机插早稻是采用小苗移栽,秧龄只有15~18天,秧苗素质相对较差,机插后如遇不良环境条件易发生僵苗。根据僵苗形成的原因,采取相应的措施,尽快促进僵苗转化。1.苗质型主要是落谷量过高或严重超秧龄,致使秧苗细长、叶色发黄,风吹易倒、蹲苗期明显长于适龄正常秧苗。对于这类苗质差的僵苗,需要进行合理的肥水管理:一是看苗施好起身肥,对叶色褪淡的脱力苗,每667平方米用尿素4.5公斤对水50公斤,于傍晚喷洒 Machine inserted early rice is transplanted with seedlings, seedling age of only 15 to 18 days, the quality of relatively poor seedlings, machine inserted in case of adverse environmental conditions prone to stiff seedlings. According to the reasons for the formation of stiff seedlings, take appropriate measures to promote the transformation of stiff seedlings as soon as possible. 1. The quality of the seedling is mainly caused by too high or severely overgrowth, resulting in the slender seedling, the yellowish leaf color, the easiness of wind blowing, and the squatting seedling stage obviously longer than the normal seedling age. For such poor quality seedlings rigid seedlings, the need for a reasonable management of fertilizer and water: First, look good seedlings fertilizer facilities, fade on the leaf color of the seedlings, each with 667 square meters 4.5 kg of urea on the water 50 kg in the evening spray