| 不同栽培模式对玉米大斑病发生和流行的影响 |
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| 引用本文： | 于舒怡,傅俊范,周如军,康晓军,刘博.不同栽培模式对玉米大斑病发生和流行的影响[J].玉米科学,2011,19(1):132-135. |
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| 作者姓名： | 于舒怡 傅俊范 周如军 康晓军 刘博 |
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| 作者单位： | 沈阳农业大学植物保护学院,沈阳,110161 |
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| 基金项目： | 国家粮丰工程项目“东北平原南部(辽宁)春玉米丰效技术集成研究与示范”(2006BAD02A12) |
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| 摘 要： | 2009年对四平地区不同栽培模式下玉米大斑病自然发病情况进行调查。分析表明,Logistic模型能够反映大斑病流行时间动态情况。免耕模式有利于玉米大斑病的发生,而在宽窄行模式下该病发生较轻。不同栽培模式下玉米大斑病的指数增长期不同,在免耕模式下的病情指数最高,依次为免耕、平播、常规、宽窄行栽培模式,该时期也是最佳药剂防治时间。玉米大斑病流行过程中的病情严重程度依次为免耕>平播>常规>宽窄行。
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| 关 键 词： | 玉米大斑病 栽培模式 病害流行 |
| 收稿时间： | 2010/5/28 0:00:00 |
Effects of Different Cultivation Patterns on the Occurrence and Epidemic of Northern Leaf Blight on Maize |
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| YU Shu-yi,FU Jun-fan,ZHOU Ru-jun,KANG Xiao-jun,LIU Bo.Effects of Different Cultivation Patterns on the Occurrence and Epidemic of Northern Leaf Blight on Maize[J].Journal of Maize Sciences,2011,19(1):132-135. |
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| Authors: | YU Shu-yi FU Jun-fan ZHOU Ru-jun KANG Xiao-jun LIU Bo |
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| Institution: | YU Shu-yi,FU Jun-fan,ZHOU Ru-jun,KANG Xiao-jun,LIU Bo(College of Plant Protection,Shenyang Agricultural University,Shenyang 110161,China) |
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| Abstract: | Northern leaf blight was investigated with tested cultivars on different cultivation patterns in Siping area, 2009. Through comparing and analyzing, Logistic model could well reflect the temporal dynamic of maize northern leaf blight in field by natural infection. No-till with straw cover was beneficial to the disease occurrence; occurrence degree of the disease in wide-narrow row was lower than other cultivation patterns. The exponential phases were different with different cultivation patterns. The sequence was No-till with straw cover(NTS), flat planting(FP), conventional tillage(CT) and wide-narrow row(WNR). The exponential phase was also the best time to chemical control. The order of disease severity among tested cultivars on different cultivation patterns was NTS > FP > CT > WNR. |
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| Keywords: | Northern leaf blight Cultivation pattern Disease comparative epidemic |
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