A material that does not contain any fertilizer element but is added to obtain the desired weight of a mixed fertilizer. Rice variety used to fill vacant areas of an experimental plot. Porous paper used for filtering liquids. A layer of water surrounding soil particles and varying in thickness from 1 or 2 to perhaps 100 or more molecular layers. Seedlings show fine greenish white longitudinal stripes at tip and margin of leaf blade.
Stripes often disappear in the tillering stage.
Consisting of or containing large quantities of fine fractions, particularly of silt and clay. A fire that consumes organic material and burns into the underlying soil itself, for example, a peat fire. Applies in some deepwater rice areas of southern Vietnam. A term describing the consistency of a moist soil that offers distinctly noticeable resistance to crushing but can be crushed with moderate pressure between the thumb and forefinger. The process by which certain nutrient elements in a soil are converted from available form to unavailable form essential for plant growth, being converted from a soluble or exchangeable form to a much less soluble or to a nonexchangeable form.