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[1]杨珍平,郝教敏,苗果园.混作在黄土母质生土改良中的应用[J].应用与环境生物学报,2011,17(03):388-392.[doi:10.3724/SP.J.1145.2011.00388]
 YANG Zhenping,HAO Jiaomin,MIAO Guoyuan.Utilization of Mixture Cropping to Improve Immature Loess Soil[J].Chinese Journal of Applied & Environmental Biology,2011,17(03):388-392.[doi:10.3724/SP.J.1145.2011.00388]
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混作在黄土母质生土改良中的应用()
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《应用与环境生物学报》[ISSN:1006-687X/CN:51-1482/Q]

卷:
17卷
期数:
2011年03期
页码:
388-392
栏目:
研究论文
出版日期:
2011-06-24

文章信息/Info

Title:
Utilization of Mixture Cropping to Improve Immature Loess Soil
作者:
杨珍平郝教敏苗果园
(1山西农业大学农学院 太谷 030801)
(2山西农业大学食品学院 太谷 030801)
Author(s):
YANG Zhenping HAO Jiaomin MIAO Guoyuan
(1College of Agriculture, Shanxi Agricultural University, Taigu 030801, Shanxi, China)
(2College of Food Science and Engineering, Shanxi Agricultural University, Taigu 030801, Shanxi, China)
关键词:
混作黄土母质生土土壤改良土壤微生物土壤酶土壤营养
Keywords:
mixture cropping immature loess subsoil soil improvement soil microbe soil enzyme activity soil nutrition
分类号:
S344 : S156
DOI:
10.3724/SP.J.1145.2011.00388
文献标志码:
A
摘要:
以黄土母质生土为供试土壤,采用盆栽试验,研究小麦与3种豆科牧草及油菜混作对根际土壤生物活性及土壤营养的影响. 结果表明,黄土母质生土混作较单作可显著促进根际土壤微生物的繁衍、酶活性及土壤营养的提高,且在混作根土系统中,三大微生物种群数量、多种土壤酶活性以及土壤N、P、有机质营养之间均存在显著或极显著的正向相关关系. 4种混作处理以豌/麦根际土壤综合效应较好,可作为生土改良的首选混播作物. 结果还显示,在小麦生长期内,混作根际微生物数量与酶活性及根际土壤营养均随生育进程呈前低—中高—后低的抛物线变化. 研究为混作复合群体应用于黄土母质生土地改良提供了理论参考. 图3 表1 参23
Abstract:
In order to investigate the effect of mixture cropping on the improvement of immature loess subsoil, four kinds of potted mixture cropping were applied as: Wheat (Triticum aestivum) + rape (Brassica campestris), wheat + pea (Pisum sativum), wheat + alfalfa (Medicago sativa) and wheat + trefoil (Trifolium pratense) to study the biological activity and nutrition in the immature loess subsoil. The results showed that mixture cropping promoted significantly multiplication of rhizospheric microbes, and increased enzyme activity and soil nutrition in the immature loess subsoil compared with monoculture. In the root-soil systems of mixture cropping, there were significant or extremely significant positive correlation among three types of main microbes, enzyme activities and N, P and organic matters in soil. The type of wheat + pea mixture cropping was the best choice to improve immature loess subsoil because of its comprehensive rhizospheric effects. The results also showed that the rhizospheric microbe quantity, enzyme activity and soil nutrition changed regularly with parabolic curve of lower—higher—lower at wheat growth stage. The study provided theoretical pattern for improving immature loess subsoil under mixture cropping. Fig 3, Tab 1, Ref 23

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备注/Memo

备注/Memo:
山西省自然科学基金项目(No. 991102)和山西省青年科技研究基金项目(No. 20031047)资助
更新日期/Last Update: 2011-06-23