应用生态学报2011,Vol.22Issue(2):395-401,7.
再生水灌溉对黄瓜和西红柿养分元素分布特征及果实品质的影响
Effects of irrigation With treated wastewater on nutrient distribution in cucumber and tomato plants and their fruit quality.
摘要
Abstract
A field experiment was conducted to investigate the effects of irrigation with treated wastewater on the nutrient distribution in cucumber and tomato plants and their fruit quality. Irrigation with treated wastewater promoted tomato growth significantly, but had definite inhibition effect on cucumber growth. After the irrigation with treated wastewater. the nitrogen in plants had the characteristics of upward translocation , potassium was easily to be accumulated in cucumber leaf but not accumulated in tomato root. and sodium was mostly accumulated in root but less enriched in leaf, not giving damage to the plants. No significant effects were observed on the distribution of calcium, magnesium, and chlorine in plants. Under the irrigation with treated wastewater. the overall quality of cucumber and tomato fruits was less affected. The nitrate concentration in cucumber and tomato fruits was increased by 5.3% and 32. 9% . respectively, but still lower than the state food safety standard of China.关键词
再生水灌溉/黄瓜/西红柿/养分元素/品质分类
农业科技引用本文复制引用
薛彦东,杨培岭,任树梅,刘洪禄,吴文勇,苏艳平,方延旭..再生水灌溉对黄瓜和西红柿养分元素分布特征及果实品质的影响[J].应用生态学报,2011,22(2):395-401,7.基金项目
水利部公益性行业科研专项(200701025)和国家自然科学基金项目(50979107)资助. (200701025)