نتایج جستجو برای: plant samples
تعداد نتایج: 795119 فیلتر نتایج به سال:
A calorific value of various biomass samples (waste of wood, paper, textile, agricultural plants) and liquid biofuels (bioethanol, biodiesel) has been studied in this paper. In addition, a specific combustion heat of the biomass samples was calculated, which almost was coincided with the experimental heating value. It was established that the specific combustion heat of the investigated solid p...
To determine the effect of application of phosphorus (P) and organic matter on soil-plant P relationship at different growth stages of spinach, an experiment was conducted at greenhouse conditions. Treatments consisted of two levels of organic matter (0 and 2% of sheep manure) and three levels of P as Ca(H2PO4)2 (0, 20 and 60 mg P kg-1soil). Soil and plant samples were collected at five growth...
In the present investigation Jatropha and pea plant leafs was used, to germinated the plant by artificial condition through plant tissue culture method. We have taken three methods Method A, B & C to germinate callus, seed, bud and stem. 30 Sample were taken to analyze. In Method A 60% samples were contaminated (fungus and bacteria) and 20% was shown growth. In Method B 66% was contaminated by ...
Background: Heavy metals have detrimental effects on the health of human being. The values of manganese (Mn) and lead (Pb) in some plant species and soil samples in an arid area of Iran were evaluated in this study. Methods: The values of Pb and Mn in 94 plant samples from 8 plant species and the related soil samples in 2010 were considered in Shahroud and Damghan, central Iran. Moreover, th...
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