据省稻作研究所试验,水稻改一次施大头肥为分期施肥,可以减少肥料损失,提高肥料利用率.一般在插秧前,施总肥量40～50%的基肥;分蘖始期施30%左右的促蘖肥;孕穗期主要在减数分裂期施20～30%的穗肥水稻前后期(以拔节为界)施肥比例为7:3,不仅能提高化肥肥效,而且能促进水稻前后期长势协调,确保高产稳产. According to the Provincial Rice Research Institute test, rice to change the big manure for staging fertilization, can reduce fertilizer losses and improve fertilizer utilization.Generally before transplanting, the total amount of fertilizer 40 to 50% of the base fertilizer; initial application of about 30% tillering Of the tillering stage; booting stage mainly in the meiosis 20 to 30% of spike paddy rice before and after (jointing for the community) fertilization ratio of 7: 3, not only can improve fertilizer efficiency, but also to promote the growth of rice before and after Coordination to ensure high and stable yield.