Cause of airborne 1. Partial application of nitrogen fertilizer, female flowers are stunted. In the watermelon base fertilizer, if partial application of nitrogen fertilizer, especially fast-acting nitrogen fertilizer, it is easy to cause melon vine growth, resulting in poor development of female flowers, although it can also flower pollination, but the ovary is thin and shrivelled. Due to excessive nutrients consumed during the growth of stems and leaves, young melons often fall off due to physiological disorders. The lower the node of the general result, the more serious the airborne phenomenon will be. 2. Variety is wrong, delay sitting time. If the mid-to-late ripe watermelon varieties are selected, the planting time is late, and it is easy to encounter the rainy season, the vegetative growth is too vigorous, and it is difficult to sit melon, or sit late and set melon. 3. Poor environment affects pollen germination. High temperature and drought, when the relative humidity of the air is only 50%, the germination rate of pollen will drop to below 20%; low temperature and low light, when the temperature drops below 18 degrees Celsius, it is difficult to sit melon. During continuous rain, it is easy to "melon"; rain and rain will cause pollination to be blocked; improper spraying of pesticides or top-dressing of roots will also cause young melons to fall off. 4. If the density is too large, it is not appropriate to keep young melons. In some melon fields, the planting density is too large, the topping time is too late, and the depression is serious. At the same time, the retention of melons is too low, and the young melons are malnourished, which is easy to cause melon fall or quality decline. Precaution 1. Choose easy-to-seat melon varieties. For the farmers who are planting watermelon for the first time, it is appropriate to use varieties with moderate plant growth, strong fruit setting and less sensitive to temperature, light, fertilizer and water requirements. 2. Formulated balanced application of base fertilizer. The base fertilizer should be mainly cooked commercial organic fertilizer, avoid uncooked chicken manure, prevent burning root dead seedlings and increase the content of nitrite in the soil; increase the application of phosphorus and potassium fertilizers, reduce nitrogen fertilizer, especially increase the application of sulfuric acid Potassium compound fertilizer can effectively increase the sugar content of watermelon; do not fertilize excessively to prevent fat damage to seedlings. 3. Properly control field watering. Generally in the growth period of stems and leaves, timely watering in a timely manner is conducive to the vegetative growth of watermelon, but one week before the opening of the female flower in the fruit setting node, watering should be strictly controlled to prevent the stems from growing long. In addition, it is not advisable to spray fertilizer or spray root outside to avoid pollen damage. Disclaimer: Some articles of this website are transferred from the Internet. If the legal rights of third parties are involved, please inform this website for processing. phone Dear gentlemen, are you confused in your pursuit of health and vitality? Our company brings you a health product specially created for modern men, allowing you to regain your confidence and show your strongest self! Whether it`s work stress or physical fatigue, we all need to pay attention to our health and energy. Let`s explore this exciting new product together! male enhancement,best supplements for men,men's supplements Xi'an complex bio-tech CO.,LTD. , https://www.complexpowder.com
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