irigasi Defisit pada Stadia Vegetatif terhadap Hasil dan Efisiensi Penggunaan Air Tanaman Kedelai (Glycine Max [L] Merr.)

Abstract

The purpose of this research was to know the influence of deficit irrigation at vegetative stage toward soybean plants productivity with compered the growth rate and the result harvest of soybean plants toward in deficient water level differently. The parameter had observed include the growth plants rate observation and after harvest observation. The research method was used Complate Random Design (RAL) with five treatments that had given K1 (0-100% KATT), K2 (0-80% KATT), K3 (0-60% KATT), K4 (0-40% KATT), dan K5 (0-20% KATT) notation as soon as four times repeatedly. The data analysis was used investigation manner and continued with Different Fact Test (BNT) level 5% and 1 %. The result of observation and data analysis showed that the soybean plants started at deficiency at fourth week until sixth week in K3 (0-60% KATT), K4 (0-40% KATT), dan K5 (0-20% KATT) treatment and the efficiency of using the highest water toward K1 (0-100% KATT) treatment in the amount of 0.651 gram/l with average result was 12,71 gram/plants. Keywords: Deficit Irrigation, Efficiency Use of Water, Soybean, Vegetative