[Objective] Pathogen identification and disease regularity of perennial ryegrass rust in Jurong area of Jiangsu Province was conducted.[Method] Perennial ryegrass rust occurred in Science and Technology Demonstration ...[Objective] Pathogen identification and disease regularity of perennial ryegrass rust in Jurong area of Jiangsu Province was conducted.[Method] Perennial ryegrass rust occurred in Science and Technology Demonstration and lawn greening band of campus in Jiangsu Polytechnic College of Agriculture and Forestry in Jurong region of Jiangsu Province were randomly investigated and their incidence laws were observed.[Result] Perennial ryegrass rust had the most serious occurrence in June each year in Jurong area of Jiangsu Province,the tender perennial ryegrass sowed this year were more susceptible to the disease than the perennial ryegrass with two years generation;Puccinia coronata var.coronata Corda was confirmed to be the pathogen of perennial ryegrass rust;when the temperature was about 25 ℃,it was the best condition for the occurrence of rust disease,when the temperature was over 35 ℃,the disease would reduce or stop.[Conclusion] Perennial ryegrass rust was first reported in Jiangsu Province.展开更多
Establishment of ornamental and aesthetic plants in hot, arid conditions of India is difficult due to the prevailing climatic, edaphic and biotic factors. Effect of turfgrass on the growth of ornamental plants in hot ...Establishment of ornamental and aesthetic plants in hot, arid conditions of India is difficult due to the prevailing climatic, edaphic and biotic factors. Effect of turfgrass on the growth of ornamental plants in hot arid conditions has not been studied so far anywhere in the world. A study was conducted on the campus of Arid Forest Research Institute, Jodhpur, India to assess the performance of a few ornamental plant spe- cies in combination with turfgrass and without turfgrass with respect to different soil tilling intervals. Growth of plants was better with turfgrass than without turfgrass. We suggest adopting a soil tilling interval of 30 days to achieve optimum growth of ornamental plant species in terms of height and crown diameter. Our results can help reduce labor costs and achieving better landscapes in fewer days in hot urban conditions of Indian sub continent.展开更多
The aim of this analysis is to compare and contrast the differences and similarities of the construction and maintenance of soccer fields, from both technical and economic points of view. Authors studied two samples：...The aim of this analysis is to compare and contrast the differences and similarities of the construction and maintenance of soccer fields, from both technical and economic points of view. Authors studied two samples： the first with totally modified top soil following the USGA （United States Golf Association） Specifications, all new top soil, as in USGA, called the Texas method; the second sample was natural soil mixed with ammendants and sand, in order to reduce compaction. This study compares the initial investments, performance during training and finally the cost of maintenance. The drainage system was the same for both samples.展开更多
基金Supported by Natural Science Foundation of Jiangsu Province(BK2008243)State Forestry Bureau 948 Project(2006-4-79)~~
文摘[Objective] Pathogen identification and disease regularity of perennial ryegrass rust in Jurong area of Jiangsu Province was conducted.[Method] Perennial ryegrass rust occurred in Science and Technology Demonstration and lawn greening band of campus in Jiangsu Polytechnic College of Agriculture and Forestry in Jurong region of Jiangsu Province were randomly investigated and their incidence laws were observed.[Result] Perennial ryegrass rust had the most serious occurrence in June each year in Jurong area of Jiangsu Province,the tender perennial ryegrass sowed this year were more susceptible to the disease than the perennial ryegrass with two years generation;Puccinia coronata var.coronata Corda was confirmed to be the pathogen of perennial ryegrass rust;when the temperature was about 25 ℃,it was the best condition for the occurrence of rust disease,when the temperature was over 35 ℃,the disease would reduce or stop.[Conclusion] Perennial ryegrass rust was first reported in Jiangsu Province.
文摘Establishment of ornamental and aesthetic plants in hot, arid conditions of India is difficult due to the prevailing climatic, edaphic and biotic factors. Effect of turfgrass on the growth of ornamental plants in hot arid conditions has not been studied so far anywhere in the world. A study was conducted on the campus of Arid Forest Research Institute, Jodhpur, India to assess the performance of a few ornamental plant spe- cies in combination with turfgrass and without turfgrass with respect to different soil tilling intervals. Growth of plants was better with turfgrass than without turfgrass. We suggest adopting a soil tilling interval of 30 days to achieve optimum growth of ornamental plant species in terms of height and crown diameter. Our results can help reduce labor costs and achieving better landscapes in fewer days in hot urban conditions of Indian sub continent.
文摘The aim of this analysis is to compare and contrast the differences and similarities of the construction and maintenance of soccer fields, from both technical and economic points of view. Authors studied two samples： the first with totally modified top soil following the USGA （United States Golf Association） Specifications, all new top soil, as in USGA, called the Texas method; the second sample was natural soil mixed with ammendants and sand, in order to reduce compaction. This study compares the initial investments, performance during training and finally the cost of maintenance. The drainage system was the same for both samples.
