نتایج جستجو برای: plant charcoal

تعداد نتایج: 401387  

Journal: :iranian journal of applied animal science 2012
j.r. kana a. teguia a. fomekong

a total of 280 unsexed broiler chicks, 21 days-old and weighing 580 g on average were randomly distributed into 28 experimental units of 10 birds each. seven experimental diets containing respectively 0% (t0 control), 20% raw cowpeas (t1), 20% raw cowpeas + 0.2% of canarium charcoal (t2), 20% raw cowpeas + 0.2% maize cob charcoal (t3), 20% cooked cowpeas (t4), 20% cooked cowpeas + 0.2% canarium...

Journal: :Science 2008
David A Wardle Marie-Charlotte Nilsson Olle Zackrisson

Fire is a global driver of carbon storage and converts a substantial proportion of plant biomass to black carbon (for example, charcoal), which remains in the soil for thousands of years. Black carbon is therefore often proposed as an important long-term sink of soil carbon. We ran a 10-year experiment in each of three boreal forest stands to show that fire-derived charcoal promotes loss of for...

اعتصام, فروغ, خاکسار, غزاله, سید طباطبایی, بدرالدین ابراهیم , طالبی, مجید,

Periwinkle (Catharanthus roseus L., Apocynaceae) contains more than 130 different terpenoid indole alkaloids (TIAs), of which two dimeric alkaloids, Vinblastine and Vincristine, have antineoplastic activity and are useful in treatment of various cancers. Specific production of some alkaloids in differentiated tissues such as leaf and stem led to use direct regeneration of explants in order to i...

Journal: :Journal of environmental biology 2007
Vinod Kumar Anuj Kumar R N Kharwar

The effectiveness of plant growth promoting rhizobacteria especially Pseudomonas fluorescens isolates were tested against charcoal rot of chickpea both in green house as well as in field conditions. Most of the isolates reduced charcoal rot disease and promoted plant growth in green house. A marked increase in shoot and root length was observed in P. fluorescens treated plants. Among all the P....

2005
Harry Kenward Peter Wilson

Plant (and in two cases also invertebrate) remains were investigated from 24 contexts associated with two of the Roman >forts= at Cawthorn Camps, on the southern edge of the North York Moors, N. Yorkshire. Ancient plant remains were limited to small to moderate concentrations of charcoal and a very few other structures; all of the uncharred plant material and the few invertebrate remains encoun...

2004
Christoph Steiner Wenceslau G. Teixeira Johannes Lehmann Wolfgang Zech

Agriculture in the humid tropics is mostly limited by low soil fertility and invasion of weeds. The nutrient retention capacity of most soils is low and applied mineral fertilizers are rapidly leached into subsoil. Small farmers can not afford continuous mineral fertilizer input to compensate for the losses. Hence the dominating agricultural praxis is shifting cultivation accompanied with slash...

2004
Chairil A. Siregar Nobuo Ishibashi Tsuyoshi Kato Kazuya Ando

Charcoal is one of the important energy sources in the developing countries. Additionally, it is effective not only in carbon fixation and inactivation in the atmosphere but also in environmental conservation when used as an agent such a soil conditioner or growth accelerator of plants. However the utilization of charcoal in forestry sector, especially industrial plantation, has not been introd...

Charcoal rot caused by Macrophomina phaseolina is one of the most important soil borne diseases with a broad host range including bean, which annually brings a significant damage to this plant. Biological control of charcoal rot is very important because its chemical control harms the environment, microflora and soil fertility. Chemical control of charcoal rot is also difficult and sometimes in...

Journal: :Journal of environmental quality 2013
Katharina Prost Nils Borchard Jan Siemens Timo Kautz Jean-Marie Séquaris Andreas Möller Wulf Amelung

Biochar applications to soils can improve soil fertility by increasing the soil's cation exchange capacity (CEC) and nutrient retention. Because biochar amendment may occur with the applications of organic fertilizers, we tested to which extent composting with farmyard manure increases CEC and nutrient content of charcoal and gasification coke. Both types of biochar absorbed leachate generated ...

2014
Alastair J. Crawford Claire M. Belcher

UNLABELLED PREMISE OF THE STUDY Charcoal particles preserved in sediments are used as indicators of paleowildfire. Most research focuses on abundance as an indicator of fire frequency, but charcoals also convey information about the vegetation from which they are derived. One potential source of information is their morphology, which is influenced by the parent material, the nature of the fi...

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