- acid humus soil
- 酸性腐殖质土
English-Chinese Dictionary of Agriculture (英汉农业大词典). 2013.
acid humus soil
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Soil — For other uses, see Soil (disambiguation). A represents soil; B represents laterite, a regolith; C represents saprolite, a less weathered regolith; the bottommost layer represents bedrock … Wikipedia
soil — soil1 soilless, adj. /soyl/, n. 1. the portion of the earth s surface consisting of disintegrated rock and humus. 2. a particular kind of earth: sandy soil. 3. the ground as producing vegetation or as cultivated for its crops: fertile soil. 4. a… … Universalium
Humus — (Origin: 1790–1800; < Latin : earth, ground [ humus. Dictionary.com Unabridged (v 1.1). Random House, Inc. 23 Sep. 2008. .] ) is the organic material in soil lending it a dark brown or black colouration. In soil science, humus refers to any… … Wikipedia
Soil life — or soil biota is a collective term for all the organisms living within the soil.OverviewIn a balanced soil, plants grow in an active and vibrant environment. The mineral content of the soil and its physical structure are important for their well… … Wikipedia
Humic acid — is one of the major components of humic substances [http://www.ihss.gatech.edu/whatarehs.html] which are dark brown and major constituents of soil organic matter humus that contributes to soil chemical and physical quality and are also precursors … Wikipedia
humic acid — a brown, melanin tinted mixture of polymers, found in lignite, peat, and soils, where it acts as a cation exchange agent: used in drilling fluids and inks. [1835 45] * * * ▪ chemistry one of two classes of natural acidic organic polymer… … Universalium
fulvic acid — ▪ chemical compound one of two classes of natural acidic organic polymer that can be extracted from humus found in soil, sediment, or aquatic environments. Its name derives from Latin fulvus, indicating its yellow colour. This organic… … Universalium
FAO Soil Classification System — ▪ Table Soil classification system of the Food and Agriculture Organization soil group abbrevi ation defining characteristics name derivation percent of Earth s land area See as table: Soils defined by parent material Andosol AN volcanic… … Universalium
podzolic soil — ▪ pedology podzolic also spelled Podsolic, also called Lessivé Soil, soil usually forming in a broadleaf forest and characterized by moderate leaching, which produces an accumulation of clay and, to some degree, iron that have been… … Universalium
brown podzolic soil — noun : any of a group of acid zonal soils developed in temperature or cool temperate humid regions under deciduous or mixed deciduous and coniferous forest and characterized by dark brown humus mineral soil covered with a thin mat of partly… … Useful english dictionary
peat soil — noun : a soil consisting largley of peat and consequently rich in humus and of acid reaction … Useful english dictionary
