棉花与不同作物同穴互作育苗对土壤微生物、 酶活性和根系分泌物的影响

李伶俐, 黄耿华, 李彦鹏, 杨铁钢. 棉花与不同作物同穴互作育苗对土壤微生物、 酶活性和根系分泌物的影响[J]. 植物营养与肥料学报, 2012, 18(6): 1478-1486. DOI: 10.11674/zwyf.2012.12120

引用本文: 李伶俐, 黄耿华, 李彦鹏, 杨铁钢. 棉花与不同作物同穴互作育苗对土壤微生物、 酶活性和根系分泌物的影响[J]. 植物营养与肥料学报, 2012, 18(6): 1478-1486. DOI: 10.11674/zwyf.2012.12120

LI Ling-li, HUANG Geng-hua, LI Yan-peng, YANG Tie-gang. Effects of mutual aid grow seedlings of cotton with other crops in the sameaperture on soil microorganisms quantity, enzyme activity and root secretion[J]. Journal of Plant Nutrition and Fertilizers, 2012, 18(6): 1478-1486. DOI: 10.11674/zwyf.2012.12120

Citation: LI Ling-li, HUANG Geng-hua, LI Yan-peng, YANG Tie-gang. Effects of mutual aid grow seedlings of cotton with other crops in the sameaperture on soil microorganisms quantity, enzyme activity and root secretion[J]. Journal of Plant Nutrition and Fertilizers, 2012, 18(6): 1478-1486. DOI: 10.11674/zwyf.2012.12120

棉花与不同作物同穴互作育苗对土壤微生物、 酶活性和根系分泌物的影响

李伶俐,  黄耿华2,  李彦鹏3,4,  杨铁钢3,4*, ,  1.

河南农业大学农学院,河南郑州 450002;

2.

濮阳市经济作物工作站,河南濮阳 457000;

3.

河南省农业科学院经济作物研究所,河南郑州 450002;

4.

河南省农业科学院农业部中原地区作物栽培科学观测试验站,河南郑州 450002

详细信息

通讯作者:

杨铁钢

计量 文章访问数:  03995 HTML全文浏览量:  0328 PDF下载量:  01140 出版历程 收稿日期:  2012-03-19 修回日期:  2012-09-06 刊出日期:  2012-11-24

Effects of mutual aid grow seedlings of cotton with other crops in the sameaperture on soil microorganisms quantity, enzyme activity and root secretion

1.

College of Agronomy,Henan Agricultural University,Zhengzhou 450002,China;

2.

Puyang Station of Economy Crops,Puyang,Henan 457000,China;

3.

Economy Crop Research Institute,Henan Academy of Agricultural Sciences;Zhengzhou 450002,China;

4.

Ministry of Agriculture’s Scientific Observing and Experimental Station of Crop Cultivation in Central Plains,Henan Academyof Agricultural Sciences,Zhengzhou 450002,China

More Information

Corresponding author:

YANG Tie-gang

摘要

摘要: 为了探明两苗互作育苗提高棉苗素质的机理，本试验在塑料温棚2030℃、 自然光照条件下，采用532280 mm2具有200方形孔的塑料育苗盘，用土壤作基质，以棉花单作育苗为对照，研究了棉花分别与小麦、 玉米、 谷子和高粱同穴互作育苗对土壤微生物、 酶活性及根系分泌物的影响。结果表明， 随互作苗的加入，育苗土壤中细菌和放线菌数量显著增加，真菌数显著降低; 脱氢酶、 中性磷酸酶、 转化酶和脲酶活性显著提高; 2,4-二叔丁基苯酚、 2,6-二叔丁基苯酚、 邻苯二甲酸二丁酯和9-16碳烯酸甲酯根系分泌物的积累量显著减少，棉苗则表现为根系活力、 叶片可溶性糖含量和ATP含量显著提高，增加了棉苗根重、 苗重和侧根数，棉苗离床存活期延长，栽后缓苗期缩短。在四种互作处理中，以棉花+小麦、 棉花+谷子处理中棉苗素质表现较好。综上，两苗同穴互作育苗改善了育苗土壤微生物数量和结构，这可能是提高土壤酶活性和降低土壤有害根系分泌物积累的主要原因，进而提高了棉苗素质。

Abstract: To reveal the mechanism of promoting the growth of cotton seedlings using other seedlings, effects of mutual aid grow seedlings of cotton with wheat, maize, millet and sorghum separately in the same aperture on soil microorganisms quantity and enzyme activity and root secretion were studied using 532 mm280 mm lastic tray with 200 square holes full of soil under greenhouse and natural light condition. The results indicated that the amounts of soil bacteria and actinomyces under the mutual aid grow seedlings of cotton with other crops in the same apertures are significantly increased, while the amounts of soil fungi are significantly decreased. The activities of soil dehydrogenase, neutral phosphatase, zymose and urease are increased significantly, and the accumulations of 2,4-ditertbutylphenol, 2,6-ditertbutylphenol, dibutyl phthalate and methyl palmitoleate are decreased significantly, which results in the increases of root vitality, the contents of soluble sugar and ATP in the leaves, the weights of cotton seedlings and roots and the number of lateral roots. Moreover, survive days depart from seedbed are increased, while the convalescent period of seedlings after transplanting are shortened compared with that in single cotton seedling treatment. Among the treatments, wheat and millet are the best choices to promote the growth of cotton seedlings. In conclusion, the mutual aid grow seedlings of two different crops in the same aperture can improve the soil microbial structure and amount, and the cotton seedling quality these are possibly primary causation of the increases of the soil enzyme activities and the decreases of the accumulation of harmful root exudates.

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计量 文章访问数:  HTML全文浏览量:  PDF下载量:  出版历程 收稿日期:  2012-03-19 修回日期:  2012-09-06 刊出日期:  2012-11-24

目录

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