2021 Volume 12 Issue 2 Pages 104-109
The addition of compost to the soil can increase the efficiency of chemical fertilizers, improve plant growth, and sustain the environment. This field experiment was conducted at Yezin Agricultural University Farm, Yezin, Nay Pyi Taw, during the 2020 wet season, from July to November, to investigate sustainable rice production along with optimum farm productivity. The experiment was arranged in a randomized complete block design (RCBD) with four replications. The treatments were as follows; T1 (control, no fertilizer), T2 (100-16-66-12 N, P, K, S) kgha-1, T3 (4 ton ha-1 Compost), and T4 (4 ton ha- 1Compost and 50-8-33-6 N, P, K, S) kgha-1. Urea, Triple superphosphate, Muriate of potash, and Gypsum were used as sources of N, P, K, and S and the rice variety tested was Sinthukha. The plant growth characteristics were collected at biweekly intervals and yield and yield components were recorded at harvest time. Results showed yield and yield components responded to the application of different treatments. The number of panicles hill-1, the number of spikelets panicle-1, filled grain percent, and harvest index were superior in T4 than for other treatments. The maximum grain yield (7.93 ton ha-1) was observed in T4, followed by (7.03 ton ha-1) T2 and (6.36 ton ha-1) T3 treatments and the minimum grain yield (5.71 ton ha-1) was produced under T1 conditions. According to the results of this study, the application of compost reduces the number of unfilled grain per panicle compared to the control. Therefore, it is necessary to apply organic materials such as compost, which is cheaper than chemical fertilizers and which promotes the recovery soil nutrients. Application of compost increases the yield of rice grain from 11 to 39% compared to the control.
