NGHIÊN CỨU XÁC ĐỊNH MỘT SỐ BIỆN PHÁP KỸ THUẬT TRỒNG XEN CANH ĐẬU TƯƠNG VỚI MÍA TẠI THANH HÓA
NGHIÊN CỨU XÁC ĐỊNH MỘT SỐ BIỆN PHÁP KỸ THUẬT TRỒNG XEN CANH ĐẬU TƯƠNG VỚI MÍA TẠI THANH HÓA
Research to identiry some technical measures for intercropping soybean with sugarcane in Thanh Hoa province
From research results, suitable sowing density and nitrogen fertilizer rate for soybean ĐVN14 in Tho Xuan, Thanh Hoa are determined as the follows: 25 plants/m2 and rate of nitrogen fertilizer: 15 kgN/ha. This give the highest real yield of 11.6 quintals/ha, which is 3.7 quintals/ha higher than the controlcao with plant density of 15 andt the application of 10 kgN/ha. For soybean variety ĐT26 at Thach Thanh, the fertilizer application of 15kg N/ha the sowing density of 20 plants/m2 gave the best value on growth and development, the lowest pests and disease infection and the highest practical yield (11.69 quintals/ha), significantly higher (P 95%) as compared with the yields of the remaining trials.