早发是水稻高产的关键,要促使水稻早发,必须抓好以下三项管理措施。 一、“栽前三带”带“送嫁肥”水稻送嫁肥的作用在于满足秧苗移栽后发根、成活的需要,增强秧苗抵御外界不良环境条件的能力。一般在移栽前4—5天内施用,亩施尿素3—4公斤,使秧苗叶色转绿而不过浓。秧苗生长较旺、叶色浓绿,则不宜施送嫁肥。 Early onset is the key to the high yield of rice. To promote the early onset of rice, we must grasp the following three management measures. First, the “planted the first three belts” with “to marry fat” The role of rice to deliver fertilizer is to meet the roots of transplanted seedlings, the need to survive, enhance seedlings to resist the adverse environmental conditions ability. Generally 4-5 days before transplanting application, acre urea 3-4 kg, the seedling leaves turn green but thick. Seedling growth more prosperous, leaf color dark green, it is not appropriate to deliver fertilizer.