Investigation has conducted on relationship between plant diversity and ground beetles in peach orchards with two different weed managements in 2004-2005 in Beijing *** management ways include maintaining vegetation w...
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Investigation has conducted on relationship between plant diversity and ground beetles in peach orchards with two different weed managements in 2004-2005 in Beijing *** management ways include maintaining vegetation with 3 mowing in the season of weed growth rapid,or weeding by hand as a control in peach *** species and vegetation cover
In order to control Leymus secalinus efficiently in rhubarb fields and decrease consumption of soil water and nutrient,we have invested and analyzed the biological characteristics,harm, prevention and cure of Leymus *...
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In order to control Leymus secalinus efficiently in rhubarb fields and decrease consumption of soil water and nutrient,we have invested and analyzed the biological characteristics,harm, prevention and cure of Leymus *** a result,it was indicated that the Leymus secalinus was 45~120 cm in height,exhibited single or cluster,and expanded their roots transworsely in
Allelochemicals can be produced from the roots of allelopathic *** acids were used to being identified as the primary *** this paper Assay-guided fractionation of the EtOH crude extract of allelopathic Rice PI312777wa...
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Allelochemicals can be produced from the roots of allelopathic *** acids were used to being identified as the primary *** this paper Assay-guided fractionation of the EtOH crude extract of allelopathic Rice PI312777was isolated and 35 secondary metabolites were identified by means of 1D,2DNMR,MS,IR,*** preliminary screening data indicated
There are invasive alien weeds of 35 families,103 genera and 140 species in Hainan Island, South China for the moment after ***,the families with more species belong to Leguminosae(31 species),Compositae(19 species),G...
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There are invasive alien weeds of 35 families,103 genera and 140 species in Hainan Island, South China for the moment after ***,the families with more species belong to Leguminosae(31 species),Compositae(19 species),Gramineae(17 species), Amaranthaceae(11 species),Euphorbiaceae(10 species) and Solanaceae(7 species);61.2%of them are native to America and the most of them are native to Tropical America.
Using antialgal allelopathy of the large seaweeds to inhibit red tide has been an area of much research *** order to identify which species of large seaweed has a strong allelopathic inhibitory effect on Gymnodinium b...
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Using antialgal allelopathy of the large seaweeds to inhibit red tide has been an area of much research *** order to identify which species of large seaweed has a strong allelopathic inhibitory effect on Gymnodinium breve,7 species of large seaweeds were *** of the large seaweeds were put into the cultures of G breve which were precultivated to the
The phenomenon of autotoxicity of Panax quinquefolium(American ginseng) has been reported by many investigators,but the autotoxic compounds was not *** this paper,9 phenolics and 5 aliphatic acids that could inhibit t...
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The phenomenon of autotoxicity of Panax quinquefolium(American ginseng) has been reported by many investigators,but the autotoxic compounds was not *** this paper,9 phenolics and 5 aliphatic acids that could inhibit the radicle growth of American ginseng were reported for the first time,which were the potential autotoxic compounds to American *** the active
Field bindweed(Convolvulus arvensis L.) and Japanese false bindweed(Calystegia hederacea wall.) have become the main noxious weeds of wheat,maize,and soybean field in North of China,also enlarged to all glebe *** a ge...
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Field bindweed(Convolvulus arvensis L.) and Japanese false bindweed(Calystegia hederacea wall.) have become the main noxious weeds of wheat,maize,and soybean field in North of China,also enlarged to all glebe *** a general way,farms seed corn or soybean after wheat harvested for saving *** they spay broad-spectrum herbicide such as
Weed damage is the major factor that affecting the growth and yield of corn in Liaoning *** is immediate significance to make clear the present situation of weed damage and community composition for preventing weeds i...
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Weed damage is the major factor that affecting the growth and yield of corn in Liaoning *** is immediate significance to make clear the present situation of weed damage and community composition for preventing weeds in corn *** the first particularly and concretely study during the last 20 years of the different regions in Liaoning Province was carried *** was according to the method of fixed-point arithmetic and five rating damage
Two flavone O-glycosides were isolated from allelopathic rice seedlings and have been identified as 5,4'-dihydroxy-3',5'-dimethoxy-7-O-β-glucopyranosylflavone and 7,4'-dihydroxy- 3',5'-dimetho...
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Two flavone O-glycosides were isolated from allelopathic rice seedlings and have been identified as 5,4'-dihydroxy-3',5'-dimethoxy-7-O-β-glucopyranosylflavone and 7,4'-dihydroxy- 3',5'-dimethoxy-5-O-β-*** levels of these glycosides could be found in allelopathic rice *** could not be detected in the soils growing allelopathic
Allantoin(5-ureidohydantoin) plays an essential role in the assimilation,metabolism,transport, and storage of nitrogen in numerous higher plants,but its ecological implications are largely *** this study,allantoin was...
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Allantoin(5-ureidohydantoin) plays an essential role in the assimilation,metabolism,transport, and storage of nitrogen in numerous higher plants,but its ecological implications are largely *** this study,allantoin was found in tissues of 11 rice(Oryza saliva) varieties tested and its structure was characterized by X-ray diffraction analysis to confirm the fact that allantoin
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