Effect of Position Fertilization on Soil Nutrient of Heku Soil Profile

DANG Tinghui; HAO Mingde; LI Qing; PENG Lin

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Effect of Position Fertilization on Soil Nutrient of Heku Soil Profile

- Effect of Position Fertilization on Soil Nutrient of Heku Soil Profile
- Bulletin of Soiland Water Conservation Vol. 14, Issue 6, Pages: 28-33(1995)
- 作者机构：
  
  中国科学院水利部水土保持研究所
- 作者简介：
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- Published：1995
- 稿件说明：
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DANG Tinghui, HAO Mingde, LI Qing, et al. Effect of Position Fertilization on Soil Nutrient of Heku Soil Profile[J]. Bulletin of Soiland Water Conservation, 1995, 14(6): 28-33.
DOI：

DANG Tinghui, HAO Mingde, LI Qing, et al. Effect of Position Fertilization on Soil Nutrient of Heku Soil Profile[J]. Bulletin of Soiland Water Conservation, 1995, 14(6): 28-33. DOI：

摘要

根据9年的田间定位试验资料

我们分析了9种不同施肥处理黑垆土耕层(0~20cm)?古耕层(20~50cm)和垆土层(50~80cm)三层土壤养分的变化?结果表明:施肥对黑垆土剖面养分的影响随深度的增加而减弱

一般为

耕层>古耕层>垆土层?不同处理耕层土壤养分差异比较明显

耕层以下土层尽管差异减小

但其养分变化与耕层趋势一致?各层土壤速效养分对照比裸地均有下降?综合评价施肥对黑垆土剖面的培肥效果

NPM>M>PM?

Abstract

Based on data of 9 years field position test

we analysed the soil nutrient's change ofthree Helu soil layer under different treatments of fertilization.The results showed that the effectof fertilization on Helu soil layer's nutrient decreases with depth increasing(generally

0～20cm20～50cm 50～80cm).The nutrient's difference of topsoil is the biggest under differenttreatments

even though the nutrient's difference of the layers below topsoil is on the decrease

but their change tendency is the same as topsoil's.Compared with rare land

available nutrient ofsoil layers under CK are decreased.To evaluate comprehensively

the effect that different treat-ments improved soil fertility is NPMMPM

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