The Dynamic Study On The Organism Yield And Nutrient Absorb Of Corn In Different Yield Treatments

The article systematically studied dry weight and nutrient absorb of corn in different yield treatments on the basis of Ji Lin corn .It established the theory basis of understanding the mechanism of corn high yield and offered some practice experience.The study indicates: the dry weight quantity (Y) of average every plant com in different yield treatments on the basis of the days (X)of each sampling stage accords the equation of Logistic Y=K/l+e^a-bx, moreover the highest rate of increase and the day of emerge can be calculate from the equation .The high yield treatment all is more than other treatments on the highest rate of increase, average rate of increase and dry weight quantity in different yield treatments in the experiment fields (Li Shu,Hua Dian).On the dry weight of com each component aspect. The study indicates: the dry weight speed of leaf, stalk, sheath and spike in different yield treatments all show the regular of earlier stage fast, midterm slow and later stage fast. But the dry weight speed of grain continuously raise. The dry weight quantity of leaf,stalk,sheath,spike and grain in different yield treatments all show high yield treatment > midterm yield treatment > non-fertilizer treatment.On the N,P₂O₅ and K₂O accumulation aspect. The study indicates: the N,P₂O₅ and K₂O accumulation quantity (Y) of average every plant com in different yield treatments on the basis of the days (X) of each sampling stage accords the equation of Logistic Y=K/l+e^a-bx, moreover the highest rate of increase and the day of emerge can be calculate from the equation. The high yield treatment all is more than other treatments on the highest rate of nutrient absorb and the total quantity of nutrient absorb in different yield treatments in the experiment fields (Li Shu,Hua Dian).On the N,P₂O₅ and K₂O accumulation of com each component aspect. The study indicates: the N> P₂O₅ and K₂O accumulation speed of leaf and stalk in different yield treatments all show the regular of earlier stage fast,midterm slow and later stage fast. The N,P₂O₅ and K₂O accumulation quantity of leaf and stalk in different yield treatments all show high yield treatment > midterm yield treatment > non-fertilizer treatment.The study indicates: the Zn accumulation quantity (Y) of average every plant com in different yield treatments on the basis of the days (X) of each sampling stage accords the equation of Logistic...