This article provides notes on Soil-Plant Atmosphere Continuum (SPAC). "Because water is generally free to move across the plant-soil, soil-atmosphere, and plant atmosphere interfaces it is necessary and desirable to view the water transfer system in the three domains of soil, plant and atmosphere as a whole...it must be pointed out that, as well as serving as a vehicle for [...]
This article provides notes on the buffering of soil. Buffering refers to resistance to a change in pH. If 1 ml of 0.01 N HCl is added to 1 litre of pure distilled water of Neutral pH; the resulting solution would have a pH of about 5.0. Now, on the other hand if the small amount of acid is added [...]
This article provides a short note on calcareous soils. Zonal soils of arid regions usually contain sufficient amount of lime (CaCO3) at some horizons of the soil profile. When the zone of lime accumulation coincides with the depth of high root concentration, it may be an important factor in plant nutrition. Many soils are formed from limestone or marl parent [...]