Straw full amount to field for wheat technical processes can be summarized as "the rice harvest → sync grass clippings → even throw → Sashi Ji fat → Stubble Field → uniform sowing wheat seeds → On entropy cover seed (or a small tractor to open moisture after cover seeds) → scenting water → timely sowing all seedlings "process for the implementation of large farming" mulching rice harvest → → synchronization → Sa Shiji uniform dispersal fertilizer → → stubble field uniform seed sowing wheat seeds → cover repression (disposable or mechanical homogenizer sowing drill repression) → → natural moisture timely open emergence (small, flat terraces, water irrigation ditch to put a cellar). " Around "to be chopped fine linen to be uniform, spin buried deeper, to the real soil," the technical requirements, the amount of straw to field full of wheat seed specific technical points are as follows: First, chopping should be fine, throwing and spreading: the rice harvesting machine must be equipped with a chopping and dispersing device, so that the straw is chopped into 5 cm when harvested, and evenly thrown in the field, eliminating the artificial linen, while leaving The height is less than 10cm. If it is a large farmer who uses old-fashioned shredders without throwing devices, because the straw is ridged, you can use the cover-seed machine to take a mechanical cloth. Second, the application of fertilizer, sputum and returning to the field: according to 45% per mu, 60 kg of compound fertilizer + 15 kg of urea, or 60-70 kg of urea-specific formula fertilizer per mu, about 15 kg of urea, applied to straw (with straw maturity) The agent is mixed with 4 kg per acre as a base fertilizer. Then use a medium-sized tractor with more than 75 horsepower to carry out rotary tillage and return to the field, and the depth of the buried grass should reach 16 cm or more. The addition of urea to the base fertilizer is to provide straw to absorb nitrogen from the soil during the decomposition process of the straw. Third, evenly spread the wheat seeds, open the cover seed: the large-area farmer's wheat per acre planting amount, about 3 kg more than when the straw is not returned to the field, try to plant at the right time, adjust the seeding amount according to different planting period; When it is fully mature, it is harvested, so the planting time is later (11/lower--12/initial), and the seeding amount is appropriately increased. After sowing, mechanically open the soil, cover the soil and cover the soil, pay attention to the three trenches in the field, communicate inside and outside, rain and live in the fields. If it is a large farmer, you can use the cover seed canopy with a roller behind to cover the seeds, suppress it, or use a drill to discard and suppress it at once, and then open it as required. Generally, it is about 8 feet wide. Note that due to the large number of birds such as crows during autumn sowing, the wheat is vulnerable to damage after sowing, and the large-scale farming advocates that the seed is also protected against bird damage after sowing. 4. Timely drowning and ensuring full seedlings: Large-scale farmers should drown in time after sowing. If there is moderate to heavy rain after 2-3 days of sowing, do not drown water. Only light rain can fill the ditch and release it. The purpose is to ensure that the wheat seeds absorb enough water without increasing the pulp, and promote the soil, straw, and wheat to bridge, ensuring that the whole seedlings, seedlings, and preserves are frozen. For large farming households, if the field is small, the field is relatively flat, the terrain is high, and the irrigation and drainage is convenient, it can also be filled with ditch water and one raft; but the field is larger, the field is uneven, and the terrain is relatively flat. Fields with low and long irrigation time do not advocate drowning, and slight inadvertent occurrence of wheat seeding and incomplete seedlings. This type of field is planted with spring wheat varieties. After mechanical cover, the seeds are exposed to natural rain. And the soil moisture germinated and emerged, even if there is no problem before and after the Spring Festival. After sowing seedlings, transfer to normal management, do a good job of winter pre-treatment, topdressing fertilization balanced fertilizer, heavy application of jointing panicle fertilizer, prevention and control of wheat sheath blight and a spray three defense.
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