Plastic film cultivation technology
Rape cover film can effectively warm up and protect the growth, promote growth and development, enhance stress resistance, and achieve high yields. The main planting modes include membrane side, membrane type, and membrane type. Among them, the film side is the main type, the mulching film on the mulching side of the wheat film side of the mulching film, and the rape planting in the groove.
The technical points are fine soil preparation. The basal fertilizer is applied to the flat land with a flat topography, deep soil and fertile soil. Deep plowing before the storm, after the rain in time to collapse, combined undulating, there is rain before sowing, squatting; when there is no rain and no rain, rolling rake rake up. Replanting basal fertilization, generally with 3000-5000 kilograms of high quality organic fertilizer, 50-70 kilograms of phosphate fertilizer and 2-4 kilograms of potassium dihydrogen phosphate.
Select good varieties, sowing the appropriate choice of cold-resistant, drought-resistant, disease-resistant high-yield and high-quality varieties. The suitable sowing period is generally 5-15 days later than the normal open field sowing time, and the film side type can use plastic film wheat seed drill to complete fertilization, ridging, filming and sowing. The sowing volume is about 0.3 kilograms per mu. Mechanical sowing can be mixed with 0.75-1.0 kilograms of fried rapeseed and mixed until sowing. If there is heavy rain after sowing, it is necessary to release the clamp in time to ensure the whole seedlings.
When the seedlings are settled in time and the seedlings are properly planted in close-packing, the seedlings shall be checked in time and the seedlings shall be removed. Usually 2-3 leaves during the seedlings, 4-5 leaf stage Dingmiao. In general, 120-1000 strains of mulei seedlings are in the cabbage variety.
Controlling prosperous growth and protecting the seedlings with wintering rapeseed mulching, although improving the water and heat conditions in the rhizosphere of rapeseed, it is also necessary to promote the cultivation of the rapeseed, the wintering of the soil, and the warming of the seedlings before wintering. Ensure safe wintering and prevent dead seedlings.
Strengthen comprehensive pest prevention and treatment For areas with serious underground pests, seed can be used in 0.3% carbofuran or 3911 EC, and 3911 granules can be used to treat 1 kg/mu of soil. After the emergence of rapeseed, 2.5% of Aldehyde powder or 1.5% of 1605 powder 1.5-2.0 kg per acre is used to control the yellow stripe. Immediately after emergence, seedlings were treated with 2.5% dichlorvos 1500 times or 90% trichlorfon 1000 times to control Pieris rapae and turnip leaf bees. After turning rapeseed green, use 2.5% methyl parathion powder or 1.5% 1605 powder to spray 2 kg per mu to control rape stem larvae. The early flowering period of rape combined with three sprays and two defenses with 0.2% boron fertilizer, 0.2% potassium dihydrogen phosphate, 2% urea and 40% omethoate, 40% sclerotia net or 50% carbendazim WP 1000 times liquid medicine Fertilizer, 50 kg per acre to control aphids and Sclerotinia, to increase the angle, increase grain, increase grain weight, prevent premature aging. The rapeseed was sprayed with 40% omethoate 1000-1500 times in time to control the aphid. For resistant aphids can be used 2.5% Fluococcus WP or Kaisoda EC 1500-2000 times to control, the effect is even more.
Appropriate harvesting, removal of residual film mulching rape to be exposed to a few days early rape, when about two-thirds of the whole field of pods appear pale yellow, the main sequence of most pods when the grain is dark brown harvest. After harvesting, they should be piled and cooked in time. After harvesting, mulching film can remove residual film in a timely manner in the fields that are no longer replanted to prevent soil contamination.
Size: Mix
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