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机构地区:[1]西北农林科技大学水利与建筑工程学院,陕西杨凌712100 [2]中国科学院水利部水土保持研究所,陕西杨凌712100
出 处:《灌溉排水学报》2011年第4期13-17,共5页Journal of Irrigation and Drainage
基 金:"十二五"863计划课题(2011AA100507);农业转化资金项目(2010GB2G000470)
摘 要:试验设2种不同量的空气(以土壤孔隙率50%为参照标准,设0.8,1.2二个通气系数),与3种不同的土壤水分(60%~70%、70%~80%、80%~90%田间持水率)结合,以不通气灌溉作为对照组。结果表明,通气处理可显著促进番茄植株生长,且除T2(通气系数为1.2,60%~70%田间持水率)处理外,其余通气灌溉处理的产量均比未通气灌溉处理增加20%左右。T3(通气系数为0.8,70%~80%田间持水率)处理番茄果实的Vc含量、可溶性固形物和糖酸比均比较高。故T3处理能显著增加番茄的产量,并能显著改善番茄果实品质。Non-ventilation irrigation used as control group, two different kinds of ventilation volume (50% of soil porosity as a reference standard, ventilation coefficients were set 0.8, 1.2) and with three different soil moisture (60%- 70%, 70%- 80%, 80%- 90% of field capacity) were set. The growth of tomato plants under ventilation irrigation treatment was significantly promoted. In addition to T2 treatment (ventilation coefficient is 1.2, 60 %-70% of field capacity), yields of the remaining ventilation irrigation were higher (20M) than non-ventilation irrigation. The content of Vitamin c, the content of solvable solid content and sugar-acid ratio was higher under T3 treatment (ventilation coefficient is 0.8, 70%-80% of field capacity). It is concluded that ventilation irrigation of T3 treatment could increase tomato yield and improve fruit quality significantly.
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