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

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.