Improvement of American high-yield soybean Kaidou No. 4
Kaidou No. 4 is a new soybean variety with high yield and good quality, which was systematically bred by Zhengda Company of Kaifeng, Henan Province under the support of State Bureau of Foreign Affairs and introduced from America. Limited podding habits. Plant height 75 cm. Each plant has 6 - 8 branches. Leaves ovoid. White flowers. Seeds yellow, brown umbilicus, oval. 100 grains weigh 15.6 grams. It contains 42.1% crude protein and 2.03% fat. Mid-ripening, summer sowing, growth period 110 days. The outstanding characteristics are pod density; high yield, 200~400 pods per plant, generally 250~300 kg per mu, up to 350 kg. Lodging resistance. No pod splitting. Strong resistance, excellent quality, fat content 1.5 percentage points higher than ordinary soybeans, especially suitable for industrial processing.
It has been demonstrated and popularized by the State Bureau of Foreign Affairs as an achievement of agricultural introduction. It has been introduced into 13 provinces and cities, and generally shows high yield. For example, Weishi County Science and Technology Commission promoted 1000 mu to increase 275~300 kg, 360 kg higher, 50~150 kg higher than local soybean yield, 100 yuan higher than planting corn income. The application prospect is very broad, and it is of great significance to increase farmers 'income and adjust planting structure. Especially, it can be used as seed popularization in recent 1~2 years, and the benefit is very high.
This can be sown in spring and summer. Suitable for summer sowing in early June, irrigation water before sowing to strive for a full seedling, 2.5 kg per mu of seeds, 1~ 13,000 seedlings, 30 kg compound fertilizer for early flowering. B, Mo and other micro-fertilizers are sprayed in combination with disease and insect control, and harvested in due time after full maturity.
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High-yielding soybean-- Jindou 34
1. The biological characteristics of "Jindou 34" soybean is 133-135 days from spring sowing to maturity in the middle of Shanxi Province, and the general year can mature around September 25. In Jinzhong, spring sowing plant height is about 80 cm, branches are generally 2-3, Rain Water sufficient years can reach 3-5, main stem 17-19 nodes, compact plant type, tough and sturdy stem, strong lodging resistance. Leaves oval, upper leaves
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Control of bacterial spot of soybean
Soybean bacterial spot is a common disease in soybean producing areas, which reduces the percentage of complete grains, 100-grain weight, quality and yield. The disease spot of the leaf is round at first, brown to dark brown, the disease spot expands, the center becomes black, the disease spot is not protruding, and the diseased leaf is easy to fall off. The disease spots of stems and pods are brown and round, and later become spindle-shaped. The seed surface bread is covered with a layer of bacterial mucus, which often appears at one end of the seed and is shaped like "frog eyes". The diseased grains shrunk and the pathogen overwintered on diseased leaves, culms, pods and seeds.
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