Issue · 1989
Vol. 39, Iss. 3
9 articles · All issues →
ArticlesForestry Sector Intervention: The impacts of public regulation on Social Welfare (Book Review)
Roy G. Boyd, William F. Hyder
Forestry Sector Intervention: The impacts of public regulation on Social Welfare (Book Review)
25 May 2024- Articles
A new plant record of Buxus from Chitral
S.A. Khan, A. R. Beg
During examination of material in the Herbarium of Pakistan Forest Institute, (PF1-B), plants collected from three localities in Chitral District were identified as Buxus microphylla Sieb. and Zucc. The plant was referred to Mr. I. C. Hedge of Edinburgh for co…
25 May 2024 - Articles
Determination of optimum period of growth, suitable season of planting and effect of fertilizer on the yield of rhizomes of Dioscorea deltoidea Wall at Kuza Gali
Anwar Ahmad Khan, Shakeel Haider Zaidi
Experiments were carried out to determine the optimum period of growth, effect of planting season and application of N&P alone or in combination on the yield of Dioscorea diltoidea rhizomes at Kuza Gali, its natural habitat. Results indicated that yield of rhi…
25 May 2024 - Articles
Noise level of different machines in the sawmill of N.W.F.P. Forest Development Coporation, Mansehra
M. Ayaz
A study was conducted on the noise level of different machines and exposure of workers to it in the Sawmill of N.W.F.P., Forest Development Corporation, Mansehra. The results of this study revealed that the noise level of all the machines in the nearest work p…
25 May 2024 - Articles
Machine Cost Calculation - An Example in a Road Building Project in Siran Forest Division N.W.F.P.
Gerhard Stoehr
For the calculation of cost of machine operations different costs like capital costs, personal costs and overhead costs are taken into consideration. Capital costs are the actual costs of the machine and are further divided into fixed, semi-variable and variab…
25 May 2024 - Articles
A note on the new Hosts of Botryodiplodia theobromae in Pakistan
Syed Ehteshmul Haque, Abdul Ghaffar
During a survey of cultivated fields of Malir, Karachi, Annona squamosa L., Pithecellobium dulce (Roxb.) Benth and Aralia sp. were found to show symptoms of die back disease. Microscopic examination of the dead branches revealed the presence of dark black pycn…
25 May 2024 - Articles
Nitrification and Denitrification Potential of soils under Dalbergia sissoo Roxb, ex, DC
R. F. Fisher, Zahid Javid
Shisham (Dalbergia sissoo Roxb. ex. DC) is grown under flood irrigation on the Indus Plain of Pakistan. This dinitrogen fixing tree enriches the soil in nitrogen and improves the site upon which it is grown. The low C:N ratio, high summer temperatures and irri…
25 May 2024 - Articles
Contribution of Basidiomycete Fungi in the Natural Process of Bio-degradation of wood in Forest stands
S. I. Zafar, Ulfat Naheed, N. Abdullah, M. Yasin
Intro: The role of white rot basidiomycetes in the biodegradation of lignocellulosic materials is now well established (Janshekar and Fiechter, 1983; Kirk, 1984). Accordingly, numerous studies have been carried out on the comparative ligninolytic activities of…
25 May 2024 - Articles
Home and Foreign News Inauguration of PFI Research and Training Field Station, Shinkiari, Mansehra XIX IUFRO World Congress, Montreal, Canada, August 5-11, 1990 Paulownia Research in Pakistan Tree Water Requirements
Editor
Home and Foreign News 1. Inauguration of PFI Research and Training Field Station, Shinkiari, Mansehra 2. XIX IUFRO World Congress, Montreal, Canada, August 5-11, 1990 3. Paulownia Research in Pakistan 4. Tree Water Requirements
25 May 2024