Effects of Dust Control Coatings on Phosphorus Fertilizer Dissolution and Uptake

Autor:	Jeffrey S. Jacobsen, Clain Jones
Rok vydání:	2003
Předmět:	Wax Moisture Chemistry Phosphorus Soil Science Biomass chemistry.chemical_element engineering.material Phosphate chemistry.chemical_compound Agronomy visual_art Environmental chemistry visual_art.visual_art_medium engineering Fertilizer Agronomy and Crop Science Dissolution Calcareous
Zdroj:	Communications in Soil Science and Plant Analysis. 34:1791-1801
ISSN:	1532-2416 0010-3624
DOI:	10.1081/css-120023215
Popis:	Granular phosphorus (P) fertilizers are often treated with coatings, such as oil or wax, to decrease dust production during packaging, shipping, storage, and spreading. Unconfirmed reports from the field suggest these coatings may negatively impact plant response to applied P fertilizers. A three-phase study was conducted to determine if these coatings significantly affect P dissolution rates, soil P test levels, P uptake, or yield. Coated and uncoated monoammonium phosphate granules were obtained from two fertilizer manufacturers. In Phase I, fertilizer dissolution rates in water were measured for fertilizer application rates representing both irrigated and dryland conditions. In Phase II, dissolution rates were evaluated in an acid-washed sand at two moisture contents. In Phase III, Olsen P, P uptake, and dry biomass in corn were measured in a low pH and high pH soil for both broadcast and incorporated fertilizer applications. Dust control coatings did not significantly decrease dissolution rates, Olsen...
Databáze:	OpenAIRE
Externí odkaz:	https://explore.openaire.eu/search/publication?articleId=doi_________::e6ae458be4f5ef5e0607b43b0eb3a525 https://doi.org/10.1081/css-120023215 Zobrazit plný text záznamu