Dynamics of Soil Nutrition and Soil Enzyme Activity and Their Relationships During Wheat Growth

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Dynamics of Soil Nutrition and Soil Enzyme Activity and Their Relationships During Wheat Growth

更新时间：2024-11-07

- Dynamics of Soil Nutrition and Soil Enzyme Activity and Their Relationships During Wheat Growth
- Issue 4, Pages: 27-30(2003)
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- Published：2003
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Dynamics of Soil Nutrition and Soil Enzyme Activity and Their Relationships During Wheat Growth[J]. 2003, (4): 27-30.
DOI：

Dynamics of Soil Nutrition and Soil Enzyme Activity and Their Relationships During Wheat Growth[J]. 2003, (4): 27-30. DOI：

摘要

研究了小麦生长期内土壤氮、钾与土壤过氧化氢酶(CAT)、脲酶(URE)、多酚氧化酶(PPO)活性变化及其相关性。结果表明

土壤速效氮(AN)、土壤速效钾(AK)和非交换性钾(NEK)含量随小麦生育进程呈现有规律的变化;土壤CAT、URE、PPO活性呈现先上升

但在拔节期到孕穗期出现峰值后逐渐下降

并渐趋平缓的变化规律。除小麦生长期内土壤AN、NEK与土壤PPO活性

小麦生长前、后期土壤NEK与URE活性

小麦生长后期AK与URE、PPO活性相关性不显著外

土壤AN、AK、NEK与土壤CAT、URE、PPO活性在小麦其它生长时期均显著或极显著相关。

Abstract

The dynamics of soil N and K nutrition and of the activities of soil catalase

urease and polyphenol oxidase

and their relationships during wheat growth were studied. The content of soil available N

available K and non-exchangeable K changed regularly with wheat growth. The activities of soil CAT

URE

PPO increased previously

reached a maximum during the jointing and heading stage

then decreased and gradually remained stable.No relationships were observed between the content of soil AN

NEK and soil PPO activity

the content of soil NEK and soil URE activity during the early and late period of wheat growth

the content of soil AK and soil URE

PPO activities during the late period of wheat growth

while the relationships between the content of soil AN

NEK and the activities of soil CAT

URE

PPO reached significant or extremely significant level during other periods of wheat growth.

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Dynamics of Soil Nutrition and Soil Enzyme Activity and Their Relationships During Wheat Growth

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XIONG Ming-biao~

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