答:超级稻大田田间水分管理一般原则是“好气灌溉,发根促蘖”。前期要求做到浅水插植活兜苗),薄露发根促蘖。倒2叶龄期采用干湿交替灌溉,以协调根系对水分和空气的需求,直至成熟。当茎蘖数达到每667平方米16万苗时开始晒田。晒田应视苗情分多次进行。每次不要晒得过重,以泥土表 A: Super rice field field water management general principle is “good gas irrigation, hair root tillering.” Earlier requirements to do shallow water planting seedling seedlings), thin exposed hair roots to promote tillering. In the 2-leaf stage, alternate wet and dry irrigation was used to coordinate the water and air requirements of the root system until it matured. When the number of stems and tillers reached 16 million seedlings per 667 square meters started Shaitan. Sha Tin should be divided into several times depending on the Miao. Do not over-sun each time, to the earth table