The main constraints to dryland wheat production are seasonal droughts and poor soils, especially in spring. Spring wheat field management should focus on conservation and mites, and spring topdressing and comprehensive prevention and control of pests and diseases can ensure stable and high yield of dryland wheat.
Spring dressing, weakening and strengthening. For wheat fields with insufficient base fertilizer and weak seedlings and yellow seedlings, it can be combined with spring returning green or light rain after simmering and topdressing. Each acre can be applied with 4~5 kg of urea, or stalking ditch and ditch to promote weak seedlings. For dryland wheat fields with large pre-winter groups and high soil fertility, it is not advisable to topdress during the greening period to prevent prolonged growth, and it is possible to use the rain to discriminate when the wheat is up to the jointing stage.
Roll it up and prevent it from falling. Rolling in early spring wheat before and after greening can promote the development of wheat roots, improve the drought resistance of wheat itself, and inhibit the growth of wheat stems. The scorpion in March, the bucket of water. The crushing should be combined with the slashing, generally it is first to suppress the sputum, in order to achieve the purpose of Panasonic, lifting, protecting and warming. It should be noted that the time for crushing should be around noon on a sunny day, and should not be carried out on a cold and wet morning.
Draw the loose soil, weeding and warming. When the wheat is raised to the jointing stage, it can be used to eliminate weeds, loose soil and improve the ground temperature. Pay attention to the ground and the seedlings. For late sowing wheat fields, weak seedlings should be shallow, increase soil temperature, and promote weak seedlings. For Wangmiao wheat fields, roots should be properly cut in the body, and long seedlings should be controlled to reduce ineffective tillers and promote roots. Change the seedlings into strong seedlings.
Control pests and diseases, chemical weeding. It is necessary to do a good job in forecasting and controlling pests and diseases such as wheat stripe rust, sheath blight, and wheat stubble. Pay attention to chemical weeding during the greening period. Special attention should be paid to strengthening the prediction and prevention of wheat stripe rust, and continue to vigorously promote accurate monitoring, bring drug reconnaissance, find a point, control a piece of prevention and treatment experience, early detection, early prevention.
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