Absorption and Distribution of Nitrogen,Phosphorus and Potassium in High Yield and Quality Watermelon

doi:10.3321/j.issn:1000-7091.1996.03.022

Abstract

Abstract: During 1987-1989 field experiments showed that watermelon absorbed little N,P,K during the seedling stage but it gradually took more when the vining stage.A significant linear relation was found on the N absorption from vining to the first harvest,with the regression equation being:y=0.1419 x-5.3878,r=0.9971 ** .The plant gradually absorbed more P after setting and took even more K during flowering and fruiting stages.N P and K primarily contributed to the development and establishment of leaves and they also supported the growth of stems and roots before fruiting.After setting,N,P,K were gradually concentrated in the fruits.

Key words: Watermelon, Nitrogen, Phosphorus, Potasium, Natrition absorption, Nutrtion distribution

CLC Number:

S651.01

Shao Zhanhong, Li Zongquan, Wang Weian, Zhao Hongxian, Wang Xiannao, Cui Zhenguang, Zu Yaoting. Absorption and Distribution of Nitrogen,Phosphorus and Potassium in High Yield and Quality Watermelon[J]. ACTA AGRICULTURAE BOREALI-SINICA, 1996, 11(3): 112-116. doi: 10.3321/j.issn:1000-7091.1996.03.022.

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