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Remedial fertilizer in response to drought
Affected by the high proportion of late-planting plots and droughts, the current situation of wheat seedlings in some provinces is smaller leaf age, fewer tillers, and increased proportion of three types of seedlings. The overall seedling quality is worse than that of the previous year, and drought also affects the emergence of rapeseed. And Qi Miao. All localities should strengthen the guidance of classification, pay close attention to field management, and strive to promote the transformation of wheat, rape and other seedlings. Because seedlings supplement fertilizer to promote strong seedlings. For wheat fields that have not been treated with basal fertilizer or with insufficient amount of basal fertilizer, Miao Miao or tiller fertilizer should be supplemented as soon as possible to ensure that Miao Miao fertilize 9–10 kg of pure nitrogen per mu, and promote leaf production and tillering. Fertilizers with ternary compound fertilizer and urea are appropriate to ensure that the phosphorus and potassium fertilizers have a base recovery ratio of 5:5, promote rooting, long-term growth, and enhance the ability of plants to resist cold, and avoid the decline in cold resistance caused by single use of urea. 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 fields with large straw returning fields, the trend of falling yellow and stiff seedlings was found, and 5-7 kg of urea can be supplemented. The amount of fertilized wheat during the jointing stage of green growth can be appropriately reduced. In late-planting and late-planting weak seedlings and unbalanced rapeseed fields, Miao Fei should be applied early, applying 7.5 kilograms of urea 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. Warming up and weed regulation. Generally, weeds must be selected for control of more than 450 per square meter of weeds and more than 90 broad-leaved weeds per square meter. 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.