张彦,刘小刚,张富仓,李志军,戈振扬,杨启良.交替灌溉条件下水氮供给对番茄生长及水分利用的影响[J].干旱地区农业研究,2013,31(1):71~75
交替灌溉条件下水氮供给对番茄生长及水分利用的影响
Effects of water and nitrogen supply on growth and water use of tomato under controlled root divided alternative irrigation
  
DOI：10.7606/j.issn.1000-7601.2013.01.14
中文关键词:  交替灌溉  水氮供给  番茄  生长特性  产量  水分利用
英文关键词:controlled root-divided alternative irrigation (CRDI)  water and nitrogen supply  tomato  growth characters  yield  water use
基金项目:国家自然科学基金资助项目（50879073，51109102 ，51009073）；水利部公益项目(201101042)；十二五863项目（2011AA100504）；云南省应 用基础研究资助项目（2010ZC043）和云南省教育厅重点项目（2011Z035）
作者单位
张彦 昆明理工大学现代农业工程学院， 云南 昆明 650500 
刘小刚 昆明理工大学现代农业工程学院， 云南 昆明 650500 
张富仓 西北农林科技大学旱区农业水土工程教育部重点实验室， 陕西 杨凌 712100 
李志军 西北农林科技大学旱区农业水土工程教育部重点实验室， 陕西 杨凌 712100 
戈振扬 昆明理工大学现代农业工程学院， 云南 昆明 650500 
杨启良 昆明理工大学现代农业工程学院， 云南 昆明 650500 
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中文摘要:
      为探讨控制性分根区交替灌溉条件下不同水氮供给对 作物生长特性的影响，采用番茄盆栽试验，研究了交替灌溉和水氮处理对番茄生长、产量和 水分利用的影响。结果表明：交替灌溉方式下，低氮处理的番茄株高较大；高水低氮和低水 中氮处理的茎粗较大；中氮处理的干物质累积总量分别是高氮和低氮的1.25倍和1.01倍。交 替灌溉高水处理的水分利用效率均值分别是交替灌溉低水处理和常规充分灌水处理的1.05倍 和1.12倍。交替灌溉增加根冠比7.89%～31.61%。常规充分灌水处理的产量均值最大，分别 是交替高水和交替低水的1.05倍和1.39倍。在交替灌水条件下，中氮处理的耗水量分别是低 氮和高氮的1.04倍和1.16倍。
英文摘要:
      In order to find out the influence of different water and nitrogen supply to growth characteristics of crops under the controlled root-divided alternative irrigation (CRDI), a pot experiment was conducted to a nalyze the growth, yield and water use efficiency of tomato under the treatments of CRDI as well as water and nitrogen supply. The results indicated that, under CRDI, the plant height of low nitrogen treatment was high, the stem diameter of high water and low nitrogen treatment or low water and middle nitrogen treatmen t was high, and the dry mass accumulation of medium nitrogen treatment was 1.25 and 1.01 times that of high nitrogen treatment and low nitrogen treatment, respe ctively. The mean water use efficiency of high water treatment with CRDI was 1.0 5 and 1.12 times that of low water treatment with CRDI and high water treatment with conventional irrigation respectively. CRDI could increase root-shoot ratio by 7.89%～31.61%. The mean yield of high water treatment with conventional irri gation was the highest, which was 1.05 and 1.39 times that of high water tre atme nt with CRDI and low water treatment with CRDI respectively. Under CRDI, the wat er consumption of medium nitrogen treatment was 1.04 and 1.16 times that of low nitrogen treatment and high nitrogen treatment respectively.
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