- 産業: Agriculture
- Number of terms: 29629
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The ability of the soil to supply nutrient elements in the amounts, forms, and proportions needed for maximum plant growth.
Industry:Agriculture
The unconsolidated mineral matter on the surface of the earth that serves as a natural medium for growth of land plants. This has been subjected to and influenced by genetic environmental factors of parent material, climate (including moisture and temperature), macro- and microorganisms, and topography, all acting over a period of time and producing a product--soil--that differs from the material from which it is derived in many physical, chemical, biological, and morphological properties.
Industry:Agriculture
A relation between soluble sodium and soluble divalent cations which can be used to predict the exchangeable sodium percentage of soil equilibrated with a given solution.
Industry:Agriculture
The process whereby the exchangeable sodium content of a soil is increased.
Industry:Agriculture
To be completely covered by water for a determined length of time or until the object is saturated.
Industry:Agriculture
A disease caused by fungi of the order Ustilaginales; in rice smut, the grains turn into black masses of spores which can be disseminated by wind, rain, and contact.
Industry:Agriculture
Fertilizer that releases the wanted element at a slow rate. A term used interchangeably with delayed release, controlled release, controlled availability, slow acting, and metered release to designate a rate of dissolution (usually in water) much less than is obtained for completely water-soluble compounds.
Industry:Agriculture
