中国农业科技导报2018，Vol.20Issue(6)：96-103,8.DOI:10.13304/j.nykjdb.2017.0884
不同类型尿素配施对加工番茄产量、品质及氮肥利用率的影响
Influence of Different Types of Urea on the Yield, Quality and Nitrogen Use Efficiency of Processing Tomato
摘要
Abstract
In order to clarify the best application amount of nitrogen fertilizer and matching effects of controlled release urea with common urea, this paper studied the effects of different nitrogen treatments on yield, quality and nitrogen use efficiency of processing tomato and soil nitrogen content at Hetao Irrigation District. The results showed that compared with the non fertilization, after applying nitrogen fertilizer the yield of fruit increased averagely by 99. 7％and soluble solids increased by 0.34％ ～ 1.34％. The nitrogen utilization rate of applying slow-release urea was even higher. 100％ recommended N application in slow-release urea or slow-release urea combined with common urea, the nitrogen utilization rate was 15. 2％ ～ 20. 2％ higher than that of single application of urea nitrgen fertilizer. 80％recommended N application by slow-release urea or combined with common urea, the nitrogen utilization rate was 20.3％ ～ 21. 8％ higher than that of single application of urea nitrgen fertilizer. Applying slow-release urea or slowrelease urea combined with normal urea could reduce the amount of nitrogen by 20％. By this way, the yield of processing tomato was significantly improved, and utilization rate of fertilizer was also increased. Among all treatments, 100％ recommended nitrogen fertilizer taking 60％ slow-release as base fertilizer, 20％ urea as top application during flowering stage, 20％ urea as topdressing during fruit swelling period had the highest yield, best economic benefit, and highest utilization rate of nitrogen fertilizer. There was no nitrogen residual in 20 ～ 40 cmsurface soil and no nitrogen leaching loss in 20 ～ 40 cm soil.关键词
加工番茄/缓释尿素/产量/氮肥利用率Key words
processing tomato/controlled release urea/yield/nitrogen utilization分类
农业科技引用本文复制引用
国世佳,段玉,张君,张润生,史有国..不同类型尿素配施对加工番茄产量、品质及氮肥利用率的影响[J].中国农业科技导报,2018,20(6):96-103,8.基金项目
国家重点研发计划项目(2016YFD0200100) （2016YFD0200100）
国际植物营养研究所(IPNI)中国项目部项目(IPNI-2015-CHN-IM02)资助. （IPNI）
