Wheat fields have different classification management A type of wheat field - strengthening the management of the jointing period First, spray Zhuang Fengan and other chemical control agents, shorten the first section of the base, control the growth of plants, promote the root bar, prevent late lodging. The second is to conduct fertilizer and water management at the beginning of the jointing of wheat. Combined with watering, it can recover 12 to 15 kg of urea per mu. The third is to apply 12 to 15 kg of urea per acre in the middle of the jointing stage to control excessive overgrowth of tillers, increase dry matter accumulation after anthesis, increase the duration of photosynthesis and the vitality of roots, increase grain weight, and obtain more high production. The second type of wheat field - strengthen the management of the rise period The focus of spring management is to consolidate the pre-winter delivery, promote the occurrence of spring delivery, and improve the rate of tillering of the tiller. Specific measures are: combined with watering, urea recovery of 10 to 15 kg per mu. The wheat field with a general level of fertility was top-dressed and watered in the early stages of wheat development; wheat fields with higher levels of soil fertility were top-dressed and watered during the mid-season. Three types of wheat fields - strengthen the management of returning to the green Three types of wheat fields are mostly late-seeding weak seedlings, management should be based on promotion. Specifically, appropriate nitrogen fertilizers and diammonium phosphate can be applied in the returning green period of wheat, and at the same time, watering can be combined to promote spring tillering to increase the number of mu spikes. It should be noted that in the booting stage of the jointing stage of wheat, additional nitrogen fertilizer is applied to increase the number of grains per spike. The management of Wang Miao's wheat fields is to spray regulators at the start of the crop to prevent late growth during childbirth. Second, Wang Miao, a wheat field without de-fertilization, should suppress the seedlings early in the spring to avoid excessive spring tillering. During the jointing stage, fertilize and apply 10-15 kg of urea per acre. Third, for wheat fields with de-fertilization, if the group is not large, it can be top-dressed and watered at the beginning; if the group is large, it can be top-dressed and watered in the middle stage. Antifreeze early action early and effective The cold-damaged wheat fields should be promptly remedied. Firstly, topdressing nitrogen fertilizers in time and promoting wheat production. The first top-dressing is carried out after thawing in the field, and 10 kg of urea can be applied per acre. This can be applied in open ditch and can be mixed with phosphorus fertilizer. The second time in the jointing stage of wheat combined with pouring and water saving, applying joint fertilizer, 10 kg of urea can be applied per acre. The second is that the wheat in the Jianghuai area should pay attention to the drainage of the ditch. For frozen wheat, more attention should be paid to the maintenance of the roots and their ability to absorb nutrients should be enhanced to ensure the restoration of leaves and the occurrence of new tillers and the nutrients needed to form the ear. The third is to strengthen the management of fertilizer and water in the middle and later stages to prevent premature aging. On the basis of the first topdressing, look at the growth and development status of the wheat seedlings. According to the situation, appropriate fertilizers can be applied during the jointing period or the flag-raising period to promote more large panicles and increase grain weight. The occurrence of “cold spring†needs to be prevented as early as possible to prevent the wheat from entering the reversal green jointing stage after the “springâ€. This period of time is due to the occurrence of frost damage due to cold waves. This situation occurs in late February, March and April in Hubei, Henan, Anhui, and Jiangsu. At most, specific measures can be taken to control the prevention and early spring irrigation and freezing prevention measures. The first is to moderately suppress the growth of excessively prosperous wheat fields, avoid premature jointing and reduce the cold resistance, and repression of seedlings in early spring is a better method for preventing freezing injury in spring. The second is irrigation prevention. Before the arrival of the cold in winter, watering can increase the moisture in the air of the formation to reduce the change of the ground temperature. At the same time, after the irrigation, the soil moisture increases, the soil thermal conductivity increases, and the soil temperature increases, which effectively mitigates the occurrence of frost damage. Low-temperature chilling needs to be preceded by irrigated wheat growing into the booting stage, and the damage caused by low temperature is called low-temperature chilling injury. Low-temperature chilling causes delayed heading of wheat or empty spikelets of white spikes, or empty spikelets in the middle of the wheat ears, and only partially solid, which seriously affects the yield. The specific defense and remedial measures are: Irrigation, smoking and other measures taken before the advent of low temperatures can prevent and reduce the occurrence of low-temperature chilling, timely fertilizer and watering to ensure normal wheat grouting, improve grain weight. Herbal And Flower Tea,Herbal Flower Tea,Red Bean Barley Slimming Tea,Lotus Leaf Jasmine Buckwheat Tea Huantai Biotechnology Co., Ltd. , https://www.huantaifds.com