NGHIÊN CỨU ẢNH HƯỞNG CỦA PHƯƠNG PHÁP BÓN PHÂN SILIC SILICON DIOXIDE ĐẾN SINH TRƯỞNG, PHÁT TRIỂN VÀ NĂNG SUẤT CỦA GIỐNG LÚA HĐCM TẠI HUYỆN NGA SƠN, TỈNH THANH HÓA

Abstract

Study on the effects of silicon dioxide silicon fertilization method on the growth, development and yield on growth and yield of rice variety HDCM in Nga Son, Thanh Hoa province. The experiment was conducted in 2 seasons: Spring and Summer. The experiment was arranged in complete randomized RCB with 3 treatments and 3 replicates: treatment CT1 created 100% of silicon dioxide basal fertilizer, CT2 gave 60% and 40% supplementary fertilizer of silicon dioxide, CT3 was used as basal fertilizer of 30%, supplementary fertilizer of 30%. To develop branches to flowers with 40%. The results of the study proved that the treatment CT2 with the amount of silicon dioxide fertilizer being applied in 2 periods: Applying 60% (84 kg / ha); Applying tillering 40% (56 kg / ha) for the highest growth, development and yield. Total growing time in Spring crop is 128 days and the main crop season is 121 days, the plant height in Spring crop is 91.1 cm and in Summer season is 95.5 cm, the net yield in Spring crop achieved 6.71 tons/ha and the Summer season 6.4 tons/ha.
Keywords: HĐCM rice, growth, development, yield.