Recently, technical staff of the Wuqiao County Bureau of Agriculture conducted a pre-winter study of the wheat fields. The result was that the overall wheat performance this year was not as good as last year. The general performance of the group was small, the individuals were weak, the development was late, the damage was heavy, and the onset was early. The main reason was that Caused by bad weather.
This winter has become cold and cold. Since November 6th, it has been rain, snow, fog and haze, and even sunshine has not seen sunny days for more than 20 days. At that time, the wheat was in the 3-leaf stage and it was progressing to the tillering stage. Seedlings were being raised by themselves. To heterotrophic growth and development stage (that is, weaning period), we have encountered long-term rain, snow, low temperature and other illegible weather, wheat field high humidity and low temperature, soil adhesion, poor permeability, is not conducive to the growth of wheat seedlings. The performance of the seedlings is slow growth, late growth, few tillers, slim seedlings, yellow leaves, little roots, and no secondary roots. Wheat can not normally absorb water and nutrients. Not only does the wheat seedling lack nutrients to form weak seedlings and yellow seedlings, it also causes the occurrence of root rot.
In view of this year's situation, the following measures should be taken:
1. Strengthen the management of winter wheat fields and prohibit winter wheat grazing.
2. Cover fertilizer antifreeze. For wheat fields with weak seedlings and heavy freeze damage, they can cover the wheat field with miscellaneous fertilizers or sprinkle wood ash when they enter the winter to protect the earthworms, keep warm, prevent cold and reduce frost damage.
3. Early management of early-onset, and strive to early spring and more labor, improve the spike rate. For a type of wheat field with frozen and dry wheat leaves, when chilled in the next spring, buckwheat crops are generally carried out to increase the ground temperature by 3°C～4°C, and to promote the early return of green seedlings to young crops. On the basis of early management through early management, supplement nutrition, spray foliar fertilizer, you can spray 1% ~ 2% urea water, or 300 times potassium dihydrogen phosphate solution, if you continue cloudy, you can in the foliar fertilizer 300 times more sugar in the increase in carbohydrates. For wheat fields with late sowing, late emergence, and single-handed wheat fields, no pods, less roots, thin and weak seedlings, yellow leaves, or root rot, early spring can be sprayed with foliar fertilizer. Ye Jiamei foliar fertilizer (repellent agent) can be used 750 times. Liquid + chlorothalonil 1000 times solution + 300 times potassium dihydrogen phosphate solution + 300 times the sugar, spray 2 ~ 3 times, the interval is 7 days. Promote the early return of young wheat seedlings, rapid development, and more labor, and strive to mu effective panicles.
4. Apply top-dressing 2 times to achieve "one promotion, two preventions, and three increases." In the early spring, when the green fertilizer is applied, the fertilizer is sprayed in the first time, in addition to timely spraying of foliar fertilizer to supplement nutrients, to promote the early return to green, quick return to green, more labor, prevent de-fertilizer, prevent disease, in the middle and later stages of the water and fertilizer management. In the jointing and flagging period, in order to prevent premature decompensation of fertilizers, topdressing and watering should be carried out in time to increase the number of panicles, grains, and grain weight. Urea can be used to recover 10 kg of urea per mu. When drought occurs, water and fertilizer are combined. Water after the first fertilizer. If pests and diseases occur, "one-spray comprehensive prevention measures" can be carried out to eliminate various pests and diseases and win large harvests of wheat.
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