Sixty five strains of fungi were isolated and purified from naturally infected bamyardgrass in different ecological regions of *** results showed that the strain B6,belonging to Curvularia,was most virulent among thes...
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Sixty five strains of fungi were isolated and purified from naturally infected bamyardgrass in different ecological regions of *** results showed that the strain B6,belonging to Curvularia,was most virulent among these strains and had the potential of being developed as a mycoherbicide for bamyardgrass *** segment experiments,all leaves turned yellow
Oxalis corybosa DC is a noxious invasive alien species,and it has become widespread in many areas in China,and caused seriously economic losses and ecological *** exotic species was mainly reproducted in an asexual re...
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Oxalis corybosa DC is a noxious invasive alien species,and it has become widespread in many areas in China,and caused seriously economic losses and ecological *** exotic species was mainly reproducted in an asexual reproductive way by its underground bulbs,this plant is a typical vicious weed on the upland with strong adaptability,quick growth,reproductive
Weed community in spring and summer was surveyed at Zhongshan University,South China Agricultural University,Yuntai Park and Liu-huahu Park by employing the investigation p procedure with 5 sampling locations in Guang...
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Weed community in spring and summer was surveyed at Zhongshan University,South China Agricultural University,Yuntai Park and Liu-huahu Park by employing the investigation p procedure with 5 sampling locations in Guangzhou in *** result showed that a total 62species,which belonged to 24 families and 52 genera,were found and the number of weed
Field experiments were conducted to examine the effects of herbicide on the interference of allelopathic rice in weeds under different water depth on soil *** results showed that allelopathic rice could inhibit the ge...
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Field experiments were conducted to examine the effects of herbicide on the interference of allelopathic rice in weeds under different water depth on soil *** results showed that allelopathic rice could inhibit the germination and growth of bamyardgrass[Echinochloa crusgalli(L.) Beauv]effectively,and bensulfuron methyl[30g(a.i)/ha]applied 6 days later after
Through germination test and hydroponic culture of seedling,the allelopathy of garlic straw aqueous extracts on tomato was *** results indicated that at the concentration of 0.005 g·ml garlic extracts showed prom...
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Through germination test and hydroponic culture of seedling,the allelopathy of garlic straw aqueous extracts on tomato was *** results indicated that at the concentration of 0.005 g·ml garlic extracts showed promotion effects on seed germination rate,germination index and seedling growth of *** from the concentration 0.02 g·ml garlic extracts showed
It was studied on bioassay methods of herbicidal activity of 99—01 which had a potential for *** weeks after inoculation with the pathogens,all barnyardgrass developed 100%disease incidence,and disease severity range...
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It was studied on bioassay methods of herbicidal activity of 99—01 which had a potential for *** weeks after inoculation with the pathogens,all barnyardgrass developed 100%disease incidence,and disease severity ranged from 80%to 100%.When the barnyardgrass was treated with 4.2×10～7 spores/m,99-01 showed stronger herbicidal activity
As the rapid expansion of directly sowing rice in Jiang-Huai region,malignant weeds such as bamyardgrass[Echinochloa crusgalli(L.) Beauv],Chinese sprangletop[Leptochloa chinensis (L.) Nees]and common crabgrass[Digitar...
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As the rapid expansion of directly sowing rice in Jiang-Huai region,malignant weeds such as bamyardgrass[Echinochloa crusgalli(L.) Beauv],Chinese sprangletop[Leptochloa chinensis (L.) Nees]and common crabgrass[Digitaria sanguinalis(Linn.) Scop.]occur widely in directly sowing rice field and do serious harm to ***,chemical herbicide application is an
Praxelis(Praxelis clematidea) plants showing witches'-broom symptoms typical of phytoplasmas were observed from Danzhou,Hainan in *** were detected from symptomatic samples by PCR amplification of their *** expect...
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Praxelis(Praxelis clematidea) plants showing witches'-broom symptoms typical of phytoplasmas were observed from Danzhou,Hainan in *** were detected from symptomatic samples by PCR amplification of their *** expected 1189bp DNA fragment was amplified from diseased plants but not from known healthy or symptomless plants.
Currently,approximately 70 million ha of crop fields are receiving herbicide treatments annually throughout the country,herbicide production and market shares have increased rapidly with the development of chemical we...
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Currently,approximately 70 million ha of crop fields are receiving herbicide treatments annually throughout the country,herbicide production and market shares have increased rapidly with the development of chemical weed control in *** asstimated,about 8.5 million farmers will move into towns annually in the next 10 years,and 0.3 billion people will be citizenised in the
The author studies the species of major weed,occurrence characteristics and changes in control techniques from hand weeding to chemical control by herbicides oxyfluorfen, bensulfuron-methyl+metsulfuron-methyl,bensulfu...
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The author studies the species of major weed,occurrence characteristics and changes in control techniques from hand weeding to chemical control by herbicides oxyfluorfen, bensulfuron-methyl+metsulfuron-methyl,bensulfuron-methyl,butachlor and ethachlor in transplanted paddy fields in Xishuangbanna,Yunnan *** results show that standard cultivation of non-polluted rice is very important to help Dai nationality to develop modern rice production technology and necessary to promote agricultural quality and benefit in this area.
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