A survey on the occurrence of corn weeds in Hebei province was conducted from 2004 to 2005 by inverted *** species composition and dominancy of weed community were *** between weed occurrence and environmental factors...
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A survey on the occurrence of corn weeds in Hebei province was conducted from 2004 to 2005 by inverted *** species composition and dominancy of weed community were *** between weed occurrence and environmental factors were analyzed by partial correlation analysis(PCA) and path analysis(PA).PCA Results showed that soil
The alien plant have a strong adaptation and tolerance in acclimation to environment,which was one of the important factors that they can successfully *** characteristics of photosynthetic physiological of Lantana cam...
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The alien plant have a strong adaptation and tolerance in acclimation to environment,which was one of the important factors that they can successfully *** characteristics of photosynthetic physiological of Lantana camara and its companion plants Bidens,Urena lobata,and Achyranthes aspera under different light intensity and different CO2 concentration were ***
To evaluate the efficacy of 6 herbicides against Galium aparina L.,two experiments were conducted in winter and spring based on different temperature conditions in wheat field, *** result showed that bensulfuron and d...
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To evaluate the efficacy of 6 herbicides against Galium aparina L.,two experiments were conducted in winter and spring based on different temperature conditions in wheat field, *** result showed that bensulfuron and dicamba had higher control effect against Galium aparina *** others,both of them had no remarkable difference on different
Ecological adaptability of 6 cover crops and their effectiveniss of controlling weeds was evaluated in Chestnut(Castanea Mollissia) orchard of Beijing in order to replace herbicide, avoid bare soil,reduce soil erosion...
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Ecological adaptability of 6 cover crops and their effectiveniss of controlling weeds was evaluated in Chestnut(Castanea Mollissia) orchard of Beijing in order to replace herbicide, avoid bare soil,reduce soil erosion by water and increase plant *** repens, Dactylis glomerata,Festuca arundinacea,Lolium perenne,Poa pratensis and Bromus inermis
We studied the effects of a-naphthylacetic acid,a plant growth regulator,on the growth of photosynthetic bacteria(PSB).Our experimental results showed that a-naphthylacetic acid OD{(660) promoted 9%,16.1%and 23.6%of t...
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We studied the effects of a-naphthylacetic acid,a plant growth regulator,on the growth of photosynthetic bacteria(PSB).Our experimental results showed that a-naphthylacetic acid OD{(660) promoted 9%,16.1%and 23.6%of the growth of PSB with the optimal a-naphthylacetic acid concentration at 0.1,0.5,1.0 mg / L afeter inoculation 6 ***
The dry weight of the various weed species were respectively determined in transplanting allelopathic rice 777 and non- allelopathic yangdao 6 widely cultivated in Yangzi River at full heading stage under different N ...
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The dry weight of the various weed species were respectively determined in transplanting allelopathic rice 777 and non- allelopathic yangdao 6 widely cultivated in Yangzi River at full heading stage under different N fertilizer with field ***-inhibiting effects of test rice varieties and weed Parameters of weed community structure at full heading stage in paddy were
The over application of herbicides has been causing a lot of problems such as soil and water pollution,crop damages,resistant weeds and low profit in agriculture ***,it is becoming increasingly important to protect th...
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The over application of herbicides has been causing a lot of problems such as soil and water pollution,crop damages,resistant weeds and low profit in agriculture ***,it is becoming increasingly important to protect the environment and increase crop yield and benefits by reducing the application of herbicides.
The paper used Carica papaya as donors and Cucumbe,Radish,Sesamum indicum as *** paper mensurated the allelopathy of Carica papaya through the seed germination and the mensuration of rhizome *** result showed that the...
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The paper used Carica papaya as donors and Cucumbe,Radish,Sesamum indicum as *** paper mensurated the allelopathy of Carica papaya through the seed germination and the mensuration of rhizome *** result showed that the aqueous extract from papaya leave inhibited the germination and growth of *** addition,effect of the inhibition enhanced
The herbicidal activity of fruit juice of Solanum nigrum *** determinde by the seeds germination of Solanum nigrum *** Amaranthus retroflexus L..The test showed that the herbicidal activitve materials content are very...
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The herbicidal activity of fruit juice of Solanum nigrum *** determinde by the seeds germination of Solanum nigrum *** Amaranthus retroflexus L..The test showed that the herbicidal activitve materials content are very high in fruit juice of Solanum nigrum L.,the materials kept herbicidal activity after heated 0.5h under 150℃,and the effect on Solanum,
As another alien invasive weed in China,Flaveriinae bidentis was found in Hengshui in Hebei Province and Tianjin Nankai University in *** habitats of *** were diversified, including the place nearby *** invading succe...
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As another alien invasive weed in China,Flaveriinae bidentis was found in Hengshui in Hebei Province and Tianjin Nankai University in *** habitats of *** were diversified, including the place nearby *** invading successfully,it would cause a great impact on the *** was one of the mechanisms,the answer to the invasiveness of
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