The decrease in fruit setting rate and the increase in the number of deformed fruit are problems that often occur during vegetable production in summer, which seriously affects the yield and quality of vegetables. Recently, many vegetable farmers called to ask if there is any way to prevent such damage. According to the current climatic conditions, the author analyzes the causes of falling fruits and vegetables in summers as follows:
High temperature This is the culprit that caused the tomatoes to fall. In the cultivation of summer vegetables, the high temperature of around 32°C often exists. High temperatures severely affect the fruit setting rate of vegetables. High temperature makes the adhesion of pollen and stigma lower, and seriously affects the pollen germination rate and pollen tube elongation rate, making pollination fertilization poor, resulting in a large number of fruit and fruit off and produce a large number of malformed fruit. In the high temperature at noon to strengthen the ventilation, and use shade net cover.
The suitable air humidity for air drying is very important for normal fertilization. In general, a suitable air humidity is 70% to 80%. Especially during the fruitful period of flowering and fruit setting, keep the ground dry and wet. Sprayer can be sprayed with fresh water to increase air humidity.
The lack of boron and phosphorus elements in some nutrient elements plays an important role in promoting flower bud differentiation and improving fruit set. In flowering and fruit setting period, borax and potassium dihydrogen phosphate solution can be sprayed on the leaves. During the period of fruitful growth, calcium fertilizer should be added to enhance plant resistance, improve pollination performance, improve fruit quality, and prevent physiological diseases such as umbilical rot, sun scorch, and bud blight.
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