Soil fertility
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Soil fertility refers to the ability of soil to sustain agricultural plant growth, i.e. to provide plant habitat and result in sustained and consistent yields of high quality. A fertile soil has the f
Desert east of Birdsville, Australia. Much of Australia is sparsely populated as its desert soils are mostly infertile; thus unable to support larger scale human habitation.
Alkali soil
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Alkali, or alkaline, soils are clay soils with high pH, a poor soil structure and a low infiltration capacity. Often they have a hard calcareous layer at 0.5 to 1 metre depth. Alkali soils owe their u
Rice cultivation / paddyfield in alkali soils
Sodium exchange process between ions adsorbed at the surface of clay particles and those in the soil moisture