Study on Application Effect of Urea Phosphate in Continuous Crystallization Process of Wet-Process Phosphoric Acid
In order to master the application effect of urea phosphate products produced by continuous crystallization process of wet-process phosphoric acid in saline-alkali soil,four treatments of CK(no phosphate fertilizer),TMAP(monoammonium phosphate),UP(urea phosphate)and T8U2(monoammonium phosphate and urea phosphate 8∶2)were set up with Kennong 28 soybean varieties as materials,and three replicates were set up for each treatment.The effects of different phosphate fertilizers on soybean growth,photosynthesis and yield were studied through field experiments.The application of urea phosphate significantly increased the fresh weight,dry weight and plant height of soybean at each growth stage,and increased the photosynthetic capacity at flowering stage.The yield-increasing effect of urea phosphate and industrial monoammonium mass ratio 8:2 combined with T8U2 treatment was the best.
urea phosphatecontinuous crystallizationthe process of wet-process phosphoric acidnutrient potentiation
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