The cause of malformed fruit in zucchini is as follows: lack of water and fertilizer. The lack of enough water and melon is easy to form sharp-toothed melon in the early stage. The medium-term deficiency is easy to form thin-waisted melons. If the fat and water in the medium-term too fierce and easy to form big guaguai.
Poor pollination, uneven distribution of pollen, so that the lack of pollination was a depression. Too high or too low a temperature will affect the photosynthetic efficiency, which will result in insufficient nutrient production and inhibit fruit development.
Control measures 1. Meet the requirements of water and fertilizer. Zucchini needs more fertilizer, strong suction fertility. One must apply basic fertilizer, and the other must use nitrogen and potassium in combination with timely fertilizer. Each batch of melon should be topdressed once after harvesting. In the early stage of the field, the control of dry stems is the main reason, and during the result period, the wet management must be maintained. 2. Conduct artificial pollination. Every day from 8 to 10 o'clock in the morning when the male flower is at its peak, male flowers are to be taken and their corollas are dropped. The anthers are gently cast on the stigma of the female flower. A male flower can give three female flowers. The pollination effect is higher when the humidity is high. it is good. 3. Pay attention to regulating temperature. The adaptable temperature range of the summer cucurbit is 15°C-38°C, and the optimum temperature range for growth and development is 18°C-25°C. Therefore, it is necessary to adjust the time for uncovering the film according to the climate change situation, and in particular to change the temperature management according to the requirements of the temperature, which is more conducive to the accumulation of nutrients and the reduction of consumption.
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