Rubber planting brings huge economic benefits, but large-scale rubber plantations have a great impact on the ecological ...

A grey or light-coloured 'E' horizon is the result of severe leaching, or eluviation ... which impedes drainage through the soil. Illuviation is the process of deposition of soil material removed ...

Nitrogen is often the most limiting nutrient in growing plants. When deficient, plant yields and quality are reduced. However ...