Effects of Nitrogen and Calcium Nutrition Withdrawal Before Harvesting on Biomass and Nutritive and Safety Quality in Spinach (Spinacia Oleracea L.)

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 comp...

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Bibliographic Details
Published in:Journal of plant nutrition Vol. 37; no. 14; pp. 2270 - 2280
Main Authors: Li, Yan, Yingpeng, Zhang, Zhaohui, Liu, Ziwen, Zhong, Ming, Sun
Format: Journal Article
Language:English
Published: Philadelphia Taylor & Francis 06.12.2014
Taylor & Francis Ltd
Subjects:
ascorbic acid
Biomass
Calcium
harvesting
Hydroponics
nitrate
nitrates
Nitrogen
nitrogen and calcium nutrition
Nutrients
Nutrition
oxalate
Safety
Spinach
Spinacia oleracea
Vegetables
Vitamin C
withdrawal
ISSN:0190-4167, 1532-4087, 1532-4087
Online Access:Get full text
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Summary: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.
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ISSN:0190-4167
1532-4087
1532-4087
DOI:10.1080/01904167.2014.920387