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篇目详细内容 |
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【篇名】 |
Influence of maize straw amendment on soil-borne diseases of winter wheat |
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【刊名】 |
Frontiers of Agriculture in China |
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【刊名缩写】 |
Front. Agric. China |
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【ISSN】 |
1673-7334 |
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【EISSN】 |
1673-744X |
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【DOI】 |
10.1007/s11703-009-0003-4 |
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【出版社】 |
Higher Education Press and Springer-Verlag |
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【出版年】 |
2009 |
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【卷期】 |
3
卷1期 |
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【页码】 |
7-12
页,共
6
页 |
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【作者】 |
Wenchao ZHEN;
Shutong WANG;
Chengyin ZHANG;
Zhiying MA;
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【关键词】 |
maize straw; winter wheat; soil-borne disease; soil microbe |
【摘要】 |
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A field experiment was conducted during the 2006—2007 wheat growing season at Baoding, Hebei Province, China, aiming at exploring the influence of different amendment rates of maize straw on winter wheat soil-borne diseases induced by Rhizoctonia cereali, Gaeumannomyces graminis and Bipolaris sorokiniana in field conditions. Wheat root vitality, ion infiltration, SOD activity, MDA content and microbial population of the tillage layer were measured. The results showed that the occurrence of three soil-borne diseases tested was significantly different under different amendment rates. During the greening stage and jointing stage, the disease indexes of three soil-borne diseases were reduced significantly by treatments at the maize straw amendment rates of 7500kg．hm–2 and 3750kg．hm–2. However, disease indexes of wheat common rot and sharp eyespot increased dramatically when the amendment rate increased to 15000kg．hm–2. At the amendment rate of 15000kg．hm–2, wheat root vigor and SOD activity decreased, and ion infiltration and cell membrane-lipid peroxidation level increased, respectively. In the meantime, higher amounts of bacteria and actinomycetes were recorded in the 7500kg．hm–2 amendment rate treatment, while a higher amount of fungi was recorded in the 15000kg．hm–2 amendment rate treatment. |
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