Overwintering cultivation techniques of peas in open field

The protein content is high, accounting for 22% -24% of the grain weight, and is rich in a variety of essential amino acids, as well as fat, carbohydrates, minerals and carotene, etc., is the high-quality vegetables that the masses like. The open field cultivation of peas in our county is generally overwintering with seedlings, and harvesting begins from April to late May of the following year. The main cultivation techniques are as follows:

First, use elite varieties. There are many varieties of pea suitable for promotion in our county, and the early mature dwarf upright hybrid pea Zhongpe 4 and Zhongpe 6 are better.

2. Fine land preparation and sufficient base fertilizer. Avoid pea crops. Before sowing, the soil should be carefully prepared, the border should be prepared, and the base fertilizer should be applied. Generally, 800-1500㎏ of pig and cow pen dung and about 25㎏ superphosphate are applied per mu.

3. Sowing in time and planting in narrow rows. Winter sowing peas are generally sown from late November to early December, generally using hole sowing, row spacing 33㎝, plant spacing about 17㎝, sowing 2-3 seeds per hole, 6-8㎏ per mu, covering 3-4㎝ . Before sowing, pour the bottom water to keep the land moist. After sowing and before emergence, rat poison should be placed in the field to prevent rat damage.

4. Strengthen field management. Seedlings should be cultivated and weeded 2-3 times. That is to say, when the seedling height is 5-8㎝, the first middle cultivation is carried out, which is a little deeper, and it is suitable to hoe the stubble land. After emergence, the supply of water and fertilizer should be controlled so as to overwinter with small seedlings, which is not susceptible to freezing. After spring returning to green, combine the dense seedlings in the middle cultivating room, and apply the seedling lifting fertilizer once before setting up the support, top dress the fertilizer 1-2 times after the pods (hole application), and apply the ternary compound fertilizer 5-10㎏ each mu. In case of heavy rain in spring, the trench must be drained in time to prevent staining.

5. Prevention and control of diseases and insect pests. Pea diseases mainly include downy mildew, powdery mildew, brown spot disease, etc., can be sprayed 2-3 times with 50-fold metalaxyl or 90% ethoxyaluminum 500-600 times solution, and can also be carried out with pesticides such as carbendazim and thiophanate Prevention. Pea pests mainly include aphids, worms, leaf miners, etc., which can be controlled by spraying 20% ​​deltamethrin 2000-2500 times.

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