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早改水地区在水源条件不足时改种水稻，加上水的管理不当，造成水稻青立和阜青立两种生理性病害多有发生，严重影响了新区水稻生产。水稻青立多发生在新开垦的旱地改的水田，而且这些田第一年种水稻发病较多．第二年就较少发生，随着种稻年限增加，病害明显减轻，直到消失。水
As early as the water areas in poor water conditions, re-planting rice, coupled with improper management of water, resulting in rice Green and Fu Qing Li two physiological diseases occur more often, seriously affecting the new area of rice production. Rice Qingliu occurred in newly reclaimed dryland paddy fields, and the first year of these fields was more prone to rice disease. The second year is less likely to occur, with the increase of rice years, the disease significantly reduced until it disappeared. water