Effect of Cow Manure and Straw Compost Application on Growth and Yield of Rice (Oryza sativa L.)

Abstract

Rice (Oryza sativa L.) is a food crop that has an important role as a source of staple food for most of the Indonesian population. Rice productivity still needs to be improved, one of which is the application of nitrogen and potassium fertilizers. Cow manure is known to have high nitrogen content and straw compost is known to have high potassium content. Both materials have the potential to be an alternative to chemical fertilizers. This study was conducted to obtain the best dose of cow manure and straw compost to support the growth and yield of rice (Oryza sativa L.). This research was conducted in rice fields located in Bangodua Village, Bagodua District, Indramayu, West Java. The experimental design used was a group randomized design with 16 treatments and 2 replications. The treatments were a combination of doses of cow manure (0, 5, 10, and 15 tons/ha), and doses of straw compost (0, 5, 10, 15 tons/ha). Observation data were analyzed using ANOVA, Duncan's Multiple Range Tets further test at the 5% level. The results showed that the combination of cow manure and straw compost doses had a significant effect on plant height, number of tillers per clump, grain weight per clump, and 100-grain weight. The combination of 15 tons/ha of cow manure and 10-15 tons/ha of compost produced the highest dry grain weight per harvested clump. On the other hand, the combination of 15 ton/ha cow manure and 15 ton/ha compost produced heavier 100 seed weight.