Original Articles

Influence of soil pH and fertilization on the dry matter production, chemical composition and digestibility of perennial grasses: I. Anthephora pubescens nees¹

Published in: Journal of the Grassland Society of Southern Africa
Volume 3 , issue 2 , 1986 , pages: 52–55

DOI: 10.1080/02566702.1986.9648033

Author(s): L G DuPisani Department of Agriculture & Water Supply (Free State Region), , W L J Van Rensburg Department of Pasture Science, , D P J Opperman Department of Pasture Science,

Keywords: Phytomass , soil culture

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Abstract

The influence of soil pH and fertilization (N, P and Zn) on the dry matter (DM) production, chemical composition (crude protein, P, K, Ca, Mg and Zn content) and organic matter (OM) digestibility of Anthephora pubescens Nees was evaluated in pots. The highest Dm production was obtained in the neutral soil medium (pH 6,5 in H₂O). Both the acid (pH 4,5 in H₂O) and alkaline (pH 7,5 in H₂O) soil mediums adversely affected DM yield, crude protein (CP), Zn content and OM digestibility of A. pubescens. Fertilization invariably increased DM production.

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