Abnormal melons affect the appearance of fruit trees how to prevent zucchini deformed melons

The reasons for the deformity of zucchini are as follows: lack of water and fertilizer, it is easy to form pointed melon in the early stage, thin waist melon in the middle stage and slender crooked melon in the later stage. But in the middle stage, too much fat and water is easy to form a pot-bellied melon. Poor pollination, uneven distribution of pollen, so that the lack of pollination is depressed. Too high or too low temperature will affect the photosynthetic efficiency of zucchini, make it undernourished and inhibit fruit development. Their own female flowers are missing or bisexual flowers form zucchini, resulting in deformities.

Zucchini deformity

Meet the requirements of fertilizer and water. Zucchini need more fertilizer, strong fertilizer absorption, more drought tolerance, but the expansion period needs more water, to keep the soil moist. Therefore, first, we should apply sufficient base fertilizer, second, we should cooperate with nitrogen and potassium, we should topdressing in time, and each batch of melons should be fertilized once after harvest. In the base fertilizer, 5000 kg of high-quality farm manure, 300kg of cake fertilizer, 100kg of phosphate fertilizer and 50kg of potassium fertilizer were applied per mu, and zinc fertilizer and magnesium fertilizer were applied appropriately. The field moisture is mainly controlled by dry control in the early stage, and it should be kept moist in the fruiting period.

Pay attention to the regulation of temperature. Precocious cultivation often uses plastic film greenhouse to cover small shed to increase temperature and heat preservation. The suitable temperature range of zucchini is 15Mel 38 ℃, the optimum temperature for growth and development is 18Mel 25 ℃, the suitable soil temperature is 12Mel 35 ℃, and the suitable soil temperature is 15Mel 25 ℃. Therefore, it is necessary to adjust the uncovering time according to climate change, especially according to the temperature requirements of zucchini, which is more conducive to the accumulation of nutrients and reduce consumption.

To carry out artificial pollination. The male flowers are in the peak blooming period from 8 to 10:00 every morning. The male flowers should be picked, the Corolla should be removed, and the anthers should be gently dropped on the stigma of the female flowers. One male flower can give 3 female flowers. When the air humidity is high, the pollination effect is better. Pollination should be evenly pollinated and put into practice. In order to protect the fruit, to cooperate with hormone treatment, you can use 20Mel 30mg / L 2mai 4LV D in the morning of flowering to apply liquid on the pedicel or ovary with a brush, but do not let the liquid sprinkle on the stems and leaves to prevent drug damage; you can also spray 40Mel 50mg / L tomato spirit on the female flower stigma of zucchini.