The two well known techniques which are used in plant-nutrition studies are conveniently designated the solution-culture method and the sand-culture method. Some other slightly soluble materials, such as cinders, gravel, vermiculite, and Sponge Rok or various combinations of these may be substituted for sand. The use of slightly soluble material as a medium, to which the nutrient solution is pr...

The effect of temperature and moisture on the elimination capacity (EC), CO(2) production and spore emission by Fusarium solani was studied in biofilters packed with vermiculite and fed with n- pentane. Three temperatures (15, 25 and 35°C) were tested and the highest average EC (64 g m(-3) h(-1)) and lower emission of spores (2.0 × 10(3) CFU m(-3) air) were obtained at 25°C. The effect of moist...

-The acidic properties of acid-modified montmorillonite and vermiculite were determined by pyridine and ammonia adsorption to correlate with the alkylating and dehydrating activity of the activated samples. Treatment of the minerals with different concentrations of hydrochloric acid results in the variation of overall acidity and density of acidic sites. Infrared (IR) spectral and differential ...

Continental weathering is a fundamental process in releasing magnesium (Mg) from crystalline rocks to the hydrosphere and biosphere. Mg isotopes can be substantially mobilized, re-distributed, fractionated during weathering, therefore used as powerful tool trace biogeochemical cycle of Mg. Causes significant isotopic fractionation behaviors silicate are still not well understood, hindering furt...

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...