Effects of Application of Nitrogen and Potassium Fertilizers on Available Nutrient,Water-soluble Salt in Soil and the Growth of Tomato

ZHAO Wen-yan; ZHANG Xiao-min; SHI Zong-lin; CHEN Zhu-jun; HAN Xue-xuan; WANG Xin-zeng; LI Jing

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Effects of Application of Nitrogen and Potassium Fertilizers on Available Nutrient,Water-soluble Salt in Soil and the Growth of Tomato

更新时间：2024-11-07

- Effects of Application of Nitrogen and Potassium Fertilizers on Available Nutrient,Water-soluble Salt in Soil and the Growth of Tomato
- Vol. 25, Issue 4, (2011)
- 作者机构：
  
  西北农林科技大学资源环境学院
- 作者简介：
- 基金信息：
- DOI：
  CLC：
- Published：2011
- 稿件说明：
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ZHAO Wen-yan, ZHANG Xiao-min, SHI Zong-lin, et al. Effects of Application of Nitrogen and Potassium Fertilizers on Available Nutrient,Water-soluble Salt in Soil and the Growth of Tomato[J]. 2011, 25(4).
DOI：

ZHAO Wen-yan, ZHANG Xiao-min, SHI Zong-lin, et al. Effects of Application of Nitrogen and Potassium Fertilizers on Available Nutrient,Water-soluble Salt in Soil and the Growth of Tomato[J]. 2011, 25(4). DOI：

摘要

通过土培盆栽模拟试验

研究氮、钾肥施用量对土壤有效养分、水溶性盐分及番茄生长的影响。结果表明:随着氮、钾肥施用量的增加

土壤NO3--N、速效钾及土壤水溶性盐分含量均显著增加

氮、钾肥施用量与土壤NO3--N、速效钾含量为极显著线性关系

每施纯氮0.1 g/kg土(相当于225 kg/hm2)

增加土壤NO3--N 50.5 mg/kg

每施K2O 0.1 g/kg土

土壤速效钾增加79.5 mg/kg;施氮对水溶性盐分含量的增加为施钾的2倍

土壤水溶性盐分含量超过0.8 g/kg后

盐分含量与番茄生物量、开花率呈极显著负相关关系

土壤盐分含量为0.9 g/kg时

显著抑制番茄生长并延迟其生育期

而叶绿素含量相对增加;番茄叶片中脯氨酸含量与土壤水溶性盐分含量间呈极显著正相关。日光温室栽培土壤盐分累积影响作物生长在外观上的隐蔽性应引起人们的重视。

Abstract

The effects of application of nitrogen and potassium fertilizers on available nutrients

water-soluble salt in soil and the growth of tomato were studied with an pot experimental method.The results showed that the contents of NO-3-N

available K

and water-soluble salt in soil were significantly increased as the increasing addition of N and K fertilizers.And there were significantly linear relationships between soil NO-3-N and rate of N fertilizer added

available K in soil and rate of K fertilizer added.Additi...

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