نتایج جستجو برای: perlite
تعداد نتایج: 889 فیلتر نتایج به سال:
Investigations of substrates for growing plant saplings is the basis search new components. Currently, large numbers are grown blueberry plantations. Studies on use various organic and inorganic components in relevant order to reduce amount excavated peat. The goal this study was analyze effects mixes peat with different rates spruce, pine fibers perlite growth saplings. To define suitability s...
a general synthetic route for the synthesis of 1,2-dihydro-1-aryl-naphtho[1,2-e][1,3]oxazine-3-one derivatives has been developed using perlite-so3h nanoparticles as efficient catalyst under both microwave-assisted and thermal solvent-free conditions. the combination of 2-naphthol, aldehyde and urea enabled the synthesis of 1,2-dihydro-1-aryl-naphtho[1,2-e][1,3]oxazine-3-one derivatives in the ...
Substrate and rhizosphere microorganisms are key factors affecting seedling growth; however, the effects of substrates bacteria on growth Quercus variabilis not completely understood. Here, Q. seedlings were grown in with without cork flour, as follows: H substrate (charcoal soil/cork flour/perlite, 1:1:2), S (cork 1:1), control (CK) soil/perlite, 3:2). High-throughput sequencing qPCR used to i...
The cookstove requires various materials for different stove components, such as the combustion chamber, body, insulation, and other accessories, which have a significant impact on overall performance of stove. In present study, two hybrid draft biomass (HDBC) models with chamber (stainless steel ceramic refractory cement) were developed tested. Both stoves in combination three insulation (perl...
Modified versions of the Cry3A gene of Bacillus thuringiensis (Bt) were transferred into Norway spruce (Picea abies). Both the biolistic approach and Agrobacterium tumefaciens mediated procedure were employed for transformation of embryogenic tissue (ET) cultures. The latter method proved to be more efficient yielding 70 transgenic embryogenic tissue lines compared with 18 lines obtained by bio...
A field experiment on the “Effect of seed germination and seedling vigour in different soil media for establishment annual drumstick (Moringa oleifera) cv.PKM-1” was conducted during August to November 2021, naturally ventilated polyhouse Department Horticulture, Naini Agricultural Institute, SHUATS, Prayagraj (U.P.). The Randomized Block Design consisting 12 treatments three replications. cons...
Gypsum plasters are often used in buildings to provide passive protection against fire. This paper studies the fire behaviour of lightweight containing moderate and high doses expanded perlite. A propane flame was study heat transmission through plaster from exposed side back (2 cm thickness) using an IR camera. The microstructural mineralogical variations induced by were analysed scanning elec...
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