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[1]NIE Bin,LI Wen-gang,JIANG Li-hua,et al.Effects of Different Irrigation Methods on Nitrate Nitrogen Distribution in Soil Profile and Irrigation Water Use Efficiency of Tomato in Greenhouse[J].Research of Soil and Water Conservation,2012,19(03):102-107.

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Effects of Different Irrigation Methods on Nitrate Nitrogen Distribution in Soil Profile and Irrigation Water Use Efficiency of Tomato in Greenhouse

Research of Soil and Water Conservation[ISSN 1005-3409/CN 61-1272/P] Volume: 19 Number of periods: 2012 03 Page number: 102-107 Column: Public date: 2012-06-20

Title:: Effects of Different Irrigation Methods on Nitrate Nitrogen Distribution in Soil Profile and Irrigation Water Use Efficiency of Tomato in Greenhouse

Author(s):: NIE Bin¹, LI Wen-gang², JIANG Li-hua³, ZHENG Fu-li³, LIN Hai-tao³, SONG Xiao-zong³, ZHAO Chang-xing⁴; 1. College of Resources and Environmental Science, Hu’nan Agricultural University, Changsha 410128, China;
2. Shandong Academy of Agricultural Sciences, Ji’nan 250100, China;
3. Institute of Agricultural Resources and Environment, Shandong Academy of Agricultural Sciences Ji’nan 250100, China;
4. Qingdao Agricultural University, Qingdao, Shandong 266109, China

Keywords:: irrigation method; greenhouse; tomato; nitrate nitrogen; water use efficiency

CLC:: S275

DOI:: -

Abstract:: In order to reveal the effects of different irrigation methods on water use efficiency (WUE) and nitrate nitrogen distribution in soil profile, the experiments were conducted in the solar greenhouse in Shouguang County of Shandong Province, and a local majorly-cultivated tomato variety Qidali was chosen as experimental material. Tomato yields, WUE, and nitrate nitrogen distribution in different soil layers (0-90 cm) were inverstigated with three irrigation methods including little and frequent furrow irrigation, drip irrigation and furrow (conventional) irrigation. The results showed that under the condition of drip-irrigation and little and frequent furrow-irrigation, compared to furrow (conventional) irrigation, irrigation water-saving rate were up to 36.0% and 16.7%, tomato yield increased by 11.3% and 15.5%, and WUE increased by 74.0% and 38.7%, respectively. The first two irrigation regimes in comparison with furrow irrigation also changed the nitrate nitrogen distribution in the soil profile, which led to more nitrate nitrogen reservation in the soil layers for crop reuse, and that reduced the risk of nitrate nitrogen leaching, and comsequenly it was of greatly importance to protect local groundwater environment.

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