Drip Irrigation Scheduling for Tomato Grown in Solar Greenhouse Based on Pan Evaporation in North China Plain
文献类型: 外文期刊
第一作者: Liu Hao
作者: Liu Hao;Duan Ai-wang;Sun Jing-sheng;Wang Yan-cong;Sun Chi-tao;Li Fu-sheng
作者机构:
关键词: drip irrigation;fruit quality;irrigation scheduling;tomato;water use efficiency;yield
期刊名称:JOURNAL OF INTEGRATIVE AGRICULTURE ( 影响因子:2.848; 五年影响因子:2.979 )
ISSN: 2095-3119
年卷期: 2013 年 12 卷 3 期
页码:
收录情况: SCI
摘要: This study has investigated the suitable drip irrigation scheduling for tomato grown in solar greenhouse based on 20-cm pan evaporation (E-pan) in North China Plain. Irrigation treatments included three irrigation frequencies (I-1 10, I-2 20 and I-3 30 mm, and irrigation interval of 2-6 d for I-1, 4-9 d for I-2 and 8-12 d for I-3) based on accumulated pan evaporation (E-pan), and four plant-pan coefficients (K-cp1 0.5, K-cp2 0.7, K-cp3 0.9 and K-cp4 1.1). Results indicate that total irrigation amount, seasonal crop evapotranspiration (ET) and tomato yield (Y) were 185.1-365.8 mm, 249.1-388.0 mm and 99.6-151.8 t ha(-1), respectively. Irrigation frequency and amount increased the yield, and second-degree polynomial relationship was found between Y and ET (R-2=0.8671). Irrigation frequency did not increase mean fruit weight, diameter and length significantly but increased fruit number, total soluble solids content (TSS), TSS yield, fruit firmness and water use efficiency (WUE) and irrigation WUE (IWUE) significantly. Irrigation amount increased external quality of tomato but reduced TSS content, TSS yield, fruit firmness, WUE and IWUE significantly. K-cp3 and K-cp4 treatments had the highest fruit yield, but K-cp2 and K-cp3 treatments had the highest WUE. I1Kcp3 treatment (irrigation interval of 2-6 d, and K-cp=0.9) had higher IWUE, WUE, external quality, yield, and TSS yield, so it is recommended as the suitable irrigation scheduling for tomato grown in solar greenhouse in North China Plain.
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