轮作万吉草防治根损线虫影响烤烟的生长、产量、品质和生产成本

中国烟草科学 Pub Date : 2000-01-01 DOI:10.3381/0082-4623-44.1.11

L. Reynolds, B. Ball-Coelho, J. Potter

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引用次数: 0

摘要

根损线虫(Pratylenchus penetrans)对烟草产量和品质有显著影响。这种线虫也是谷物黑麦(Secale cereale)的寄生虫，这是烟草地区常见的轮作作物。安大略省95%以上的种植者在春季移栽烟草前进行行熏蒸，以控制线虫数量。种植万寿菊(万寿菊)也能减少线虫的数量，而且当与烟草轮作时代替黑麦，可以替代化学熏蒸。1996年至1998年进行了田间试验，比较了金盏花轮作与传统秋黑麦轮作在有和没有化学熏蒸的情况下对烤烟产量、质量和生产成本的影响。与黑麦+熏蒸对照相比，万年菊轮作和未熏蒸黑麦轮作均导致下一烟草作物年早期氮素利用率略低。7月株高和开花天数，两者…

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ROTATION WITH TAGETES SP. FOR CONTROL OF ROOT-LESION NEMATODES AFFECTS FLUE-CURED TOBACCO GROWTH, YIELD, QUALITY, AND COST OF PRODUCTION

Abstract The root-lesion nematode (Pratylenchus penetrans) can cause significant reduction in tobacco yield and quality. This nematode also is a parasite of cereal rye (Secale cereale), which is a common rotation crop in tobacco areas. Row fumigation prior to transplanting tobacco in the spring is practiced by >95% of Ontario growers to control nematode populations. Planting of Tagetes sp. (marigold) also reduces nematode populations, and when used instead of rye as a rotation crop with tobacco, can provide an alternative to chemical fumigation. Field trials were conducted from 1996 to 1998 to compare the impacts of marigold rotation vs. a traditional fall rye rotation crop, with and without chemical fumigation, on flue-cured tobacco yield, quality, and cost of production. Both the marigold rotation and the non-fumigated rye rotation resulted in slightly less early season N available in the following tobacco crop year compared to the rye + fumigation check. Plant height in July and days to flowering, both...

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来源期刊

中国烟草科学烟草

自引率

0.00%

发文量

3722

期刊介绍： Chinese Tobacco Science is an academic scientific journal (bimonthly) under the supervision of the Ministry of Agriculture and Rural Affairs of the People's Republic of China, and sponsored by the Tobacco Research Institute of the Chinese Academy of Agricultural Sciences and the Qingzhou Tobacco Research Institute of China National Tobacco Corporation. It was founded in 1979 and is publicly distributed nationwide. The journal mainly publishes academic papers on scientific research results, new production technologies, and modern management in my country's tobacco science research and tobacco production technology. In addition, it also publishes forward-looking review articles in the field of tobacco research. There are columns such as tobacco genetics and breeding, cultivation technology, modulation and processing, physiology and biochemistry, plant protection, review or monograph, quality chemistry, etc.