Due to the high proportion of late-planting plots and droughts, the current situation of wheat seedling performance in our province is that the leaf age is younger, the tillering is less, and the proportion of three types of seedlings is increased. The overall seedling condition is worse than that of the previous year, and the drought also affected the rapeseed. Emergence and Qimiao. All localities should seize the favorable opportunity before wintering, strengthen guidance on classification, and pay close attention to the implementation of field management measures, in an effort to promote the transformation and upgrading of wheat and rapeseed. Drought-resistant seedlings, seedlings to make up for shortages to ensure that the drought-fed wheat fields before winter irrigation, water, fertilizer, to promote the restoration of growth and root development, to prevent dry frozen seedlings. For fields that have not emerged due to drought, irrigation or watering should be started as early as possible to promote emergence and seedling growth. For wheat fields where seedlings are not fully emerged due to drought and the basic seedlings are insufficient, they must be replanted as soon as possible, or they must be replenished. For the rapeseed field that lacks seedlings and ridges, we must do a good job of planting seedlings as soon as possible. For seedlings supplementing fertilizers and promoting strong seedlings for young wheat fields that have not been treated with base fertilizer or base fertilizers, supplement seedlings or tillers as early as possible to ensure that the base seedlings will be given enough 9–10 kg of pure nitrogen per mu to promote leaf production and tillering. , to lay the foundation for strong seedlings and spikes. Fertilizers with ternary compound fertilizer and urea are suitable to ensure that the phosphorus and potassium fertilizers have a base recovery ratio of 5:5, promote rooting, long pods, and enhance the ability of plants to resist cold, and avoid the use of urea alone to reduce the ability to resist cold. For first- and second-grade wheat fields suitable for proper sowing, appropriate basic seedlings, adequate base fertilizers, normal growth, and relatively sufficient population, no topdressing and no waxing or returning of green manure should be applied at present, so as to restrain the occurrence of invalid tillering, focusing on spring After the jointing stage of wheat replanting jointing and booting fertilizer. For the wheat field with large amount of rice straw returned, it was found that there was a trend of falling yellow and stiff seedlings, and 5-7 kg of urea could be supplemented to promote the transformation and balanced growth of the seedlings. The amount of fertilization during the jointing stage of wheat was appropriately reduced. In late-seeding wheat fields cultivated in late sowing culms, as long as the basic seedlings are sufficient (300,000 to 350,000 per mu in the Huaibei region and 200,000 to 250,000 per mu in the Huainan region), the amount of nitrogen applied to the seedlings should be controlled, and the amount of nitrogen applied to seedlings can be considered as seedlings. Strong growth in the winter wheat to jointing period, a small amount of balanced relay fertilizer, reserved space for replanting jointing and panicle fertilizer. For late-seeding weak seedlings, wheat fields with a small number of basic seedlings should be combined with “work promotion and fertilizer promotion†to promote transformation and upgrading of the seedlings. In late-planting and late-planting weak seedlings, red-frozen seedlings, and unbalanced rapeseed fields, dry seedlings should be applied, and 7.5 kg of urea should be applied per acre, or “catching yellow ponds to promote balance†to promote transformation of the seedlings. In the hilly areas and rapeseed high-yield fields, special attention should be paid to the application of boron fertilizers. In addition to grabbing warming, chemical regulation and control of general grass weeds more than 450 per square meter, broad-leaved weeds in more than 90 per square meter must be selected to prevent the use of drugs. Grasp the sunny day medication with daily average temperature above 5°C, ensure that there is no low-temperature frost weather below 0°C within 7 days after treatment, and improve the elimination effect to avoid phytotoxicity. Wengchang wheat that is chemically regulated in autumn sowing without chemical crops, rapeseed fields with long growing tendency in early planting and paddy field (rice) fields in paddy fields, should be used to control warming before winter Agent to achieve the purpose of promoting phlegm, promoting roots, dwarfing and freezing. Supporting ditch system, anti-staining and anti-freezing, excavate the “triple ditch†inside and outside the field, and open the horizontal ditch and ditch. Strengthen the post-broadcast coverage and repression work on the cultivation of wheat and rape fields.
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