Recently, Yangchuan, a large watermelon planter in Yongfu Village, Xinglong Town, Nanchuan District, is mulching on the arable land to prepare gift melons.
According to reports, gift melon is a popular melon species. Not only the appearance of "mini", the skin is extremely thin, and the meat is finer than the ordinary watermelon, the taste is good, and the sugar content is high, which is very popular.
After planting watermelon for 8 years, Yang Chuan is also a small and famous watermelon planter in the local area. Through continuous experimentation, he finally overcomes the problem that watermelon cannot be continuous. This year, he will plant 50 acres of gift melons on the land that was planted with melons last year.
"Growing watermelons in the fields where watermelons have been planted, the seedlings are not sick or dead. Therefore, it is necessary to change places every year. Large areas with convenient transportation and good farming conditions are not easy to find, and it is difficult to overcome the difficulties of continuous watermelon making. More important," said Yang Chuan.
He said that after continuous cropping, the watermelon plants grow weakly, and the roots are prone to root nodule nematodes, blight, and diseases, resulting in a substantial reduction in production, even in severe cases. The problems of disease occurrence and yield reduction in watermelon continuous cropping plants are caused by the same nutrients continuously absorbed by the same crops during continuous cropping, resulting in soil malnutrition and decreased plant disease resistance.
To solve these problems, he suggested the following methods.
Soil disinfection There is a large number of pathogenic fungi in the soil that has not been disinfected. It is easy to cause disease occurrence and epidemic. The soil should be disinfected before the watermelon is planted. The disinfectant can be carbendazim and chlorothalonil.
The seedlings are planted with grafted seedlings to reduce the wilt and stagnation of watermelon, and the resistant and healthy varieties are used as the scions of the grafted seedlings. Currently used as rootstocks are mainly gourd melon, melon and so on.
To control the fertilizer, you should choose a fertilizer that contains organic nutrients, preferably a fertilizer containing trace elements of iron, zinc and manganese. Special fertilizer is applied during the extension of watermelon to enhance plant resistance after spraying. In addition, it is necessary to control the ambient temperature and reduce the chance of infection.
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