河北省唐山地区冬小麦产量的土壤养分限制因子研究  

Study on the Limiting Factors of Soil Nutrients Related to the Yield of Winter Wheat in Tangshan,Hebei Province

作　　者：王素华[1] 冯自军[1] 张树明[1] 张作新[1] 

机构地区：[1]唐山市农业局土壤肥料站,河北唐山063000

出　　处：《河北农业科学》2009年第11期33-34,共2页Journal of Hebei Agricultural Sciences

摘　　要：采用田间试验的方法,研究了唐山地区冬小麦产量的土壤养分限制因子,分析了冬小麦产量构成因素对其产量的影响。结果表明:在唐山地区缺硼施肥处理对冬小麦产量影响最大;与全素处理相比,缺硼处理的千粒重减少3.2 g,相对产量为90.7%,减产量达962.5 kg/hm2,差异达到显著水平。硼主要通过降低冬小麦的千粒重而影响产量,是冬小麦产量的主要土壤养分限制因子。The limiting factors of soil nutrients related to the yield of winter wheat in Tangshan were studied, and the effects of yield components on the yield of winter wheat were analyzed by field experiment. The results showed that the fertilization without boron had the most important influence on the yield, which could make the 1 000-grain weight and yield reduced by 3.2 g and 90. 7% , respectively, and the difference was significant. Boron was the main limiting factor in soil nutrients related to the yield of winter wheat.

关 键 词：冬小麦 土壤养分 限制因子 产量构成因素 产量 

分 类 号：S158.3[农业科学—土壤学]