华北农学报 ›› 2007, Vol. 22 ›› Issue (5): 86-89. doi: 10.7668/hbnxb.2007.05.021

所属专题: 蔬菜专题

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钾营养对地膜覆盖小南瓜光合特性和产量的影响

黄伟1, 张俊花1, 陈建新1, 张立峰2   

  1. 1. 河北北方学院园艺系, 河北 宣化 075131;
    2. 河北农业大学农学院, 河北 保定 071001
  • 收稿日期:2007-02-16 出版日期:2007-10-28
  • 作者简介:黄伟(1970-),男,湖北天门人,副教授,硕士,主要从事蔬菜栽培和设施园艺的教学、科研与推广工作。
  • 基金资助:
    国家重点基础研究项目(G2000018606);国家防沙治沙应急计划项目(FS2000-03);河北省“十五”重点科技攻关项目(03220134D)

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

HUANG Wei1, ZHANG Jun-hua1, CHEN Jian-xin1, ZHANG Li-feng2   

  1. 1. Department of Horticulture, Hebei North University, Xuanhua 075131, China;
    2. College of Agronomy, Hebei Agricultural University, Baoding 071001, China
  • Received:2007-02-16 Published:2007-10-28

摘要: 研究了不同钾肥用量对地膜覆盖小南瓜光合特性和产量的影响。结果表明:施用钾肥能够提高小南瓜叶片的光合速率,在一定程度上可以降低小南瓜叶片的蒸腾速率。也能使茎秆粗壮,有效地促进单位叶面积内干物质的积累,明显提高小南瓜的产量。在本试验范围内,小南瓜的田间适宜施钾量(K2O)为121.5 kg/hm2

关键词: 钾营养, 小南瓜, 地膜覆盖, 产量, 光合特性

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

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引用本文

黄伟, 张俊花, 陈建新, 张立峰. 钾营养对地膜覆盖小南瓜光合特性和产量的影响[J]. 华北农学报, 2007, 22(5): 86-89. doi: 10.7668/hbnxb.2007.05.021.

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.