Shangguan Zhouping,Liu Wenzhao,Xu Xuanbin.Interactive Effects of Water and Fertilizer on Yield of Winter Wheat in Dryland[J].Research of Soil and Water Conservation,1999,6(01):103-106.
旱作农田冬小麦水肥耦合增产效应
- Title:
- Interactive Effects of Water and Fertilizer on Yield of Winter Wheat in Dryland
- Keywords:
- fertilization; interactive effects; dryland; winter wheat
- 摘要:
- 增施肥料可明显改善旱作农田冬小麦叶片水分状况、增加光合速率、延缓叶片衰老,有利于小麦后期维持一定的光合面积和作用时间,有利于籽粒灌浆和增加每穗粒数,也减小了土壤水分不足对产量的影响.在旱作农业中,水肥具有明显的耦合关系,肥料的增产作用不仅在于肥料本身,更重要的还在于与土壤水分的互作.
- Abstract:
- Suppling fertilizer have many effects to winter wheat growth in dryland,such as improving photosynthetic rate and water status of leaves,delaying leaf capacity,maintaining certain photosynthetic areas and effect time,improving grain filling,increasing the grain amount of per spike,and decreasing the effects of water stress to yield,et al..There are obvious interactive effects of water and fertilizer on winter wheat yield,the effect of fertilizer to yield not only depend on fertilizer,but also depend on soil water condition.
参考文献/References:
[1] 李玉山,张孝中,郭明航.旱作潜势与水肥效应的田间研究.土壤学报,1990,27(2):107～114
[2] 上官周平,陈培元,李英.氮肥和底墒对小麦籽粒灌浆过程的调节效应分析.西北植物学报,1994,14(2):107～116
[3] 山仑.提高半干旱地区农田生产力的现实途径和未来策略.中国科学院西北水土保持研究所集刊,1988,第8集,1～9
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备注/Memo
收稿日期:1999-1-10。
基金项目:国家自然科学基金