Verwysings
- Ashby , E.S. , Mapham , W.R. and Lea , J.D. 1975 . Comparison of treatments to maize by means of growth analysis and the Richard function . Crop Prod. , 4 : 19 – 22 .
- Barnes , D.L. 1972 . Bush control and veld productivity . Mod. Fmg. cent. Afr. , 9 (6) : 10 – 19 .
- Cook , C.W. and Gaebel , C.J. 1962 . The association of plant vigour with physical stature and chemical content of desert plants . Ecology , 32 (3) : 543 – 546 .
- Ferguson , R.B. and Basile , J.V. 1966 . Topping stimulates twig growth . J. Wild. Mgmt. , 30 : 339 – 341 .
- Grunow , J.O. and Kloppers , P.H. 1974 . Dry matter production curves of Ariki ryegrass pastures at Pretoria . Proc. Grassld Soc. sth. Afr. , 9 : 105 – 109 .
- Grunow , J.O. and Bosch , O.J.H. 1978 . Above ground annual dry matter dynamics of the grass layer in a tree savanna ecosystem . Proc. 1st Int. Rangeland Congr.: , : 229 – 233 .
- Lay , D.W. 1965 . Effects of periodic clipping on yield of some common browse species . J. Range Mgmt. , 18 : 181 – 184 .
- Gebaseer op ‘n gedeelte van ‘n D.Sc. (Agric.) verhandeling, Universiteit van Pretoria.
- Adres: Department Plantproduksie (Weidingkunde), Universiteit van Pretoria.