The effects of basic nitrogen supply capacity(BNC)of different texture soils(sandy soil,loam soil and clay soil)on potential rice yield(PRY)in Jiangsu Province were studied at 196 experiment plots in 11 counties with 19 different rice varieties.

• 以近年来江苏省广泛种植的19个不同基因型水稻品种为材料,在11个县市区196个田块进行试验,研究江苏省不同类型土壤基础供氮能力对水稻产量的影响。