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New Zealand Journal of Experimental Agriculture Volume 14, 1986 - Issue 4
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Original Articles

Chemical soil test prediction of pasture responses to potassium on recent soils of the South Island west coast

P.H. Williams Agricultural Research Division, MAF, P.O. Box 162, Greymouth, New Zealand; Soil Science Department, Massey University, Palmerston North, New Zealand
,
J.D. Morton Agricultural Research Division, MAF, P.O. Box 162, Greymouth, New Zealand
&
B.L.J. Jackson Whatawhata Hill Country Research Station, MAF, Private Bag, Hamilton, New Zealand
Pages 411-415 | Received 26 Mar 1986, Published online: 06 Jan 2012

References

  • Blakemore , L.C. , Searle , P.L. and Daly , B.K. 1977 . Methods for chemical analysis of soils . New Zealand Soil Bureau scientific report , 10A : A6.1 – A6.7 .
  • Cornforth , I.S. 1980 . “ Soils and fertilisers, soil analysis, interpretation ” . In AgLink AST 8 , 3 – 3 . Wellington : New Zealand Ministry of Agriculture and Fisheries .
  • Cornforth , I.S. and Sinclair , A.G. 1984 . Fertiliser and lime recommendations for pasture and crops in New Zealand , 2nd , 66 – 66 . Wellington : New Zealand Ministry of Agriculture and Fisheries .
  • During , C. and Campkin , R. 1980 . Sources of potassium taken up by ryegrass from some soils of the North Island . New Zealand journal of agricultural research , 23 : 85 – 91 .
  • Hogg , D.E. 1957 . The assessment of available potassium in soils . New Zealand journal of science and technology , 38A : 1015 – 1024 .
  • Jackson , B.L.J. 1985 . A modified sodium tetraphenylboron method for the routine determination of reserve-potassium status of soil . New Zealand journal of experimental agriculture , 13 : 253 – 262 .
  • Metson , A.J. 1980 . Potassium in New Zealand soils . New Zealand Soil Bureau scientific report , 38 : 61 – 61 .
  • Mew , G. 1980 . Soils, forestry and agriculture of the Grey Valley, South Island, New Zealand . New Zealand soil survey report , 46 : 158 – 158 .
  • Weeda , W.C. 1978 . Observations on the depth of removal of soil potassium and magnesium by permanent grass/clover pasture . New Zealand journal of experimental agriculture , 6 : 327 – 328 .

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