单季晚稻计算机配方施肥研究，包括单季晚稻简化施肥技术，产量因子效应，微机程序设计等内容。通过研究结合上海地区实践已获得较好结果，中试和大田推广表明：采用微机配方施肥，既能使水稻平衡吸收养分，达到高产稳产，又能省工、省肥、减少污染，每公顷增产粮食２２５～３００ｋｇ，节约化肥（碳铵）２２５ｋｇ。 Single-cropping late rice computer formula fertilizer research, including single-cropped late rice simplified fertilization technology, yield factor effects, computer programming and so on. Through the study combined with the practice in Shanghai area, good results have been obtained. The pilot plantation and field promotion showed that using microcomputer formula fertilization can not only make rice absorb nutrients balancely, achieve high and stable yield, but also save labor, save fertilizer, reduce pollution and increase yield per hectare Food 225 ~ 300kg, save fertilizer (ammonium bicarbonate) 225kg.