نتایج جستجو برای: peat and swamps

تعداد نتایج: 16828534  

2005
M. TRCKOVA L. MATLOVA H. HUDCOVA M. FALDYNA Z. ZRALY L. DVORSKA V. BERAN I. PAVLIK

Peat is an easily available natural material and a source of biologically active substances widely used, not only in agriculture but in human and animal medicine as well. In recent years, interest in the use of peat as a feed supplement has increased, particularly due to its capability to prevent enteric diseases and to stimulate growth in piglets and pigs. The purpose of this review was to com...

2005
H. Biester D. Selimović

Halogens are strongly enriched in peat and peatlands and such they are one of their largest active terrestrial reservoir. The enrichment of halogens in peat is mainly attributed to the formation of organohalogens and climatically controlled humification processes. However, little is known about release of halogens from the peat substrate and the distribution of halogens in the peat pore water. ...

الفتی, جمالعلی, شبانی, طیبه, پیوست, غلامعلی,

Abstract In order to determine the effect of different substrates on the yield and quality of three pepper cultivars in a pot and tube culture, an investigation was conducted in a greenhouse in Sarkhoon, Bandar-Abbas in 2010. Different substrates including palm waste (100%), peat (100%), palm waste + peat (50:50 V/V), palm waste + peat (25:75 V/V) and waste palm + peat (75:25 V/V) and three cu...

2016
Catherine M. Yule Yau Yan Lim Tse Yuen Lim

Indo-Malaysian tropical peat swamp forests (PSF) sequester enormous stores of carbon in the form of phenolic compounds, particularly lignin as well as tannins. These phenolic compounds are crucial for ecosystem functioning in PSF through their inter-related roles in peat formation and plant defenses. Disturbance of PSF causes destruction of the peat substrate, but the specific impact of disturb...

Journal: :Perspectives in Biology and Medicine 2000

2016
Mikk Espenberg Marika Truu Jaak Truu Martin Maddison Hiie Nõlvak Järvi Järveoja Ülo Mander

This study examined physiochemical conditions and prokaryotic community structure (the bacterial and archaeal 16S rRNA genes and mcrA gene abundances and proportions), and evaluated the effect of reed canary grass cultivation and mineral fertilisation on these factors, in the 60 cm thick residual peat layer of experimental plots located on an abandoned peat extraction area. The archaeal proport...

2017
Z. Adnan M. M. Habib

The laboratory tests for measuring the effects of small strain to the shear strength and maximum stiffness development of post-cyclic degradation of hemic peat are reviewed in this paper. A series of laboratory testing has been conducted to fulfil the objective of this research to study the post-cyclic behaviour of peat soil and focuses on the small strain characteristics. For this purpose, a n...

Journal: :British journal of industrial medicine 1991
T Sandström B Kolmodin-Hedman M C Ledin L Bjermer S Hörnqvist-Bylund N Stjernberg

Mechanised production of peat for fuel consumption is associated with high concentrations of organic dust, which is inhaled by the peat workers. In the present study 17 workers at two peat bogs in northern Sweden were examined. Personal sampling of total dust and the respirable fraction was performed during several workshifts. Dynamic spirometry was carried out before and at the end of shifts. ...

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...

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...

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