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Effect of Urease Inhibitor NBPT on Growth of Soybean Roots(PDF)

《大豆科学》[ISSN:1000-9841/CN:23-1227/S]

Issue:
2008年01期
Page:
92-96
Research Field:
Publishing date:

Info

Title:
Effect of Urease Inhibitor NBPT on Growth of Soybean Roots
Author(s):
SUN Qing-yuan1; ZHANG Xue-song2; ZHAO Lue1; and LIU Na1
1 College of Bio & Food Technology，Dalian Polytechnic University，Dalian 116034，Liaoning；
2College of Chemical Engineering and Material，Dalian Polytechnic University，Dalian 116034，Liaoning，China
Keywords:
Urease; NBPT; Soybean root growth; Soybean root nodule
PACS:
-
DOI:
10.11861/j.issn.1000-9841.2008.01.0092
Abstract:
Soybean roots and particular the symbiosis root nodules are vulnerable to the NH+4?and NH3?in the soil.NBPT as soil urease inhibitor has been known to inhibit the urease activity in the soil and therefore deduce the hydrolysis velocity of urea.The purpose of this study was to find a way to increase soybean growth using NBPT.In this study，NBPT mixed proportionally with urea and NBPT without urea were applied to the soybean plants to analyze the effect of NBPT on the soybean root growth in root vigor，root nodule number and weight，and the activity of nitrogen fixation of root nodule.Results showed that NBPT mixed proportionally with urea increased the soybean root vigor，root nodule number and weight，the root nitrogen (N) fixation activity，and therefore the root growth was increased by a high content of N in the soybean plant.NBPT as a fertilizer applied was beneficial to soybean root growth.However，the effect of NBPT used as a fertilizer for N was limited.

References:

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Last Update: 2014-10-09