宁南水土流失区盐碱地施肥对春小麦的影响

该文研究了宁南水土流失区土壤盐分对春小麦生长发育及其生产力的影响。结果表明:春小麦幼苗期对土壤盐分比较敏感,生长后期抗盐害能力增强。而且,不同肥料对盐碱地春小麦的影响也不同,施磷肥较施氮肥增强了春小麦的耐盐能力,促进了春小麦的生长发育。在土壤盐分含量不同条件下,施磷肥比施氮肥功能叶片数增多,地上部干物质积累加快,籽粒产量明显增加。

Influence of Supply Manure no Spring Wheat in Saline-alkali Land of Soil and Water Loss Areas of South Ningxi

The pot experiments have been carried out to approach the influen:es of soil salt on:growth and productivity of Spring wheat, The ;results are shown as follow; Spring wheat is sensitive to soil salt during seedlings and its ability of saltresistance increases after seedling,Meanwhile, the influences of different manure on Spring wheat are different, Supplying P can enhance larger ability of saltenduring than supplying N and promote the better growth of Spring wheat, Under different condition of soil salt supplying P can develop more functive leaves,result in larger speed of accu-mulating aboveground drymatter and promote the yield more remarkable comparedrwith supplying N.