湿法磷酸连续结晶工艺磷酸脲的应用效果研究

Study on Application Effect of Urea Phosphate in Continuous Crystallization Process of Wet-Process Phosphoric Acid

为了掌握湿法磷酸连续结晶工艺生产的磷酸脲产品在盐碱土壤的应用效果,以垦农28大豆品种为材料,设置CK(不施磷肥)、TMAP(磷酸一铵)、UP(磷酸脲)和T8U2(磷酸一铵与磷酸脲质量比8∶2配施)四个处理,每个处理设置三个重复,通过大田试验,研究不同磷肥对大豆生长、光合及产量的影响。施用磷酸脲显著提高了大豆各生育期的鲜重、干重和株高,提高了花期光合能力,磷酸脲与工业一铵质量比8∶2配施T8U2处理增产效果最优。

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.