Make beds in watermelon fields
In the humid climate zone of the middle and lower reaches of the Yangtze River in China, there is a lot of rainfall and heavy rainfall in the growing season of watermelons. The principle of making beds is mainly to eliminate stagnant water, and it is also necessary to give proper consideration to the problem of supplementary watering in summer drought in the later stage of growth. it is generally in the form of deep ditch and high border, which is divided into two types: wide and narrow. Drainage ditches with a depth of 30 cm are dug on both sides of the border and communicate with the drainage ditches around the melon fields (about 50 cm deep) in order to remove stagnant water in the fields, and these drains can also be used to irrigate the melon fields in the event of late drought.
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