KẾT QUẢ THỬ NGHIỆM MỘT SỐ GIỐNG ĐẬU TƯƠNG MỚI TẠI CAO BẰNG
KẾT QUẢ THỬ NGHIỆM MỘT SỐ GIỐNG ĐẬU TƯƠNG MỚI TẠI CAO BẰNG
Result on trial experiment of some new soyabean varieties in Cao Bang
The experiment was conducted in Cao Bang province in 2013 to identify some new suitable soybean varieties for spring crop under Rice land and Summer-autumn seasons for the highland. The experiment was designed in 3 farmer’s fields, one farmer’s field is a replication with full set of varieties. The density was 35 plants/m2 in spring season and 30 plants/m2 in Summer-autumn season. Fertilizers application was of 30N - 60 P205 - 60 K20, and 800 kg of Song Gianh microbialorganic fertilizer. The results showed that, two soybean varieties ĐT51, ĐVN14 have similar growth-duration with local soybean variety in summer - autumn season (84 days), but in spring season, their growth-duration was 5-7 days longer than local variety. Variety NAS-S1 has 7 days shorther than local variety in growth-duration in summer - autumn season but 3 days longer than local check in spring season. The average yield of three varieties DVN14, DT51, NAS-S1 ranged from 44,0- 66,0-69,0% respectively higher than local check in Summer-autumn season, and 113 - 189 - 170% higher than local check in spring season. Soybean varieties ĐT51, NAS-S1, ĐVN14 can be grown well in both - spring and summer - autumn seasons in Cao Bang province.