The Effect of Potassium Nutrition on Yield and Photosynthetic Characteristic of Small Cushaw under Plastic Film Mulch Cover

doi:10.7668/hbnxb.2007.05.021

Abstract

Abstract: This paper studied the effect of potassium nutrition on yield and photosynthetic characteristic of small cushaw under plastic film mulch cover. The result showed that photosynthetic rate in leaves of small cushaw increased and transpiration rate decreased as applying potassium fertilizer. The stem wide and SLA and yield of small cushaw were significantly increased, too. The optimum fertilizer potassium level was 121.5 kg/hm² in this study.

Key words: Potassium nutrition, Small cushaw, Plastic film mulch cover, Yield, Photosynthetic characteristic

CLC Number:

S642.1

HUANG Wei, ZHANG Jun-hua, CHEN Jian-xin, ZHANG Li-feng. The Effect of Potassium Nutrition on Yield and Photosynthetic Characteristic of Small Cushaw under Plastic Film Mulch Cover[J]. ACTA AGRICULTURAE BOREALI-SINICA, 2007, 22(5): 86-89. doi: 10.7668/hbnxb.2007.05.021.

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http://www.hbnxb.net/EN/Y2007/V22/I5/86

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