Effectiveness of solid organic fertilizer (SOF) on lowland rice in Maros, South Sulawesi

Abstract

Rice is one of the most important staple cereal foods and major food for more than a third of the world's population. The use of organic fertilizers is needed to improve soil quality and increase crop production. The research objective was to determine the effectiveness of solid organic fertilizer (SOF) on the growth and production of lowland rice. This research was conducted in Lau District, Maros Regency, South Sulawesi, from October 2019-February 2020. Field experiments were arranged in a Randomized Complete Block Design (RCBD) with 8 treatments and repeated four times. The treatments studied were A=without fertilizer; B=NPK 100%; C=NPK 75%; D=NPK 100%+SOF 50%; E=NPK 75%+SOF 100%; F=NPK 75%+SOF 150%; G=NPK 100%+SOF75%; and H=NPK 100%+SOF 100%. The parameters observed were plant height at harvest time, number of productive tillers, number of panicles, number of filled grains, number of empty grains, the weight of 1,000 grains, and yield of GKP. The results obtained indicate that the treatment of F = NPK 75% + SOF 150% gives the highest yield namely 5,03 t ha-1, with RAE 200%, profit Rp. 10.226.100, and R/C ratio 2,03