First, high temperature: This is the "culprit" that causes the fruits of flowers to fall. In the planting of vegetable shelters in summer, high temperatures of 32 °C are common. Excessive temperature can seriously affect the fruit setting rate of vegetables. If the temperature is too high, the adhesion between the pollen and the stigma is reduced, and the germination rate of the pollen and the elongation rate of the pollen tube are affected, so that the pollination and fertilization are poor, the fertilization process is disordered, and the flower fruit is largely detached and a large number of deformed fruits are produced. Therefore, it is necessary to strengthen the wind at noon at high temperatures and cover it with a shade net.
Second, air drying: Suitable air humidity is also very important for normal fertilization, in general, the appropriate air humidity is 70-80%. Especially in the flowering and fruiting period, to keep the ground dry and wet, spray the water on the sprayer to increase the air humidity.
3. Lack of certain nutrient elements: Boron and phosphorus have important effects on promoting flower bud differentiation and increasing fruit set rate. In the flowering and fruit setting period, borax and potassium dihydrogen phosphate solution can be sprayed on the foliage. In the peak period of the results, it is necessary to increase the application of calcium fertilizer, which is important for enhancing plant resistance, improving pollination performance, improving fruit quality, and preventing physiological diseases such as umbilical rot, sunburn and blight. In the hot and dry season, the application of potassium fertilizer can improve the drought resistance and heat resistance of plants.
Fourth, the plant is long: high temperature, strong sunshine in the plant growth point to produce a large amount of gibberellin, it is easy to make the internodes too long, nutrient growth is too strong, leading to falling flowers and fruit. It is also necessary to control the amount of nitrogen fertilizer and increase the application of phosphorus and potassium fertilizer.
V. Pay attention to cultivating strong seedlings: Cultivating age-appropriate seedlings plays an important role in enhancing plant resistance and increasing fruit set rate. Flower bud differentiation during seedling stage directly determines the fruit setting rate of 1-2 spikes after planting. Now in the nursery period, the sunshade net and the insect net should be covered to reduce the temperature of the seedbed. In the middle and late stages, the potassium dihydrogen phosphate solution can be sprayed on the foliar surface. Depending on the growth of the plant, it is determined whether the leaf surface is sprayed with the helper to control the plant length.
Biomass/Feed/Fertilizer Pellet Plants
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