Relationship of ryegrass growth to extractable phosphorus in acidic soil amended with phosphate rock, coal combustion by‐product, limestone, and cellulose

Autor:	K. D. Ritchey, Zhenli He, D. C. Martens, M. A. Elrashidi, Virupax C. Baligar
Rok vydání:	1999
Předmět:	Soil test Phosphorus Soil Science chemistry.chemical_element Soil management chemistry.chemical_compound Animal science chemistry Agronomy Phosphorite Soil pH Soil water Cellulose Soil fertility Agronomy and Crop Science
Zdroj:	Communications in Soil Science and Plant Analysis. 30:457-470
ISSN:	1532-2416 0010-3624
DOI:	10.1080/00103629909370217
Popis:	An improved management of phosphorus (P) is crucial for increasing crop production and improving environmental quality of acid infertile soils. Laboratory analyses and greenhouse experiments were conducted to evaluate effects of phosphate rock (PR), coal combustion by‐product (BP), limestone, and cellulose application on the relationship between soil test P and crop growth in acidic soil. Application of PR, BP, limestone, and cellulose increased soil pH, exchangeable calcium (Ca) and magnesium (Mg), and extractable P, and decreased free aluminum (Al) ion in the acid soil. Addition of BP or limestone increased P availability efficiency [PAE, mg dry matter yield (DMY) of plant per mg soil extractable P by Olsen‐P procedure] and P utilization efficiency (PUE, mg DMY of plant per mg P in the plant). There was significant positive correlation between the PAE and BP rates applied alone (r2=O.979, p
Databáze:	OpenAIRE
Externí odkaz:	https://explore.openaire.eu/search/publication?articleId=doi_________::e7d0ee7e6c545b0ba9921575acc661af https://doi.org/10.1080/00103629909370217 Zobrazit plný text záznamu