Traditional Culture Encyclopedia - Weather forecast - How to irrigate watermelons in humid climate areas in South China?
How to irrigate watermelons in humid climate areas in South China?
There is more rainfall in the early and middle period of watermelon growing season in southern China, so we should pay attention to strengthening field drainage and appropriate supplementary irrigation in the late high temperature period and summer drought period. When planting watermelon in hilly areas of southern China, due to the thin soil layer and lack of irrigation conditions, drought in late summer has a great impact on fruit development, so deep ploughing should be carried out in winter to increase soil water retention; Reduce the influence of drought on fruit development through seedling raising and early cultivation; Covering the ground with grass can reduce water evaporation, keep the boundary loose, and store some rainwater. Especially, covering grass before summer drought has obvious drought resistance effect on melon orchards in hilly areas.
Watermelon planted in southern China is generally not irrigated alone when it is combined with topdressing to irrigate human feces at the initial stage of growth. When there is high temperature and dry weather in mid-May, 1 ~ 2 times of small water can be properly poured to increase the humidity of the surface soil. In the summer drought in July, in order to ensure fruit expansion, it is appropriate to irrigate the border surface without water, a small amount of water for many times, without water accumulation. Irrigation time should be in the evening, so as not to hurt the roots when the water temperature is too high during the day.
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