文献类型： 外文期刊

作者： Yan Li ² ; Zhang Yingpeng ¹ ; Liu Zhaohui ¹ ; Zhong Ziwen ¹ ; Sun Ming ¹ ;

作者机构： 1.Shandong Acad Agr Sci, Inst Agr Resources & Environm, Jinan, Peoples R China

2.Minist Agr, Key Lab Agroenvironm Huang Huai Hai Plain, Jinan, Peoples R China

3.Shandong Prov Key Lab Agr Nonpoint Source Pollut, Jinan, Peoples R China

4.Shandong Prov Key Lab Plant Nutr & Fertilizer, Jinan 250100, Peoples R China

期刊名称：JOURNAL OF PLANT NUTRITION （ 影响因子：1.707； 五年影响因子：1.645 ）

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收录情况： SCI

摘要： A hydroponic culture was used to study different nitrogen and calcium supply patterns on biomass, nutritive, and safety quality of spinach seven days before harvesting. The results showed that the complete or partial withdrawal of nitrogen (N) and calcium (Ca) nutrient decreased spinach biomass compared to control (CK). At the same time, the withdrawal of N and Ca supply before harvesting increased vitamin C contents and decreased nitrate and oxalate content in edible parts of spinach. The decrease in spinach biomass could be partially compensated by the increase of the nutritive and safety quality of spinach and the reduced use of N and Ca nutrients