Effect of allelopathic rice varieties combined with cultural management options on paddy field weeds

CORC > 沈阳应用生态研究所 > 中国科学院沈阳应用生态研究所 > 沈阳应用生态研究所

	Effect of allelopathic rice varieties combined with cultural management options on paddy field weeds
	Kong, CH; Hu, F; Wang, P; Wu, JL; Kong, CH, Chinese Acad Sci, Inst Appl Ecol, Shenyang 110016, Peoples R China
刊名	PEST MANAGEMENT SCIENCE
	2008
卷号	64 期号:3 页码:276-282
关键词	Oryza Sativa L. Allelopathy Cultural Management Low-dose Herbicide Weed Suppression Paddy Field
ISSN号	1526-498X
英文摘要	BACKGROUND: A number of techniques, including cultural management, allelopathy and bioherbicide, have been considered as alternatives for synthetic herbicides, but successful weed control will require the careful integration of these multiple techniques. This study was conducted to assess the use of allelopathic rice varieties in combination with cultural management options on paddy weeds, in order to develop an allelopathy-based technique to reduce herbicide use in paddies. RESULTS: The weed-suppressive effects of the rice varieties tested varied highly with allelopathic trait, planting pattern and cultural management including planting density, flooding depth and duration and supply of nitrogen. Allelopathic rice varieties PI312777 and Huagan-1 demonstrated much stronger weed suppression than the non-allelopathic variety Huajianxian under the same planting pattern and cultural management. Their weed-suppressive effect was increased with cultural management options. In particular, if integrated cultural management options of allelopathic rice varieties included a low-dose (bensulfuron-methyl, 25 g AI ha(-1) a third of the recommended dose) herbicide application, the emergence and growth of most weeds found in paddy fields was completely controlled. No grain yield reduction for allelopathic varieties occurred under integrated cultural management options, whereas with the non-allelopathic variety a reduction of up to 45-60% was measurable even with the low-dose herbicide application. CONCLUSION: The allelopathic potential of rice varieties will likely have a great impact on paddy weed control if integrated with cultural management options and application of low doses of herbicides. Therefore, it is feasible to reduce herbicide input in paddies if allelopathic rice is grown under integrated cultural management practices. (c) 2008 Society of Chemical Industry.
学科主题	Agronomy ; Entomology
语种	英语
WOS记录号	WOS:000253959900009
公开日期	2011-09-23
内容类型	期刊论文
源URL	[http://210.72.129.5/handle/321005/54499]
专题	沈阳应用生态研究所_沈阳应用生态研究所
通讯作者	Kong, CH, Chinese Acad Sci, Inst Appl Ecol, Shenyang 110016, Peoples R China
推荐引用方式 GB/T 7714	Kong, CH,Hu, F,Wang, P,et al. Effect of allelopathic rice varieties combined with cultural management options on paddy field weeds[J]. PEST MANAGEMENT SCIENCE,2008,64(3):276-282.
APA	Kong, CH,Hu, F,Wang, P,Wu, JL,&Kong, CH, Chinese Acad Sci, Inst Appl Ecol, Shenyang 110016, Peoples R China.(2008).Effect of allelopathic rice varieties combined with cultural management options on paddy field weeds.PEST MANAGEMENT SCIENCE,64(3),276-282.
MLA	Kong, CH,et al."Effect of allelopathic rice varieties combined with cultural management options on paddy field weeds".PEST MANAGEMENT SCIENCE 64.3(2008):276-282.