Traditional Culture Encyclopedia - Weather inquiry - Weather output
Weather output
The yield of wheat will be affected by weather conditions. Adequate rainfall in the early stage is beneficial to the greening and tillering of wheat, but in the later stage of growth, the humidity in the field increases, which is also very beneficial to the occurrence and spread of diseases and prone to lodging. Just like many friends, when watering, water is enough at jointing stage, and water is not watered at flowering stage and filling stage. The main concern is that when there is more water in the later stage, the probability of disease is relatively high, and the production will be reduced if the prevention is not timely.
Then in the jointing stage of wheat, the continuous rainy weather is not only beneficial to the growth of wheat, but also can prevent and control diseases including pests and diseases, which may be a bumper harvest year. Wheat scab and rust are diseases with serious yield reduction, and the occurrence of these two diseases will be affected by weather conditions. Wheat rust is more serious and easy to occur in a large area in the case of continuous low temperature and heavy rain in spring. Stripe rust has symptoms on leaves, leaf sheaths, stems and ears, and the damaged leaves and stems are yellow.
Wheat scab is also a climatic disease, which occurs seriously in places with much rain and high humidity in the field. From seedling stage to stem base, white ear symptoms finally appeared.
For the prevention and control of wheat diseases, the choice of chemicals is one thing, and it is important to have a sense of prevention in advance, so that it is easy to prevent and control even if the disease occurs later, and to avoid the situation of out-of-control spraying. The first is the choice of chemicals. Several kinds of chemicals used for diseases are similar, so they can be sprayed together. Wheat triazolone, tebuconazole, etc. Can be used for rust prevention and control. At the onset, the drug was taken twice in a row, with an interval of 7- 10 days. Difenoconazole and pyraclostrobin can control wheat scab.
Take medicine to prevent wheat from jointing. In addition to drugs, some foliar fertilizers, such as potassium dihydrogen phosphate, amino acids or urea, can be added. Because wheat needs some nutrients to restore growth after the occurrence of diseases, spraying some foliar fertilizers can promote the normal growth of wheat. Fertilizer was applied at jointing stage and booting stage of wheat, and nitrogen fertilizer and potassium fertilizer were commonly used to promote wheat growth. In the management after jointing and booting stage, farmers should pay attention to the prevention and control of pests and diseases, especially in this year's continuous rainy days, not only to prevent the cold in spring, but also to prevent diseases.
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