1, crop selection

The intercropping of fruit crops should be dominated by the three modes of fruit trees—soybeans, fruit trees—faba beans, and fruit trees—potatoes.

2. Period and scope of intercropping

For 1-3 year old saplings, intercropping can be carried out. With the increase of age, the intercropping area should be reduced year by year, preferably 20-30 cm from the projection of the crown.

3, choose a good species

Soybean can choose Liao Xuan, 105, Japan No. 3, No. 5 seed. Broad bean can be used for Fengfeng No.4 and No.6 varieties. Potatoes should choose detoxified species, winter potato should choose medium-early-maturing varieties, big-spring potato should choose medium-late-maturing varieties, and autumn potato should choose medium- and high-late blight varieties to have -2.

4, fine soil preparation, full base fertilizer

Deep plowing between fruit trees and between plants is 25-30cm, 2000-3000kg per acre, 40-50kg calcium sulphate, and 5kg urea as basal fertilizer, crushed soil, fishing rod, and hoeing.

5, appropriate sowing, reasonable close planting

Soybean spring sowing in mid-February is appropriate. Summer sowing is appropriate from late May to early June. The amount of 10-15 kilograms per acre is used to plant 0.8-1.2 million holes with 2-3 plants per hole. Broad bean range from mid-October to mid-November is more appropriate, 30-35 kilograms per mu, plant spacing 16 cm 20 cm, planting 1.5-1.7 million. Early winter potato is sown in mid-October to late January. The spacing is 20-30 cm and 50-70 cm. The spring potato is planted from February to April. The spacing is 20-30 cm and 60-90 cm. The autumn potato is 7 Sowing from the end of the month to the end of August, the spacing between rows is 20-30 cm and 50-70 cm.

6, scientific fertilizer, quality and yield increase

Soybeans and broad beans are generally top-dressed twice, that is, early-stage seedlings. On the basis of adequate basal fertilizer, depending on the leaf color and growth of seedling trees, 10-15 kg of compound fertilizer may be applied per mu. In the middle and later stages, the grain fertilizer was applied once, and 5-10 kg of high-potassium compound fertilizer was applied per acre. Potatoes were topdressed twice. After emergence, seedlings recovered 10 kg/667 m2 of urea, and budding period was followed by 10-15 kg/667 m2 of potash fertilizer. Top dressing is combined with cultivating weeding and irrigation to give full play to the fertilizer effect.

7. Strengthen pest control

Soybean, broad bean diseases and pests mainly include red spot disease, rust, virus disease, and leafhoppers, cabbage caterpillars, and red spiders. Potato diseases and pests mainly include early blight, late blight, viral diseases, and aphids, and underground pests (goldworms, lands). Tiger, etc.) Based on the time and type of occurrence of pests and diseases, rational selection of carbendazim, thiophanate-methyl, metalaxyl manganese zinc and imidacloprid, avipid, A-dimensional salt and other pesticides for the appropriate control.

8, timely harvest

When soybeans and broad beans are used as fresh vegetables, they should be freshly picked and sold in stages at a time when the market is full and shiny. Potato stems and leaves appear yellow, withered, stems shrink easily with tubers, tuber skin aging can be harvested. Crop straw can be used as forage or combined with arable land to convert to the field to further improve the mature soil and fertility.

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