Full TGIF Record # 115063
Item 1 of 1
DOI:10.1081
Web URL(s):http://www.informaworld.com/smpp/ftinterface~content=a713631471~fulltext=713240928
    Last checked: 05/08/2007
    Access conditions: Item is within a limited-access website
Publication Type:
i
Report
Author(s):Antonious, George F.
Author Affiliation:Department of Plant and Soil Science, Kentucky State University, Frankfort, Kentucky
Title:Impact of soil management and two botanical insecticides on urease and invertase activity
Source:Journal of Environmental Science and Health: Part B: Pesticides, Food Contaminants, and Agricultural Wastes. July 2003, p. 479-488.
# of Pages:10
Publishing Information:New York: Marcel Dekker
Keywords:TIC Keywords: Pyrethrins; Composts; Filter strips; Soil management; Yard waste; Organic fertilizers; Botanical insecticides; Invertase
Abstract/Contents:"Yard waste compost provides an organic amendment useful for improving soil structure and nutrient status. The activities of the enzymes hydrolyzing urea (urease) and sucrose (invertase) in the rhizosphere of potato plants were determined under field conditions. Soil urease and invertase activities were monitored in compost amended soil, grass buffer strips, and in adjacent bare soils during 35 d following soil treatment. Soil urease activity was increased by application of yard waste compost compared to untreated soil which provide evidence of increased soil microbial population following application of compost. Some transitional effects on urease activities were observed following Pyrethrins and Neemix-4E application, these effects were neither drastic nor prolonged enough to be considered deleterious to the soil microorganisms and their activities important to soil fertility. No relationship was found between invertase activity and the three management practices or soil organic matter content. It is suggested that application of botanical insecticides like pyrethrins and Neemix-4E may be useful in delaying urea fertilizer mineralization to maintain N in a form less leachable, so that the duration of N availability to plants is prolonged. The present study may also provide information on urease activity as a sensitive bioindicator of soil quailty that reflects the effects of land management on soil quality and may assist land managers in monitoring long-term productivity and sustainability of agricultural lands."
Language:English
References:47
ASA/CSSA/SSSA Citation (Crop Science-Like - may be incomplete):
Antonious, G. F. 2003. Impact of soil management and two botanical insecticides on urease and invertase activity. J. Environ. Sci. Health. p. 479-488.
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DOI: 10.1081
Web URL(s):
http://www.informaworld.com/smpp/ftinterface~content=a713631471~fulltext=713240928
    Last checked: 05/08/2007
    Access conditions: Item is within a limited-access website
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