The status and importance of crude protein and macro minerals in native pastures growing on Vertisols of the central highlands of Ethiopia

Autor: Lemma Gizachew, G.N. Smit
Rok vydání: 2012
Předmět:
Zdroj: Journal of Environmental Management. 93:177-184
ISSN: 0301-4797
DOI: 10.1016/j.jenvman.2011.09.003
Popis: The effects of pasture management, season and soil nutrient status on crude protein (CP) and macro mineral concentration of native pasture was studied in the Vertisol areas of the central Ethiopian highland. Soil and herbage samples from 18 continuously grazed (CG) and 12 seasonally grazed (SG) pasture sites were analyzed for N, P, Ca, Mg, K and Na. Soil and dry season CG pasture samples were collected in January and February 2001 (dry season: November–February), while wet season CG and SG pasture samples were collected during September 2001 (wet season: April–October). The Potassium concentration (2.55%) of mixed herbage samples from SG pasture exceeded the K values (1.80%) from CG pasture (P
Databáze: OpenAIRE