How to film peanut cover onion efficient cultivation experience

First, sowing onions around August 25 in the first year of raising onion seedlings (0.05 mu of seedlings per mu of onions and 0.25 kg of seeds are needed). 3 days before sowing, 25% herbicide was used to control weeds in the seedbed, and attention was paid to the control of underground pests at the seedling stage. Before freezing, dig a false planting ditch 50 cm wide and 20 cm deep near the seedbed (covered with a layer of sand), bundle the onion seedlings into bundles, plant them densely in the ditch, cover the upper part with fine sand and cover with straw to prevent the cold wind from entering the frozen onion seedlings.

Second, interplanting 1, ridging and fertilizing. If you use plastic film peanuts to cover onions, you can choose the land with loose soil and watering conditions in the early spring of the following year, make ridges with soil moisture width of 80 meters 90 centimeters and Mesa width of 65 centimeters, and apply high-quality crude fertilizer 4000,000 kilograms, diammonium phosphate 25 kilograms, potassium sulfate 10 kilograms, zinc sulfate 1 kilograms along with ridging. If interplanting garlic, ridging should be done before winter (the method is the same as interplanting onions). However, due to the strong wind in winter and spring, it is difficult to keep the ridge as it is, so pears should be used to support the ridge again before sowing in early spring. 2. Transplant onions or sow garlic at the right time. Cover the film in time after sowing garlic in early March of the following year, or cover the film again a few days before the Spring Equinox. If interplanting onions, cover the film before and after the vernal equinox, then punch holes and inject water for planting, but no matter garlic or onions, they should be planted in the middle of the ridge, each ridge planting a row. The distance between garlic plants is about 8 cm, about 8800 plants per mu, and the distance between onion plants is 10 cm, 12 cm, and 6000 plants per mu (the field management of onions and garlic is the same as in the field). 3. sow peanuts at the right time. Jiyou 4 and Haihua 1 with high yield, disease resistance and large fruit type should be selected. April 15-20 in onion line, or garlic line on both sides of the film drilling two rows of peanuts, two grains per hole, hole distance of about 16 cm, about 800 holes per mu. 4. Breaking the membrane and releasing seedlings in time. Prevent high temperature burning of seedlings in the film. Third, control diseases and insect pests 1. Garlic and onions mainly pay attention to the control of root maggots. The specific method is: in the middle of May, the root was irrigated with 75% phoxim 500x solution or 20% chloroma EC 2000 times solution. 2. Peanuts are mainly used to control underground pests. Before sowing, 50% phoxim EC is used to treat soil with 200 ml per mu to control underground pests. The second is to use 45% cypermethrin mu 25 Mu 25 Mu or 10% imidacloprid WP 10 Mu 20 g / mu to control aphids twice. In the middle of July, carbendazim and topiramine were sprayed to control peanut leaf spot twice. Fourth, to prevent the growth and premature senility of prosperous peanuts, when the plant height is more than 35 cm at the end of flowering, and the average of 12 nodes of the first pair of lateral branches is 5 cm, the foliar surface can be sprayed with Bq50-70 grams per mu and 60ml per mu with water. In order to prevent peanut from fattening and premature senescence in the middle and later stage, 0.2 Mel 0.3% potassium dihydrogen phosphate or 2 Mel 3% superphosphate filtrate plus 1% urea can be used to spray the leaf surface 2 Mel 3 times.