Original Articles

Comparative response of lucerne (Medicago sativa L.) and sainfoin (Onobrychis viciaefolia Scop.) to applications of P, K and lime

Published in: South African Journal of Plant and Soil
Volume 7, issue 1, 1990 , pages: 76–80
DOI: 10.1080/02571862.1990.10634542
Author(s): V.D. WassermannDepartment of Agricultural Development, Transvaal Region, Republic of South Africa, Marike van den BergGrassland Research Centre, Republic of South Africa

Abstract

A pot experiment and an irrigated field trial in which the response of sainfoin and lucerne to different levels of P, K and lime was compared, are described. The results of the pot experiment suggested a better response to lime in sainfoin than in lucerne. On the other hand, the P and K requirements of lucerne appeared to be considerably higher than those of sainfoin. Apart from an inconclusive result with regard to the P response, the findings of the field trial, which extended over two seasons, supported those of the pot experiment. The response to P was apparently hampered in this trial by the extremely low K reserve of the particular soil. Lucerne outyielded sainfoin by a wide margin in the field and its crude protein content was considerably higher.

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