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Original Articles

Sources of potassium taken up by ryegrass from some soils of the North Island

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Pages 85-91 | Received 23 Apr 1979, Accepted 17 Sep 1979, Published online: 21 Dec 2011

References

  • Davies , E. B. , Hogg , D. E. and Hopewell , H. G. Extent of return of nutrient elements by dairy cattle: Possible leaching losses . Transactions International Soil Conference New Zealand . pp. 3 – 8 .
  • During , C. 1973 . Cation exchange capacity at field pH and its relation to affinity of soils for individual cations . N.Z. Journal of Agricultural Research , 16 : 415 – 422 .
  • During , C. and Duganzich , D. M. 1979 . Simple empirical intensity and buffering capacity measurements to predict potassium uptake by white clover . Plant and Soil , 51 : 167 – 176 .
  • Fieldes , M. , Walker , I. K. and Williamson , P. P. 1956 . Clay mineralogy of New Zealand Soils. Part 3. Infrared Adsorption Spectra of Soil Clays . N.Z. Journal of Science and Technology , B37 : 314 – 335 .
  • Fieldes , M. 1968 . Clay mineralogy. In Soils of New Zealand . N.Z. Soil Bureau Bulletin , 26 ( 2 ) : 23 – 36 .
  • Hogg , D. E. 1968 . Lysimeter studies of potassium losses from urine applied to pasture . Transactions 9th International Congress of Soil Science, Adelaide , 2 : 631 – 638 .
  • Jackson , M. L. 1956 . Soil Chemical Analysis , Madison, , USA : Advanced Course, University of Wisconsin .
  • Weeda , W. C. 1978 . Observations on the depth of removal of soil potassium and magnesium by permanent grass-clover pasture . N.Z. Journal of Experimental Agriculture , 6 : 327 – 328 .

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