THE EFFECT OF BALANCE FERTILIZATION COMPOSING OF RICE STRAW ORGANIC FERTILIZER AND NPK FERTILIZER ON GROWTH AND YIELD OF PADDY FIELD RICE (ORYZA SATIVA L.)

The objective of this research was to study the effect of balance fertilization consisting of rice straw organic fertilizer and NPK inorganic fertilizers on the growth and yield of paddy field rice as well as to utilize rice straw available in abundant quantity at paddy feld area as nutrients and organic matter sources. This research was done at Lebak Kajang Village, Belitang Madang Raya Subdistrict, OKU Timur District from December 2013 to April 2014. Split Plot Design with 3 replications was used in this research. The main plot was rice straw addition with four levels consisting of J0: without rice straw addition (control), J1: rice straw at dose of 5 ton.ha-1, J2: rice straw at dose of 10 ton.ha-1 and J3: rice straw compost at dose of 5 ton.ha-1. The subplot was N, P, and K fertilizers dose with three levels consisting of P1: NPK 100 % (N-P2O5-K2O: 135-27-30 kg.ha-1); P2: NPK 75 % (N-P2O5-K2O: 101.25-20.25-22.5 kg. ha-1) and P3: NPK 50 % (N-P2O5-K2O: 67.5-13.5-15 kg.ha-1). The subplot was NPK fertilizer addition with three levels consisting of P1: NPK 100 % (N-P2O5-K2O: 135-27-30 kg.ha-1); P2: NPK 75 % (N-P2O5-K2O: 101.25-20.25-22.5 kg. ha-1) and P3: NPK 50 % (N-P2O5-K2O: 67.5-13.5-15 kg.ha-1). The observed parameters were tiller numbers per clump, leaf numbers per clump, Leaf Area Index (LAI), Crop Growth Rate (CGR), panicle numbers per clump, panicle weight per clump, unhulled rice weight per