Jiaoxuan No. 2 (soybean)
Jiaoxuan No. 2 fresh soybean is an excellent spring soybean variety selected by Shanghai Jiaotong University. After trial and demonstration, this variety has stable characters, good uniformity, uniform pod distribution, white hair and wide pods, plump grains and high proportion of three pods. Compared with Taiwan 75, sowing at the same time, the market is 10 days earlier, the economic benefit is good, and it is loved by farmers.
I. characteristic characteristics
Jiaoxuan No. 2 soybean is an early-maturing spring soybean variety, and the growth period of spring sowing is 75muri 80d. Limited podding habit, high 50--60cm, well-developed root system, stout stem, lodging resistance, oval leaves, red stem, fuchsia flowers, white pilose, 25 pods per plant, light yellow seed coat, navel light brown, micro-luster, 100-seed weight 35g, fresh pods green, good color, sweet taste, good palatability. Suitable for fresh sale and processing.
Second, the main points of cultivation
1. After the expansion of the area of fresh soybean in reasonable rotation, the area of continuous cropping increased, resulting in the imbalance of soil nutrients, serious root diseases and insect pests, weakening the nitrogen fixation ability of root nodules, reducing plant resistance and affecting quality and yield. Rotation of flood and drought, or crop rotation with melons and vegetables should be encouraged.
2. timely early sowing and early sowing Jiaoxuan No. 2 soybean has a short growth period, so it is suitable for double-film cultivation in greenhouse and small arch greenhouse in early spring. The sowing time can be from mid-February to mid-March, and fresh pods are generally harvested and listed in mid-May. Direct seeding in the open field is generally sown before and after the Qingming Festival, and the plastic film is covered after sowing, and the film is broken when 60% of the cotyledon top soil is broken.
3. Reasonable close planting Jiaoxuan No. 2 is an early-maturing variety, with 15000-22000 plants per square meter, row spacing 30cm, hole spacing 15--20cm, 2 plants per hole.
4. Fertilizer and water management fresh soybean likes fertilizer, should apply sufficient base fertilizer, increase organic fertilizer and phosphorus and potassium fertilizer, generally 667 square meters apply rotten organic fertilizer 2000kg, calcium superphosphate 50kg. Three-yuan compound fertilizer was applied once at podding stage, and 15kg was applied at 667m2, foliar fertilizer was also applied.
5. Check and fill the seedling in time after seedling emergence in the field management, shorten the seedling age as far as possible, do a good job of ploughing, weeding and ditching before closing, and irrigate "horse running water" to moisturize the soil in case of drought in the flowering and pod stage to make the grain full.
6. Disease and pest control good control of tigers and aphids at seedling stage, control of bean moth and heart-eating insects in later stage, and prevention and control of diseases such as virus disease and brown spot.
7. Timely harvest of fresh soybeans requires high commercial quality, and it is suitable to harvest when the pods are fresh and the beans are full.
- Prev
Beware of falling flowers and pods of soybean
The drop of flowers and pods of soybean is the main factor affecting the increase of soybean yield. in production, the rate of flowers and pods of soybean is generally about 45% and 70%. The most flowers fell at 5 days after flowering and pods fell at 15 days at 10 days after flowering. In order to increase the yield of soybeans, great efforts must be made to prevent flowers and pods from falling. 1. The reasons for falling flowers and pods 1. Poor ventilation and light transmission due to excessive planting density and poor planting technology, resulting in overgrowth and overgrowth.
- Next
Comprehensive measures to slow down the continuous cropping of soybean
In order to reduce the yield loss of continuous cropping to the minimum, we should avoid planting soybean in continuous cropping as far as possible, adhere to reasonable rotation, reduce continuous cropping and control continuous cropping. In the long run, the continuous cropping area of soybean should not be expanded indefinitely to avoid the decline of soil production capacity and the vicious circle. In the case of continuous cropping is inevitable, first arrange to meet the stubble planting, do not open the continuous cropping arrangement, and the continuous cropping can not exceed two years. In view of the reasons for the yield reduction of continuous cropping, we should focus on the regulation of nutrition and the control of diseases and insect pests.
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