尿素酶抑制剂对大豆生长的影响

Effects of urease inhibitor on growth of soybean

研究了尿素酶抑制剂NBPT与尿素配合施用对大豆作物生长过程中种子出苗、大豆根瘤、植株全氮以及大豆产量因素的影响。结果表明,尿素配施NBPT能够有效抑制施用的尿素前期对幼苗的毒害作用并且增加了尿素氮对大豆作物作用的有效性,使出苗率可提高20.00%,植株对N的吸收能力可提高18.23%,促进大豆根瘤生长,从而提高大豆单产。

This paper reports the experimental study on the effects of urease inhibitor （NBPT）, accompanied with urine, for the following factors in soybean growing process： nodule, total N content, and soybean yield. The results reveal that the use of the urease inhibitor NBPT with urea is effective in reducing seedling damage from urea fertilizer and increasing the utilization of the urea fertilizer. The seedling is increased by 20%, N uptake up increased by 18.23%. It is beneficial to roots nodule growing. and soybean yield improving.