控失BB肥在小麦上的应用效果

Application Effect of Controlled-Release BB Fertilizers on Wheat

为了验证控失BB肥的优越性并发现其在施用过程中存在的问题,为进一步改进控失尿素产品提出建议,对控失BB肥在小麦上的应用效果进行了大田试验和示范处理。试验结果表明,控失BB肥能有效提高氮肥利用率,但氮肥利用率随氮肥使用量的增加而下降。示范结果表明,控失BB肥比普通BB肥处理小麦增产372.0 kg/hm^2,增产率4.7%。

In order to verify the superiority of controlled-release BB fertilizer and to find problems existing in application, and to make suggestions for further improving controlled-release urea products, the field experiment and treatment demonstration of controlled-release BB fertilizer application effect on wheat are carried out. Experimental results show that controlled-release BB fertilizer can improve utilization ratio of nitrogen fertilizer effectively, but nitrogen fertilizer utilization ratio decreases with the increase in amount of nitrogen fertilizer used. Treatment demonstration results show that with controlled-release BB fertilizer the wheat yield increases by 372. 0 kg/hm^2 than that of common BB fertilizer, the rate of growth is 4. 7%.