Effect Of Nutrient Condition On Dry Matter Accumulation And Nutrient Absorption Of Spring Wheat

Using the field experiment ,chemical analysis and biological statistic methods, the dry matter accumulation and nutrient absorption were systematically studied with spring wheat。 From tillering to fruit ,.the contents of nutrient substance that is N,P,K,Fe,Mn,Cu,Zn,Ca,Mg,S were made clearly. The dry matter and nutrient substance accumulation per area of the part were also made clearly ,and established their mathematical models ,and knew the fastest absorptive speed and their appearing time .Difference of absorption and transformation was made clearly . It provided the scientific basic for high yield of spring wheat , high quality and defining the best fertility amount.