Parwada, Cosmas http://orcid.org/0000-0002-7960-4303
Van Tol, Johan
Funding for this research was provided by:
Water Research Commission
Agricultural Research Council
Article History
Received: 18 May 2017
Accepted: 18 January 2018
First Online: 22 January 2018
Compliance with ethical standards
:
: There are no conflict of interests regarding the publication of this paper.