The late wheat growth period refers to the stage from heading to maturity, and is also the period of wheat economic production (grain), and it is the most critical and most important period for wheat management. During this period, the supply of water and nutrients in the wheat field has a direct impact on the formation of yield. Therefore, we must do a good job in regulating water and fertilizer to meet the normal physiological and physiological needs of wheat. To prevent the emergence of two extreme phenomena: First, defertilization (due to malnutrition often lead to premature decline in production), and second, greediness (due to over-nutrition is often prone to prolonged late maturity). The management in the later stage must be based on "cultivation of roots, protection of leaves, preservation of grain, and increase of weight." From booting to heading, wheat is a critical period of life. If wheat is affected by drought during this period, the production will be severely reduced. Therefore, it is required that the soil moisture in the wheat field during this period should be suitable. Simultaneous application of fertilizer should be cautious, according to the wheat seedlings for targeted root spray fertilizer. For wheat fields with normal nursery conditions, potassium dihydrogen phosphate should be added to increase the strength and rate of grouting and to increase grain gain and weight gain. For wheat fields with signs of defertilization (yellow leaves, weak population growth, and red spider damage), urea, amino acids, and trace fertilizers should be added to promote greening and greening to delay aging. For wheat fields that are overgrown and have a long-term trend of greed for youth (leaves are dark green and the group is too large and too dense), we should prevent it from falling, prevent disease and prevent late ripeness, strictly control watering, and prohibit the use of various fertilizers so that no drought occurs. Do not pour, not spray nitrogen fertilizer foliar, spraying only pesticides in the late to prevent pests. General spray fertilizer can be combined with pest and disease prevention and control, comprehensive consideration and comprehensive utilization, and “one spray and three defenses†from the booting stage to the grain filling stage. Can use 150g of potassium dihydrogen phosphate per acre (supplement fertilizer), 1.8% of avermectin cream 20ml (control insects), 20% triadimefon EC 40ml (prevention of disease), 0.1% 481 brassinolide 5g (inflammation ), Spray 50 kg of water spray, spraying 2-3 times in intervals of 7-10 days. However, it should be based on the situation of wheat seedlings, diseases and insect pests, etc., adjust the increase and decrease of pesticides and fertilizers to ensure its practical effect of disease prevention and pest reduction and yield increase. Jet Hydrant,Automatic Hydrant Water Cannon,Jet Fire Extinguishing System,Jet Hydrant Water Cannon LIAONING YINGKOU TIANCHENG FIRE PROTECTION EQUIPMENT CO.,LTD , https://www.tcfiretech.com