How to manage winter wheat, winter wheat management techniques

How to manage winter wheat, winter wheat management techniques:

First, due to seedling system, classification management

Management of weak seedlings: For weak seedlings formed by late raining and insufficient accumulation of accumulated temperature, it is not advisable to topdress and water before winter to avoid lowering ground temperature and affecting seedlings. It can be used to shallowly loosen the soil, increase the temperature and protect the sputum, and focus on the application of fertilizer and water in the year of the jointing of the wheat. For late seeding and weak seedlings with poor quality of land preparation and stagnation, it can be suppressed in winter and early spring, and pressed after shallow pressure to warm and protect.

Management of strong seedlings: Due to different seeding bases, there are also many cases of strong seedlings. For wheat fields with poor fertility base and sufficient bottom, you can apply some quick-acting fertilizers to prevent the wheat from de-fertilizing and yellowing. Insufficient fertility, just because the early growth of the growth is still normal in the wheat field, to prevent the wheat seedling from becoming weaker and weaker, and early topdressing and watering, the general mu is about 5 kg of urea; the wheat field with good fat, good lyrical and timely sowing, Anyone who can reach the standard of strong seedlings generally does not have a topdressing before winter, but it must be cultivated and protected.

Wang Miao's management: wheat fields with high soil fertility, large amount of base fertilizer application, sufficient sensation, and early sowing date, the wheat seedlings are overgrown, the leaves are hypertrophy, the tillers are too fast, and the population density is too large. When the population exceeds 600,000, it is sprayed evenly with 20% Zhuangfeng An EC 25-30 ml and 50 kg per acre to control the growth of the wheat seedlings.

Second, timely winter irrigation, protect the seedlings for winter

In winter, it is windy and windy. Pouring wintering water can promote the development of wheat roots during wintering, consolidate the strong tillering of wheat seedlings, facilitate the differentiation of young ears, and prevent freezing damage to dead seedlings. At the same time, it plays the role of spring water in spring and prevents spring drought. Winter irrigation is generally carried out from late November to early December. After irrigation, it is necessary to cultivate in time to prevent the ground from cracking and killing the roots.

Third, early prevention of sheath blight

Wheat sheath blight is controlled when the pathogen is infested or not dyed. Generally, from late November to early December, 12.5% ​​of the fruit is 15g or 20% of triadimefon 75g plus 30-40kg per acre. .

Fourth, early chemical weeding

Before winter, the wheat seedlings are small and the grass seedlings are also small. At this time, chemical weeding is carried out, saving labor, saving time and medicine, and the effect is good. Generally, 7 grams of 75% superstar suspension agent or 75% of wheat straw light 10 grams of water plus 40 kilograms are used for spraying in sunny and windless weather in mid-December.

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