References
- Bell , J. E. 1954 . N.Z. Jl Agric. , 88 : 171 – 3 .
- Brockman , J. S. and Wolton , K. M. 1963 . J. Br. Grassld Soc. , 18 : 7 – 13 .
- Castle , M. E. and Holmes , W. 1960 . J. agric. Sci., Camb. , 55 : 251 – 60 .
- Castle , M. E. and Reid , D. 1963 . J. Br. Grassld Soc. , 18 : 1 – 6 .
- Clark , N. A. , Leslie , J. I. and Hemken , R. W. 1966 . Agron. J. , 58 : 280 – 2 .
- Cowling , D. W. 1961 . J. Br. Grassld Soc. , 16 : 281 – 90 .
- Crofts , F. C. 1965 . Aust. J. exp. Agric. Anim. Husb. , 5 ( 19 ) : 417 – 22 .
- Davies , W. and Williams , T. E. 1958 . Proc. Fert. Soc. ,
- During , C. 1952 . N.Z. Jl Agric. , 85 : 233
- During , C. 1955 . N.Z. Jl Agric. , 91 : 199
- 't Hart , M. L. 1956 . Proc. 7th int. Grassld Congr. , : 70 – 9 .
- Herriott , J. B. D. and Wells , D. 1960 . J. Br. Grassld Soc. , 15 : 63 – 9 .
- Hudson , A. W. , Doak , B. W. and McPherson , G. K. 1933 . N.Z. Dep. sci. indust. Res. Bull. , 31
- Lammerink , J. 1959 . N.Z. Jl Agric. , 98 : 44
- Lammerink , J. 1962 . N.Z. Jl agric. Res. , 5 : 101 – 10 .
- N.Z. Soil Bureau . 1954 . Bull. n.s. , 5 : 40 – 42 .
- Reid , D. and Castle , M. E. 1965 . J. agric. Sci., Camb. , 65 : 109 – 19 .
- Scott , R. S. 1963 . N.Z. Jl Agric. , 106 : 117 – 21 .
- Sears , P. D. 1953 . N.Z. Jl Sci. Technol. , 35A ( 1 ) : 68 – 77 .
- Washko , J. B. and Marriott , L. F. 1960 . Proc. 8th int. Grassld Congr. , : 137 – 41 .
- Watkin , B. R. 1954 . J. Br. Grassld Soc. , 9 : 35 – 46 .
- Weeda , W. C. 1965 . N.Z. Jl agric. Res. , 8 : 1060