KẾT QUẢ NGHIÊN CỨU ẢNH HƯỞNG CỦA MẬT ĐỘ TRỒNG VÀ LIỀU LƯỢNG BÓN PHÂN HỮU CƠ VI SINH NĂM TỐT ĐẾN SINH TRƯỞNG, PHÁT TRIỂN VÀ NĂNG SUẤT CỦA GIỐNG CẢI BẮP F1 NHP 69 TẠI HUYỆN HOẰNG HÓA, TỈNH THANH HOÁ

Abstract

Study the considered the effect of plant density and dosage of microbial-organic fertilizer on the growth, development and Yield of F1 NHP 69 variety cabbage, the experiment was conducted at Hoang Hoa district, Thanh Hoa province, The experiment was designed in Split- Plot with 12 treatments and 3 replicates, the experiment combined three levels of planting density and four levels of dosages of microbial organic fertilizer, three planting densities were M1: 30,000 plants/ha; M2: 36,000 plants/ha and M3: 45,000 plants/ha; four dosage levels of microbiological fertilizer (H0: 500 kg/ha, H1: 1,000 kg/ha, H2: 1,500 kg/ha, H3: 2,000 kg/ha), The study result showed that the planting density and dose of microbial organic fertilizer could efficiently promote the development and yield capacity of NHP 69 variety of cabbage, The treatment of M2H2 (planting density of 41.000 plants/ha and application of 1.500 kg/ ha) obtained the best growth, development and yields, The outer stem height was 18.2 cm, the highest canopy diameter archieved 70.8cm, the number of outer leaves (28.9 lá) and the highest yield obtained the average of 49.7 tons/ha. However, the treatment M2H2 obtained the highest benefit because the payments of fertilizer was lower than the treatment M2H3. Therefore, Hoang Hoa district should choose the planting density of 36,000 plants/ha and 1,500kg/ha of microbial - organic fertilizer for cultivating F1 NHP 69 variety cabbage.
Keywords: Density, growth, development, productivity.