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水稻坐蔸,是我区低产田的生理障碍病。主要特征是插秧后返青慢,分蘖迟,新根少,根易变黑,叶片上出现褐色斑点,甚至萎缩死苗。群众称为“钻泥田”、“病秧田”、“返秋田”、“红苗田”等。水稻坐蔸后,一般减产三至五成,严重的颗粒无收。六十年代以来,通过改冬水田为水旱轮作及施用磷肥等,使全区水稻坐蔸面积大为减少。近几年,随着氮素化肥施用量迅速增加,有机肥、磷、钾肥相对下降,加之稻田重灌轻排,导致水稻坐蔸的面积又逐年扩大,约占水稻面积的20％左右。为了解决这一问题,1978年以来,我们经过调查研究,
Sitting in rice, is a low-yielding fields in our area of physical disorders. The main feature is to return to green after transplanting slow, late tillering, less root, root easy to black, brown spots on the leaves, or even shrink dead seedlings. The masses are called “drill mud field”, “sick seedling”, “return to Akita”, “Red Miao” and so on. After sitting in rice, the general cut of three to five into a serious crop failure. Since the 1960s, by changing winter paddy field rotation and fertilizer application of phosphorus and so on, so that the area greatly reduced the area of rice sitting Xi. In recent years, with the rapid increase of nitrogenous fertilizer application rate, the relative decline of organic manure, phosphorus and potash fertilizer combined with re-irrigation of rice paddy led to an increase in the area of rice sowing year by year, accounting for about 20% of the rice area. In order to solve this problem, since 1978, after investigation and research,