Seasonal changes of soil and leaf nutrient levels in a <EM>Carya cathayensis </EM>orchard

TONG Gen-ping; WANG Wei-guo; ZHANG Yuan-yuan; XU Wen-xin; DOU Chun-ying; SHENG Wei-xing; YU Qing-ping; YE Zheng-qian

Volume 26 Issue 4

Aug. 2009

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Article Navigation > Journal of Zhejiang A&F University > 2009 > 26(4): 516-521

TONG Gen-ping, WANG Wei-guo, ZHANG Yuan-yuan, XU Wen-xin, DOU Chun-ying, SHENG Wei-xing, YU Qing-ping, YE Zheng-qian. Seasonal changes of soil and leaf nutrient levels in a Carya cathayensis orchard[J]. Journal of Zhejiang A&F University, 2009, 26(4): 516-521.

Citation:

TONG Gen-ping, WANG Wei-guo, ZHANG Yuan-yuan, XU Wen-xin, DOU Chun-ying, SHENG Wei-xing, YU Qing-ping, YE Zheng-qian. Seasonal changes of soil and leaf nutrient levels in a Carya cathayensis orchard[J]. Journal of Zhejiang A&F University, 2009, 26(4): 516-521.

Seasonal changes of soil and leaf nutrient levels in a Carya cathayensis orchard

1.
School of Environmental Sciences and Technology，Zhejiang Forestry College，Lin’an 311300，Zhejiang，China;
2.
Management Office，Mount Qingliangfeng National Nature Reserve of Zhejiang Province，Lin’an 311321，Zhejiang， China;
3.
Committee of River Management in Urban Area of Baoji City，Baoji 721003，Shaanxi，China

More Information

Corresponding author: YE Zheng-qian
Publish Date: 2009-08-20

Abstract

To understand current soil nutrient conditions for growth，nutrient status，and relationships between soil nutrients and growth of Carya cathayensis in limestone soils，soil samples and corresponding leaf and nut samples were collected from a C. cathayensis plantation in Daoshi Town of Zhejiang Province，China. Also，seasonal changes of soil and plant leaf nutrients were analyzed. Results showed that leaf N，P，and K decreased（P＜0.05） from flowering to nut maturity regardless of fertilizer topdressings. Thus，fruit is a strong sink for N，P and K nutrients. Soil organic matter and N，P，and K accumulated greatly compared to 10 years before（data from the reference）. Soil acidification was serious with soil pH decreasing to 4.5. Because of fertilization，soils generally maintained high levels of available N，P，and K，so responses of N，P，and K in tree leaves were not apparent. Also，even though fertilization provided sufficient nutrients，overdoses of NPK could cause detrimental increases in soil acidity and environmental pollution. Therefore leaf N，P and K recommendations for optimal growth and non-polluting，sustained production are necessary.［Ch，3 tab. 18 ref.］
- plant nutrition,
- Carya cathayensis,
- fertilization,
- soil nutrients,
- leaf nutrients

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通讯作者: 陈斌, bchen63@163.com

1.
沈阳化工大学材料科学与工程学院沈阳 110142

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Seasonal changes of soil and leaf nutrient levels in a Carya cathayensis orchard

1. School of Environmental Sciences and Technology，Zhejiang Forestry College，Lin’an 311300，Zhejiang，China;

2. Management Office，Mount Qingliangfeng National Nature Reserve of Zhejiang Province，Lin’an 311321，Zhejiang， China;

3. Committee of River Management in Urban Area of Baoji City，Baoji 721003，Shaanxi，China

Corresponding author: YE Zheng-qian

Publish Date: 2009-08-20

Key words:

Abstract: To understand current soil nutrient conditions for growth，nutrient status，and relationships between soil nutrients and growth of Carya cathayensis in limestone soils，soil samples and corresponding leaf and nut samples were collected from a C. cathayensis plantation in Daoshi Town of Zhejiang Province，China. Also，seasonal changes of soil and plant leaf nutrients were analyzed. Results showed that leaf N，P，and K decreased（P＜0.05） from flowering to nut maturity regardless of fertilizer topdressings. Thus，fruit is a strong sink for N，P and K nutrients. Soil organic matter and N，P，and K accumulated greatly compared to 10 years before（data from the reference）. Soil acidification was serious with soil pH decreasing to 4.5. Because of fertilization，soils generally maintained high levels of available N，P，and K，so responses of N，P，and K in tree leaves were not apparent. Also，even though fertilization provided sufficient nutrients，overdoses of NPK could cause detrimental increases in soil acidity and environmental pollution. Therefore leaf N，P and K recommendations for optimal growth and non-polluting，sustained production are necessary.［Ch，3 tab. 18 ref.］

Seasonal changes of soil and leaf nutrient levels in a Carya cathayensis orchard

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