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- W2355541672 abstract "Based on the long-term fertilization experiment of Loess Plateau,the effect of long-term P fertilization on winter wheat yield was sudied under certain amount of N fertilier(90 kg/ha).The results showed that the yield of wheat with P fertilization is still increased obviously in the field with long-term P fertilization.The wheat yield increased by1 393.75-2 121.00 kg/ha and 48.41%-73.67% higher compared to the control treatment.The wheat yield reached the highest value 5 000 kg/ha in the P treatment of 39.6 kg/ha,which was consist with the value of P fertilization when the spike number was highest.The relationship between yield and the amount of P fertilizer application fit the regression equation Y=-0.866 7X2 +82.641X+3 008.4(R2 =0.92) well,P fertilizer mainly influenced the yield of wheat by changing spike number per ha,however,its′ impact on both of grains per spike and 1 000 grains yield was not obvious.The P fertilization can also promoted the absorption and utilization of N,P,K in wheat,and improved fertilizer efficiency and fertilizer use efficiency.Too little P fertilizer can not meet the demand of crops and the wheat yield was low,the wheat yield will not contiue to raise with the increasing of amount of P fertilizer when excessive amount of P fertilizer was used,on the contrary,certain decrese happened." @default.
- W2355541672 created "2016-06-24" @default.
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- W2355541672 date "2008-01-01" @default.
- W2355541672 modified "2023-09-25" @default.
- W2355541672 title "Effect of Long-term P Fertilization on Wheat Yield of Loess Plateau" @default.
- W2355541672 hasPublicationYear "2008" @default.
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