نتایج جستجو برای: north peat (c2)

تعداد نتایج: 183007  

Journal: :علوم باغبانی ایران 0
معظم حسن پور اصیل دانشیار دانشگاه گیلان داریوش رمضان دانشجوی دکتری علوم باغبانی دانشکدة علوم کشاورزی دانشگاه گیلان و مربی دانشگاه زابل

ruffling is a practice through which the mycelia containing casing soil will be thoroughly mixed. to evaluate the effects of ruffling of different casing soils in button mushroom production, an experiment was conducted comprised of three levels of ruffling; no ruffling, deep ruffling vs. superficial scratch and eight different types of casing soils, namely: holland peat (c1), north peat (c2), s...

Journal: :علوم باغبانی ایران 0
داریوش رمضان عضو هیأت علمی گروه مهندسی فضای سبز و استادیار اصلاح و بیوتکنولوژی دانشکده کشاورزی دانشگاه زابل براتعلی سیاه سر عضو هیأت علمی گروه مهندسی فضای سبز و استادیار اصلاح و بیوتکنولوژی دانشکده کشاورزی دانشگاه زابل

casing material or soil (casing) is used in mushroom (agaricus bisporus) culture to cover a nutritional composted substrate colonised with mycelium, and has an essential function in stimulating and promoting the development of sporophores (fruit bodies). in order to use the agricultural by products (different wastes) to reduce peat consumption of casing soil in button mushroom production, an ex...

2011
Orjan Berglund

Approximately 15 percent of Sweden’s land area is covered by peat ( 30 cm deep). In drained peatlands, decomposition of the peat produces greenhouse gases such as CO2 and N2O. Electric conductivity, measured with the instrument EM38, can be used to assess spatial variation in soil properties. To easier decide the quantity of the CO2-emissions from a peatland the possible relation between electr...

1998
S. C. Zoltai W. J. de Groot

Boreal peatlands occupy about 1.14 x 106 km2 in North America. Fires can spread into peatlands, burning the biomass, and if moisture conditions permit, burning into the surface peat. Charred layers in peat sections reveal that historically bogs in the subhumid continental regions and permafrost peatlands of the subarctic regions have been the most susceptible to fires. Fire return periods were ...

2002
J. Holden T. P. Burt

Blanket peat covers the headwaters of many major European rivers. Runoff production in upland blanket peat catchments is flashy with large flood peaks and short lag times; there is minimal baseflow. Little is known about the exact processes of infiltration and runoff generation within these upland headwaters. This paper presents results from a set of rainfall simulation experiments performed on...

A Mehrafarin , H Naghdi Badi , M Moradi ,

Background: Lemon verbena (Lippia citriodora H.B.K.) is an aromatic and medicinal plant of family Verbenaceae, which cultivated in North region of Iran. Objective: Evaluation of phytochemical characters in Lippia citriodora H.B.K. plantlets affected by propagation methods (micro-propagation and stem cutting) cultivated in different soil type (peat moss and mixture soil). Methods: This study w...

2001
J. Holden T. P. Burt N. J. Cox

Little is known about the processes of infiltration and water movement in the upper layers of blanket peat. A tension infiltrometer was used to measure hydraulic conductivity in a blanket peat in the North Pennines, England. Measurements were taken from the surface down to 20 cm in depth for peat under four different vegetation covers. It was found that macropore flow is a significant pathway f...

2008
STEPHEN C. ZOLTAI BASAL PEAT

Zoltai, S.C. 1995. Regional variations in peatland ecosystems of west-central Canada through time. Gunneria 70: 35-42. Peatland ecosystems respond to major changes in their environment induced by prolonged changes in climate. In the western boreal region of Canada, permafrost occurs only in Sphagnum-dominated peatlands. In the north, the palsas and peat plateaus are associated with well-defined...

Journal: :فصلنامه علمی پژوهشی گیاهان دارویی 0
m moradi islamic azad university a mehrafarin research center, institute of medicinal plants, acecr h naghdi badi institute of medicinal plants, acecr, karaj, iran p.o.box: 31375-369, tel: +98-26-34764010-8, fax: +98-26-34764021

background: lemon verbena (lippia citriodora h.b.k.) is an aromatic and medicinal plant of family verbenaceae, which cultivated in north region of iran. objective: evaluation of phytochemical characters in lippia citriodora h.b.k. plantlets affected by propagation methods (micro-propagation and stem cutting) cultivated in different soil type (peat moss and mixture soil). methods: this study was...

Journal: :The Science of the total environment 2002
T M Mighall P W Abrahams J P Grattan D Hayes S Timberlake S Forsyth

This paper presents geochemical data from a blanket peat located close to a Bronze Age copper mine on the northern slopes of the Ystwyth valley, Ceredigion, mid-Wales, UK. The research objective was to explore the possibility that the peat contained a geochemical record of the pollution generateD by mining activity. Four peat monoliths were extracted from the blanket peat to reconstruct the pol...

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