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2007•Journal of Yangzhou UniversityRequires access

Effect of different kinds fertilizer and rate on nitrate accumulation dynamics of vegetables

Kang Jian-ban

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Abstract

Effect of different kinds fertilizer and quantity on nitrate accumulation of spinach and cabbage was studied.The highest nitrate accumulation appeared at 7-9 days after application when nitrogen rate was high and at 9-12 days after application when nitrogen rate was low.Spinach was better in using NO-3-N and cabbage was better in NH+4-N.Leaf stalk contained the highest nitrate content and the lowest in root.Nitration inhibitor DCD decreased nitrate accumulation of NH4NO3 and NH4Cl,but the quantity of NH4NO3 caused by DCD decreased much more dramstically.

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What this paper is about

Effect of different kinds fertilizer and quantity on nitrate accumulation of spinach and cabbage was studied.The highest nitrate accumulation appeared at 7-9 days after application when nitrogen rate was high and at 9-12 days after application when nitrogen rate was low.Spinach was better in using NO-3-N and cabbage was better in NH+4-N.Leaf stalk contained the highest nitrate content and the lowest in root.Nitration inhibitor DCD decreased nitrate accumulation of NH4NO3 and NH4Cl,but the quantity of NH4NO3 caused by DCD decreased much more dramstically.

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Available abstract

Effect of different kinds fertilizer and quantity on nitrate accumulation of spinach and cabbage was studied.The highest nitrate accumulation appeared at 7-9 days after application when nitrogen rate was high and at 9-12 days after application when nitrogen rate was low.Spinach was better in using NO-3-N and cabbage was better in NH+4-N.Leaf stalk contained the highest nitrate content and the lowest in root.Nitration inhibitor DCD decreased nitrate accumulation of NH4NO3 and NH4Cl,but the quantity of NH4NO3 caused by DCD decreased much more dramstically.

Key concepts: Spinach, Nitrate, Stalk, Chemistry, Nitrogen, Fertilizer, Animal science, Agronomy

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