文章摘要
陈仙仙, 王趁义, 黄兆玮, 付佳佳, 汪少奇.第四类配合物型脲酶抑制剂对油菜生长及土壤氮素转化的影响[J].水土保持学报,2019,33(4):180~186
第四类配合物型脲酶抑制剂对油菜生长及土壤氮素转化的影响
Effects of the Fourth Type of Complex Urease Inhibitors on Rapeseed Growth and Soil Nitrogen Transformation
投稿时间:2019-01-05  
DOI:10.13870/j.cnki.stbcxb.2019.04.026
中文关键词: 第四类脲酶抑制剂  Schiff碱配合物  油菜  氮肥利用率  表观硝化率
英文关键词: the fourth type of urease inhibitor  Schiff base complex  rapeseed  nitrogen utilization rate  apparent nitrification rate
基金项目:国家自然科学基金项目(31071856,3197180798);浙江省自然科学基金项目(LY16C150002,Z20C150003);浙江省"生物工程"一流学科开放基金项目(KF2018004);浙江省重中之重学科"生物工程"学生创新项目(CX2017002);国家级大学生创新创业训练计划项目(201810876047X);浙江省公益性技术应用研究项目(2010C32060)
作者单位E-mail
陈仙仙1, 王趁义1,2, 黄兆玮1, 付佳佳1, 汪少奇1 1. 浙江万里学院生物与环境学院, 浙江 宁波 315100

2. 宁波晟乾环境技术开发有限公司
, 浙江 宁波 315100 
wcyxz@163.com 
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中文摘要:
      研究不同浓度第四类新型Schiff碱配合物型脲酶抑制剂对油菜生长及其对土壤氮素转化的影响,旨在为此类新型脲酶抑制剂在农业上的推广应用提供依据。采用室外盆栽方法,比较新型脲酶抑制剂(SU)和市售脲酶抑制剂乙酰氧肟酸(AHA)对油菜产量、品质、生长状况、氮素吸收利用和土壤表观硝化率等指标的影响。结果表明:SU和AHA均能提高油菜产量,提高油菜品质指标和养分指标,其中SU对油菜增产和养分增效的效果比AHA明显;SU平均提高油菜产量28.0%,显著降低油菜硝酸盐含量28.8%~50.8%,同时促进油菜对氮、磷的吸收,使氮肥利用率平均提高68.0%,在一定程度也能降低土壤表观硝化率,平均降低35.2%。不同浓度新型抑制剂处理的油菜指标和抑制尿素水解效果不同,表现为低中浓度的抑制剂对油菜增产和养分增效效果优于高浓度,其中抑制剂用量为纯氮施入量的1%时对尿素水解抑制的效果最好,因此施入纯氮量的1%为此类抑制剂的最佳用量。
英文摘要:
      The effects of the fourth type of Schiff base complex urease inhibitors with different concentrations on rape growth and soil nitrogen transformation were studied to provide a basis for the promotion and application of such novel urease inhibitors in agriculture. The effects of new urease inhibitor (SU) and commercially available urease inhibitor acetohydroxamic acid (AHA) on the yield, quality, growth, nitrogen uptake and utilization of rapeseed and apparent nitrification rate of soil were compared through outdoor potting methods. The results showed that SU and AHA both could increase rapeseed yield and improve quality index and nutrient index of rapeseed, but SU had a better effect on increasing yield and nutrient efficiency of rapeseed than AHA. SU increased the yield of rapeseed by 28.0% on average, and significantly reduced the nitrate content by 28.8%~50.8%. At the same time, it promoted the absorption of nitrogen and phosphorus in rapeseed, the utilization rate of nitrogen fertilizer increased by about 68.0% on average, and also reduced the apparent nitrification rate of soil by about 35.2% on average. The novel inhibitors with different concentrations had different effects on the indicators of rapeseed and the inhibition of urea hydrolysis. The effects of low-medium concentration inhibitors on rapeseed yield increasing and nutrient efficiency were better than those of high concentration inhibitors, and the inhibitory effect of inhibitors on the urea hydrolysis was the best when the amount of inhibitor was 1% of pure nitrogen application, so the best amount of inhibitor was 1% of pure nitrogen.
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