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soil+sample

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  • soil sample — dirvožemio ėminys statusas T sritis ekologija ir aplinkotyra apibrėžtis Tam tikras dirvožemio kiekis, paimtas iš jo genetinio horizonto arba sluoksnio ir skirtas fizikinėms, cheminėms, agrocheminėms ir kitoms savybėms tirti. atitikmenys: angl.… …   Ekologijos terminų aiškinamasis žodynas

  • soil sample —    A sample of soil on which soil properties are to be determined [16] …   Lexicon of Cave and Karst Terminology

  • Soil pH — is the pH of soil water. It is based on the measurement of pH, which depends on the activity of hydrogen ions (H+) in a solution.There are many different methods to collect soil water, all which influence the measured soil pH in one way or… …   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

  • Soil food web — The soil food web is the community of organisms living all or part of their lives in the soil. It describes a complex living system in the soil and how it interacts with the environment, plants, and animals. Introduction Food webs describe the… …   Wikipedia

  • Soil gradation — describes the sizes of individual particles in soil. A sieve analysis and a hydrometer analysis are used to determine soil gradation. The gradation of a soil can be assessed by the values of the coefficient of uniformity and of the coefficient of …   Wikipedia

  • Sample return mission — A sample return mission is a spacecraft mission with the goal of returning tangible samples from an location to Earth for analysis. Sample return missions may bring back merely atoms and molecules or a deposit of complex compounds such as dirt… …   Wikipedia

  • sample preparation — ▪ chemistry Introduction  in analytical chemistry (chemistry), the processes in which a representative piece of material is extracted from a larger amount and readied for analysis. Sampling and sample preparation have a unique meaning and special …   Universalium

  • sample — {{Roman}}I.{{/Roman}} noun 1 people in a survey ADJECTIVE ▪ large, small ▪ total ▪ population ▪ national ▪ ran …   Collocations dictionary

  • soil — {{Roman}}I.{{/Roman}} noun 1 earth ADJECTIVE ▪ deep ▪ shallow, thin ▪ fertile, good, rich ▪ infertile …   Collocations dictionary

  • Soil type — In terms of soil texture, soil type usually refers to the different sizes of mineral particles in a particular sample. Soil is made up in part of finely ground rock particles, grouped according to size as sand,and clay. Each size plays a… …   Wikipedia

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