References
- Davies , E. B. , Hogg , D. E. and Hopewell , H. G. Extent of return of nutrient elements by dairy cattle: Possible leaching losses . Transactions Joint Meeting Comm. IV and V, International Society Soil Science, New Zealand, 1962 . pp. 715 – 20 .
- During , C. 1973 . Cation-exchange capacity at field pH and its relation to the affinity of soils for individual cations . N.Z. Journal of Agricultural Research , 16 : 415 – 22 .
- During , C. and Weeda , W. C. 1973 . Some effects of cattle dung on soil properties, pasture production, and nutrient uptake. I. Dung as a source of phosphorus . N.Z. Journal of Agricultural Research , 16 : 423 – 30 .
- MacDiarmid , B. W. and Watkin , B. R. 1971 . The cattle dung patch. I. Effect of dung patches on yield and botanical composition of surrounding and underlying pasture . Journal of the British Grassland Society , 26 : 239 – 45 .
- Petersen , R. G. , Lucas , H. L. and Woodhouse , W. W. 1956 . The distribution of excreta by freely grazing cattle and its effect on pasture fertility. I. Excretal distribution . Agronomy Journal , 48 : 440 – 4 .