为研究生产上长期限制麦茬水稻产量的有效分蘖低、结实率低、千粒重低和经济系数低等一系列问题,在北京农业大学,1979年采用盆栽法,1980年—1981年布置在田间,对麦茬水稻相同密度条件下,通过基肥和分蘖肥的改变,到穗首分化期构成三种营养体。在三种营养体上分别施用相同数量的穗首分化肥、颖花分化肥、减数分裂肥和齐穗肥,研究前、中后 In order to study a series of problems such as low effective tillering, low seed setting rate, low 1000-grain weight and low economic coefficient in the long-term limited production of rice stubble in the production, Beijing University of Agriculture, potted method was used in 1979 and placed in the field in 1980-1981. Under the same density of wheat stubble rice, through the change of basal and tillering fertilizers, three kinds of nutriments were formed during the ear panicle differentiation. The same amount of ear split fertilizer, spike split fertilizer, meiosis split fertilizer and full panicle spike fertilizer were applied on the three kinds of nutriments respectively. Before and after