ẢNH HƯỞNG CỦA LƯỢNG PHÂN HỮU CƠ VI SINH MULTI GERMANY ĐẾN SINH TRƯỞNG, PHÁT TRIỂN VÀ NĂNG SUẤT CỦA GIỐNG LÚA BC15 TẠI HUYỆN HẬU LỘC, TỈNH THANH HÓA

Abstract

The study was carried out in Hau Loc district, Thanh Hoa province in 2022 to investigate the effect of organic biofertilizer doses on the growth, development, and yield of rice variety BC15. The study included 4 treatments with 3 replicates: Treatment I (Control treatment) was applied with 10,000 kg/ha of manure, while treatments II, III, and IV used organic biofertilizer Multi Germany with the amounts of 800, 1,000, and 1,200 kg/ha, respectively. The study showed that treatment III, with 1,000 kg/ha of Multi Germany organic biofertilizer, yielded the highest number of filled grains per panicle at 149.8 and a yield of 74.62 quintals/ha. Treatment III achieved the highest economic efficiency with a net profit of 12,210,000 VND/ha and a VCR of 1.53.