Active disaster response is an important experience in the wheat harvest in our province. In the production of wheat, we must establish a full-scale awareness of disaster prevention and mitigation, and lay a good foundation for disaster prevention from the autumn broadcast.
Seed treatment, disease prevention and strong seedling
In view of the occurrence of wheat seedlings and soil-borne diseases, the corresponding medicines are used for seed dressing treatment; the early-season wheat can also be mixed with the control agent to promote rooting, hairpin and strong seedlings. For the control of unpicked seeds, there are prosperous wheat fields before winter and early spring, and measures such as suppression or spray control are adopted to moderately control the growth.
Resistant seeding
In the case of drought and drought in wheat in the Huaibei and Hilly areas, measures should be taken to rush and smash. For rice bran wheat, the focus should be on preventing excessive soil moisture. In the later stage of paddy field, it is necessary to drain the field in time. Especially during the continuous rainy weather during autumn sowing, it is necessary to increase the paddy ditch in time to create a suitable soil moisture, and timely grab and grab. Sowing progress. For example, if the harvest of rice is delayed, the soil moisture is large, and the operation of the machine is difficult, the no-till sowing, shallow rotary tilling, slab live or rice field can be used to speed up the planting progress. The rice field and the straw are used to cover the whole planting method. The Suzhong and Huaibei areas should be as suitable as possible. The rice seeding should be carried out within 1 week before the rice harvest. When the rice is harvested, it is ensured that the grass is well-distributed and placed in place. 3 leaf 1 in front of the heart to do a good job in fertilization, removal, trenching and soil management. Rice bran wheat should be avoided in the case of continuous rainy weather, and it is better to delay it properly, and to ensure the quality of the seeding as much as possible. In addition, in the case of continuous rainy and late broadcast, on the basis of excluding the water of the field, it is possible to actively test and demonstrate the anti-reverse seeding techniques such as germination and no-till.
Supporting ditch system
“A set of ditch in the wheat field, from the species to the harvest†is an important guarantee for the high yield and stable yield of wheat in Huainan. When the lyrics are suitable after the sowing, it is necessary to open the ditch in time, and excavate 1 vertical ditch every 3 to 4 meters. The width of the ditch is 20 cm and the depth is 20 to 30 cm. Each side of the field is traversed by 2 to 5 m. The longer field will open a waist groove every 50 meters, the width of the groove is 20 cm and the depth is 30 to 40 cm; the head of the field is required to be 25 cm wide and 40 to 50 cm deep to ensure the communication between the inside and the outside. . The slab seeding or returning grass field can increase the ditch density and depth, increase the amount of soil taken by the ditch system, and cover the glutinous surface to prevent dew.
Properly suppressing coverage, antifreeze protection
Huaibei dryland wheat and straw returning rice bran should be moderately suppressed after sowing or before winter to improve the ability to protect the frozen and prevent winter. Rice bran wheat, especially plate stalk live and paddy field wheat, should be added with soil fertilizer or increased gully and straw cover.
Scientific division
It is the most effective way to control the weed damage in wheat fields after the sowing. The time to check the grass before the seedlings is limited, the effect is relatively poor, it is necessary to pay attention to the grass phase separation, select the "cold tail warm head" when the temperature is appropriate, avoid the cold wave before the advent, to prevent "freeze damage" occur.
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(Source: Jiangsu Agricultural Technology Extension Station)
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