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by Bennie Diedericks In the world of soil science, all particles of 2mm and larger, are regarded as course fragments or stones. In a soil analysis report the amount of stones in a soil is expressed on a volume basis, e.g., 30% of the soil...

The cation exchange capacity (CEC) is a property of a soil that describes its capacity to adsorb plant nutrient cations (positively charged atoms or molecules such as Ca2+, Mg2+, H+ and K+).     Soil clay minerals and organic matter tend to be negatively charged, thus attracting the...

Die gebruik van blaaranalises en grondanalises is die akkuraatste tegniek om element behoeftes van ‘n boord of wingerd te bepaal, saam met alle ander inligting van ‘n betrokke blok.  Dit bied die versekering van optimale produksie en kwaliteit van ‘n gewas deurdat elke seisoen se...

The aim of plant analysis (leaves, fruit etc.) is to relate the mineral content of the plant (or part thereof) with its physical appearance, growth rate and yield or quality of the harvested product, and also with the nutrient content of the soil. Precise sampling...