开好排水沟,降低土壤含水量要降低土壤含水量,首先要学习大寨精神,做好排涝工作,使条条排水渠道畅通无阻。平原水网地区,在外港水位高于内港水位时,要及时关闸翻水,降低内港水位,排除田间积水。山区、半山区,要开好避水沟,防止山水冲入田内。未收割的晚稻田,可以先割掉几行稻,开好横沟,排掉田间积水;晚稻已收割的田,用人工岔翻的,要改变先翻耕后开沟的做法,做到先开好“三 Drainage ditches to reduce soil moisture To reduce soil moisture, we must first learn Dazhai spirit, do a good job of drainage work, so that all drainage channels unobstructed. Plain water network area, when the water level of the outer harbor is higher than the inner harbor water level, it is necessary to shut the floodgate in time to reduce the water level in the inner harbor and to exclude the field water. Mountain, Mid-Levels, to open a good ditch, to prevent the landscape into the fields. Uncultivated late rice fields, you can cut off a few lines of rice, open a good horizontal ditch, drained field water; late rice has been harvested field, turn with artificial fork, to change the practice of trenching after tilling First open a good three