Wheat key technology promotes high yield
The main constraints of dryland wheat production are seasonal drought and soil barrenness, especially spring drought. In spring wheat field management, we must focus on conservation and raising of earthworms. We must comprehensively prevent and control spring topdressing and pests and weeds to ensure the stable and high yield of dryland wheat.
Composting in the spring, promoting weak and strong. For the wheat field with insufficient base fertilizer and weak yellow seedlings, the combination of spring returning to green or light rain may be followed by applying 4 to 5 kg of urea per acre, or rinsing and digging furrow along a furrow and promoting weak seedlings to turn strong. For dryland wheat fields where the pre-winter group is too large and the soil fertility is relatively high, it is not suitable to top-dress fertilizer in the returning green season to prevent prosperous growth.
Rolling and lifting to prevent lodging. Early spring wheat rolling before and after greening can promote the development of wheat roots, improve wheat's own drought resistance, and can inhibit wheat stem length. "Mule in March, bucket of water." Rolling pressure should be combined with slashing, generally after the suppression of squatting, in order to achieve the purpose of Panasonic, lifting smashing, smashing, and warming. It should be noted that the rolling time should be before and after sunny noon, and should not be carried out in the cold wet morning.
Scratching soil, weeding warming. The wheat rose to the wheat field before the jointing season, and it can eliminate weeds, protect the soil and increase the temperature. When plucking, it is necessary to pay attention to the place and the system of seedlings. For late-seeding wheat fields and weak Miao fields, we should plan shallow shrubs to increase soil temperature and promote weak seedlings to grow strong; for Wangmiao wheat fields, we should appropriately take roots and cut off roots, control long seedlings, reduce ineffective tillering, and promote root shoot down. Change seedlings for strong seedlings.
Pest control, chemical weeding. Wheat rust, sheath blight, wheat bran and other diseases and pests should be well forecasted and controlled. Pay attention to chemical weeding during the return period. Special attention should be paid to strengthening the forecasting and prevention of wheat stripe rust, and continue to vigorously popularize the prevention and control experience of “accurate monitoring, reconnaissance with drugs, discovery of one point, control of oneâ€, early detection, and early prevention and treatment.
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