Soil probe lubrication and effects on soil chemical composition

Autor:	Lyle R. Bjornestad, Alan D. Blaylock, Joseph G. Lauer
Rok vydání:	1995
Předmět:	chemistry.chemical_classification Soil test Chemistry Potassium Extraction (chemistry) Soil Science chemistry.chemical_element Zinc Environmental chemistry Soil water Lubrication Organic matter Agronomy and Crop Science Chemical composition
Zdroj:	Communications in Soil Science and Plant Analysis. 26:1687-1695
ISSN:	1532-2416 0010-3624
DOI:	10.1080/00103629509369401
Popis:	Deep soil‐profile sampling in wet, clayey soils can be difficult. Friction against the probe surface can cause core compression and impedes extraction of intact cores from the probe tube. Lubrication of the probe tube reduces friction and improves core extraction. Two studies were conducted to determine soil‐sample contamination resulting from probe lubrication and possible interactions with probe diameter (surface‐area:volume ratio) and sampling depth. Soils were sampled following probe lubrication and analyzed for organic matter and seven common nutrients. Lubricants tested contained varying amounts of organic matter (24‐>700 g/kg), nitrate‐N (NO3‐N, 3–205 m/kg), phosphate‐P (PO4‐P, 244 mg/kg), potassium (K, 2–1200 mg/kg), and zinc (Zn
Databáze:	OpenAIRE
Externí odkaz:	https://explore.openaire.eu/search/publication?articleId=doi_________::9cadb0dd5e8a31a70ea081c982fb4cf5 https://doi.org/10.1080/00103629509369401 Zobrazit plný text záznamu