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硫膜和树脂膜控释尿素对小麦产量、品质及氮素利用率的影响
引用本文:马富亮,宋付朋,高杨,邹朋. 硫膜和树脂膜控释尿素对小麦产量、品质及氮素利用率的影响[J]. 应用生态学报, 2012, 23(1): 67-72
作者姓名:马富亮  宋付朋  高杨  邹朋
作者单位:山东农业大学资源与环境学院/作物生物学国家重点实验室/国家缓控释肥工程技术研究中心, 山东泰安 271018
基金项目:“十二五”国家科技支撑计划项目(2011BAD11B01,2011BAD11B02);国家“水土污染监测与防控技术引进与应用”项目(2011-G30);山东省优秀中青年科学家科研奖励基金项目(2007BS08016)资助
摘    要:通过田间试验,研究了硫膜和树脂膜控释尿素对小麦产量、品质和耕层土壤无机氮含量及氮素利用率的影响.结果表明:与普通尿素相比,硫膜和树脂膜控释尿素均能显著提高小麦籽粒产量和品质,增产幅度达10.4%~16.5%,小麦籽粒蛋白质和淀粉含量分别提高5.8%~18.9%和0.3%~1.4%;两种控释肥均能有效保持耕层土壤无机氮含量,且其氮素后移的功效满足了小麦生育后期对氮素的需求;有效提高了氮肥偏生产力,降低了土壤氮素依存率(降幅11.0%~17.3%),提高了氮素利用率(增幅58.2%~101.2%).其中,树脂膜控释尿素比硫膜控释尿素表现出更好的增产效应,实现了氮素的高效利用.

关 键 词:硫膜控释尿素  树脂膜控释尿素  产量  品质  氮素利用率  

Effects of sulfur- and polymer-coated controlled release urea fertilizers on wheat yield and quality and fertilizer nitrogen use efficiency
Ma Fu-Liang,Song Fu-Peng,Gao Yang,Zou Peng. Effects of sulfur- and polymer-coated controlled release urea fertilizers on wheat yield and quality and fertilizer nitrogen use efficiency[J]. The journal of applied ecology, 2012, 23(1): 67-72
Authors:Ma Fu-Liang  Song Fu-Peng  Gao Yang  Zou Peng
Affiliation:State Key Laboratory of Crop Biology/National Engineering Research Center for Slow/Controlled Release Fertilizers/College of Resources and Environment, Shandong Agricultural University, Tai’an 271018, Shandong, China
Abstract:A field experiment was conducted to study the effects of sulfur- and polymer-coated controlled release urea fertilizers on wheat yield and its quality, plow layer soil inorganic nitrogen (N) contents, and fertilizer N use efficiency. Compared with traditional urea fertilizer, both sulfur- and polymer-coated controlled release urea fertilizers increased the grain yield by 10.4%-16.5%, and the grain protein and starch contents by 5.8%-18.9% and 0.3%-1.4%, respectively. The controlled release urea fertilizers could maintain the topsoil inorganic N contents to meet the N requirement for the wheat, especially during its late growth stage. In the meantime, the fertilizer N use efficiency was improved by 58.2%-101.2%. Polymer-coated urea produced better wheat yield and higher fertilizer N use efficiency, compared with sulfur-coated controlled release urea.
Keywords:sulfur-coated controlled release urea  polymer-coated controlled release urea  yield  quality  nitrogen use efficiency.
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