The efficiency of N uptake and rice yield on the various compositions of quail manure and inorganic fertilizer in the paddy field of Palur, Sukoharjo, Central Java

Abstract

Abstract. Supramudho GN, Syamsiyah J, Mujiyo, Sumani. 2012. The efficiency of N uptake and rice yield on the various compositions of quail manure and inorganic fertilizer in the paddy field of Palur, Sukoharjo, Central Java. Bonorowo Wetlands 2: 11-18. The objective of the research was to determine the influence of manure and inorganic fertilizer on N uptake efficiency and rice plants' yield (Oryza sativa L.). Using inorganic fertilizer continuously can decrease rice production, resulting in saturated agrochemistry material and the lower efficiency of N uptake by plants. It is necessary to equally fertilize both manure and inorganic fertilizer to overcome the problem. The research is conducted at rice field Palur Sukoharjo and Soil Chemistry and Fertility Laboratory of Agriculture Faculty, Sebelas Maret University, Surakarta. This research represents experimental research using randomized completely block design (RAKL) factorial with two factors. There are three factors manure i.e. O1 (non-manure), O2 (manure 3 tons/ha.), O3 (manure 6 tons/ha.) and three factors inorganic fertilization i.e. A1 (non-inorganic fertilizer), A2 (Urea 15-kg/ha + ZA 50 kg/ha + SP-36 75 kg/ha + KCl 50 kg/ha), A3 (Urea 300 kg/ha + ZA 100 kg/ha + SP-36 150 kg/ha + KCl 100 kg/ha). The statistical analysis of the research uses the F test, Kurscal-Wallis Test, and DMR test 5%. The result shows no interaction between manure and inorganic fertilizer results in N total soil, N uptake, and milled dry paddy weight. The equal intake of manure 6 tons/ha + Urea 300 kg/ha + ZA 100 kg/ha + SP-36 150 kg/ha + KCl 100 kg/ha give result N total soil, efficiency of N uptake and milled dry paddy weight at the highest value, respectively 0.5%, 55.5%; 17.33 kg/ha (6.66 ton/ha.).