- background matter content in soil
- Экология: фоновое содержание вещества в почве
Универсальный англо-русский словарь. Академик.ру. 2011.
Универсальный англо-русский словарь. Академик.ру. 2011.
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 test — In agriculture, a soil test is the analysis of a soil sample to determine nutrient content, composition and other characteristics, including contaminants. Tests are usually performed to measure fertility and indicate deficiencies that need to be… … Wikipedia
No-till farming — The article Conservation tillage redirects to this page. This article primarily discusses No till farming, which is one of several different conservation tillage techniques. Some others are Strip till and Minimum tillage … Wikipedia
Iran — /i ran , i rahn , uy ran /, n. a republic in SW Asia. 67,540,002; ab. 635,000 sq. mi. (1,644,650 sq. km). Cap.: Teheran. Formerly (until 1935), Persia. * * * Iran Introduction Iran Background: Known as Persia until 1935, Iran became an Islamic… … Universalium
Organic farming — Agriculture General … Wikipedia
Total organic carbon — (TOC) is the amount of carbon bound in an organic compound and is often used as a non specific indicator of water quality or cleanliness of pharmaceutical manufacturing equipment. A typical analysis for TOC measures both the total carbon present… … Wikipedia
John D. Hamaker — (1914–1994), was an American mechanical engineer, ecologist, agronomist and science writer in the fields of soil remineralization, rock dusting, mineral cycles, climate cycles and glaciology. Contents 1 Biography 2 Discoveries inventions 3… … Wikipedia
Dutch standards — are environmental pollutant reference values (i.e., concentrations in environmental medium) used in environmental remediation, investigation and cleanup.[1] Barring a few exceptions, the target values are underpinned by an environmental risk… … Wikipedia
Marsupial lawn — A marsupial lawn at Mount William National Park Marsupial lawns are portions of land where the soil moisture is much higher than in the vegetation surrounding it. These high moisture levels create lawns that attract a large amount of grazing by… … Wikipedia
Western Africa — ▪ region, Africa Introduction region lying south of the Sahara and east and north of the Atlantic Ocean. It is latitudinally divided into two parallel belts of land: the western portion of the Sudan, a geographic area that stretches across… … Universalium
Resilience (ecology) — For other uses, see Resilience (disambiguation). Lake and Mulga ecosystems with alternative stable states[1] In ecology, resilience is the capacity of an ecosyst … Wikipedia