Effects of Long-term Located Fertilization on Yield and Quality Characters of Winter Wheat in the Northwestern Loessial Soil Region
In order to explore the effects of long-term located fertilization on grain yield and quality of winter wheat in the loessial soil region of northwest China,based on the 40-year long-term fertilization experiment,the effects of different organic fertilizers and chemical fertilizers on the yield and quality of wheat were studied.The results showed that the application of organic fertilizer in the loessial soil area of Northwest China had obvious effect on increasing yield.N fertilizer and P fertilizer were two important factors limiting the yield and growth of wheat,and K fertilizer had no obvious effect on increasing yield of wheat.The application of chemical fertilizer could increase the content of protein and wet gluten in wheat grains.Single application of N fertilizer,combined application of P fertilizer and K fertilizer on the basis of organic fertilizer and N fertilizer would reduce the content of protein and wet gluten.Single application of N fertilizer would increase the sedimentation value of wheat grains,and the combined application of P,K fertilizer,organic fertilizer and inorganic fertilizer would reduce the sedimentation value of wheat grains.Single application of N fertilizer,organic fertilizer and N fertilizer could prolong the stability time and formation time.The application of chemical fertilizer would reduce the resistance to extension,and the effect of organic fertilizer on the resistance to extension was not obvious.The above shows that under the experimental conditions,the combined application of organic fertilizer and N fertilizer is an effective measure to improve the yield and quality of wheat,and long-term application of K fertilizer will restrict the improvement of wheat yield and quality.
Long-term located fertilizationWheatYieldQualityNorthwestern loessial soil
国家科技期刊平台
NSTL
万方数据
