- 行业: Agriculture
- Number of terms: 29629
- Number of blossaries: 0
- Company Profile:
The combination or arrangement of individual soil particles into definable aggregates or peds which are characterized and classified according to size, shape, and degree of distinctness.
Industry:Agriculture
The science dealing with soils as a natural source on the surface of the earth including soil formation, classification and mapping, and the physical, chemical, biological, and fertility properties of soils per se and these properties in relation to their management for crop production.
Industry:Agriculture
A vertical section of the soil cutting through all its horizons and extending into the parent material.
Industry:Agriculture
The capacity of the soil, in its normal environment, to produce a specified plant or sequence of plants under a specified system of management. It emphasizes the capacity of the soil to produce crops and is expressed in terms of yield.
Industry:Agriculture
Water contained in the soil, expressed as a percentage of weight of water per unit weight of dry soil or the percentage of volume of water per unit volume of bulk soil.
Industry:Agriculture
A subspecialization of soil science concerned with soil-inhabiting microorganisms and their relation to agriculture, including both plant and animal growth.
Industry:Agriculture
A soil layer with clear and relatively uniform character running roughly parallel to the soil surface.
Industry:Agriculture
The case where soil in a relatively small area varies greatly in texture, fertility, topography, moisture content, and drainage. Lowers the precision of results in ricefield experiments.
Industry:Agriculture
A method of soil treatment using chemicals wherein the pesticide, in gaseous form, is introduced into the soil by a soil injector; the soil or field position to be treated is first covered with a plastic sheet to prevent volatilization of the chemicals; the soil fumigant is highly toxic as it kills all forms of life--fungi, bacteria, nematodes, snails, and weeds.
Industry:Agriculture
The ability of the soil to supply nutrient elements in the amounts, forms, and proportions needed for maximum plant growth.
Industry:Agriculture
