Jidou 10 (soybean)

Jidou 10 is a new early-maturing summer soybean variety bred by the Institute of Grain and Oil crops of Hebei Academy of Agricultural and Forestry Sciences using Velems / Line 7476 as material.

The growth period of this variety is about 93 days, with compact plant type, few branches and sub-limited podding habits. the main pods are on the main stem, the upper and lower pods are uniform, the plant height is 80 cm, and the bottom pod height is 15-20 cm. This variety has the same maturity and good yellowing, so it is suitable for mechanical harvest. Determined by the grain quality supervision, inspection and testing center of the Ministry of Agriculture, the dry base crude protein content is 42.8%, and the fat content is 20.73%, with a total of 63.53%. The seed coat is golden and shiny, and 100 grains weigh 22 grams.

Jidou 10 generally has a yield of 150,200kg per mu, with a maximum of 300kg. Participated in the regional trial of summer soybean in Hebei Province from 1990 to 1991, the average yield per mu was 134.96 kg / mu and 154.70 kg / mu respectively, 17.36% and 13.52% higher than that of Jidou 6, which reached a very significant level. In 1991, he participated in the production demonstration of Hebei Province. The average yield per mu was 139.4 kg, 9.4% higher than that of Jidou 6, ranking first. It was planted in Dezhou area of Shandong Province from 1994 to 1996, the general yield per mu was 200,250kg, and the highest yield in the field was 305.3 kg / mu. Field planting showed disease resistance (mosaic virus resistance, cyst nematode disease), lodging resistance, drought and waterlogging resistance.

Jidou 10 has wide adaptability. At present, it has popularized an area of 1.25 million mu, increased soybean production by 31.25 million kg, and created economic benefits of 125 million yuan. It is estimated that the maximum annual extension area can reach 2 million mu.

Institute of Grain and Oil crops, Hebei Academy of Agricultural and Forestry Sciences

The region and technology are suitable for planting in Huanghuai-Hai summer bean areas such as Hebei, Henan, Shandong, Beijing and Tianjin, as well as Yunnan and Jiangsu.

Cultivation rules:

1. Prepare to dry seeds before sowing: drying seeds can improve seed germination rate and germination energy, which is beneficial to the whole seedling. Application of sufficient base fertilizer: for plots with soil preparation conditions, 10 kg of diammonium phosphate and 5 kg of potash fertilizer should be applied before sowing.

two。 Sowing and planting style: generally, it is better to plant with "two densities and one sparse" big and small ridges, or 30cm to 40cm and so on. Sowing date: summer soybeans strive to sow before June 25. Sowing rate and seedling density: the suitable density of Jidou 10 is 20000 ~ 30000 plants, the general sowing rate per mu is 50.7 kg, and the plots with good soil fertility, water and fertilizer conditions should be sowed less.

3. Seedling management check seedlings: timely check seedlings after emergence, broken ridge more than 7 inches (23.3 cm) should be timely replanting or bud seedling transplanting, watering after planting. If the number of seedlings is too large, it is necessary to keep small seedlings and large seedlings in the first compound leaf expansion stage, so that the plant spacing is uniform and crowded seedlings are prevented. Intertillage weeding: the plots with good effect of closed herbicides can be ploughed and cultivated for 1 or 2 times before the ridges are not sealed; if the plots are inverted without chemical herbicides, the fourth compound leaves should be ploughed for 2 times before the ridges are closed to remove weeds in the field. Water and fertilizer: in the land where the application is the base fertilizer, there is generally no need for topdressing and watering at the seedling stage; when the seedling growth is seriously affected by drought, it should be watered in time; if there is no base fertilizer, especially in the land with poor soil fertility, it is necessary to open a ditch to apply compound fertilizer of 10 kg / mu. Prevention and control of diseases and insect pests: use 2.5% trichlorfon and 2% carbaryl powder, spray about 2 kg per mu, or use poisonous baits such as methamidophos to control bridge insects, aphids and other ground pests and underground pests such as ground tigers and grubs.

4. Management of fertilizer and water at flowering and pod stage: 10-15 kg urea was applied at flowering stage according to soil fertility and field growth. Pest control: the main pests are bean Tiane, bridge worms, cotton bollworm, etc., aphids and red spiders are easy to occur in dry weather. Spray with 1000 times of 7% malathion EC, or 2.5% trichlorfon, or 2% carbaryl powder, 22.5 kg per mu, or use pyrethroids to control cotton bollworm.

5. The first is timely watering to meet the needs of bulging and filling; the second is spraying plant growth regulators to prevent premature senility; the third is to control pod flag, bean days, cotton bollworm and other hazards; the fourth is timely harvest.