Response of Khao Dawk Mali 105 Rice to Bee Products, Organic and Chemical Fertilizers in Ubon and Roi Et Soil Series

Abstract

Two field experiments were conducted in Ubon and Roi Et soil series in Ubon Ratchathani province objectively to investigate the response of Khao Dawk Mali 105 rice to the application of bee products (BP), cow manure (CM) at the rate of 500 kg/rai, granulated organic fertilizer (GOF) at the rate of 100 kg/rai and chemical fertilizer (CF) at the rate of 8 : 8 : 4 kg/rai of N : P2O5 : K2O. Experimental design was arranged in randomized complete block with four replications similarly for both experiments. Treatments comprised; T1 : control, T2 : CM, T3 : GOF, T4 : CM + BP, T5 : GOF + BP, T6 : BP, T7 : CF and T8 : = CF + BP. The rice in the context of growth, grain quality and unmilled grain yield clearly responded to all inputs in both soils. The application of CF with and without BP significantly gave the highest respective unmilled grained yield of 788 (T8) and 731 (T7) kg/rai in Ubon soil series whereas CF + BP (T8) statistically promoted the greatest unmilled grain yield of 756 kg/rai in Roi Et soil series. Comparing among three different types of fertilizer in both soils with no BP applied, CF significantly induced the highest unmilled grain yield, followed by GOF and CM respectively. Growing Khao Dawk Mali 105 rice without fertilization, BP foliar application significantly stimulated greater unmilled grain yield than the control with no application.