Performance of Hybrid and Inbred Rice Varieties under Vermicast Application

Abstract

This study aimed to evaluate the performance of hybrid and inbred rice varieties using vermicast as fertilizer. Soil chemical properties, plant growth, and yield performance were observed and tested for significant differences. The experiment employed a Randomized, Completely Design-Factorial layout with three replications of 30 plots. Six check plots were also prepared as farmers fertilization practices for rice production. The total experimental area is 468 m², with a planting distance of 20m x 20m and a total plant population of 5,376. Factor A involved six rice varieties, and Factor B included varying vermicast levels. Growth parameters and yield components were assessed, and data were analyzed using two-factor ANOVA and LSD test. Results indicated significant differences among rice varieties in days to flowering, days to maturity, plant height, and grain yield per hectare. However, no significant differences were observed in productive tillers, filled grains, and thousand-grain weight. No interactions were observed between rice varieties and vermicast levels. Soil analysis revealed an increase in available phosphorus but a decrease in total nitrogen and potassium content in the soil after the experimental study. Based on the observed results, the study recommends utilizing the NSIC Rc314H variety in rice production with a vermicast application rate of 5 tons per hectare for better crop yield. Future research on vermicast application in lowland rice is highly recommended for more conclusive findings and valuable insights into optimizing rice cultivation with specific varieties and application for improved yield and sustainable agricultural practices.