Respons Pertumbuhan dan Produksi Beberapa Varietas Padi Gogo (Oryza sativa L.) terhadap Pemberian Pupuk Silika

Abstract

Rice is one of the main sources of food for the people of Indonesia. The productivity of upland rice is quite low in Indonesia by using superior varieties and silica fertilization is one alternative in an effort to increase productivity. This study aims to determine the growth and production response of several upland rice varieties to the application of silica fertilizer. This research was conducted in Pekan Bahorok Village, Bahorok District, Langkat Regency, North Sumatra (N 3º49'30.37'', E 98º 18' 9.50'') with an altitude of ± 106 meters above sea level, conducted from April to August 2023. This study used a factorial Randomized Group Design with two treatments, the first factor was the use of upland rice varieties: inpago 12 agritan, inpago 13 fortiz and odang, the second factor was the application of silica fertilizer: 0; 150; 300 and 450 kg/ha. Data were analyzed by analysis of variance, the significant variance was continued by using Duncan's Multiple Range Test at the 5% level. The results showed that the treatment of varieties was significantly different on plant height 2-8 weeks, number of tillers 4- 8 weeks, flag leaf area, number of panicles per clump, crown dry weight, root dry weight, grain weight per clump, grain weight per plot, number of filled grains per panicle and number of empty grains per panicle. The application of silica fertilizer has a significant effect on plant height 7 weeks after planting, number of tillers 4-8 weeks after planting, flag leaf area, number of filled grains per panicle and number of empty grains per panicle