1994～ 1997年在扬州大学农学院作物栽培生理省级重点实验室试验场 ,研究了密度、施氮量、氮磷钾配比及氮肥运筹方式对小麦籽粒胚乳细胞增殖与充实的调节效应。结果表明 ,密度和施肥运筹对胚乳细胞增殖及充实有显著调节效应 ,适当降低基本苗 ,增加施氮量并扩大后期 (拔节肥、保花肥 )追肥比例 ,提高磷钾肥施用比例 ,特别是增加拔节期磷、钾肥用量 ,能显著促进胚乳细胞分裂增殖和提高胚乳细胞充实度 ,从而增加粒重。 1994-1997 in Yangzhou University College of Agriculture, Provincial Key Laboratory of crop cultivation physiology laboratory to study the density, nitrogen rate, N, P and K ratio and nitrogen fertilizer on wheat grain endosperm cell proliferation and enrichment regulation. The results showed that the density and fertilizer application had a significant regulatory effect on the proliferation and enrichment of endosperm cells, and the basic seedlings were appropriately reduced, the nitrogen application rate was increased and the proportion of topdressing fertilizer in the late stage (jointing fertilizer and baohua fertilizer) was expanded, the proportion of phosphorus and potassium fertilizer was increased, Phosphorus, potassium fertilizer, can significantly promote the endosperm cell division and proliferation and improve endosperm cell enrichment, thereby increasing grain weight.