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Original Articles

Factors affecting growth and response of white clover in pots to applied phosphorus

II. Depth of soil sampled in the field

&
Pages 25-29 | Received 23 Oct 1973, Published online: 05 Jan 2012

References

  • Doak , B.W. 1942 . Top-dressing of grassland with phosphates. I. The effect of various phosphatic fertilisers with and without lime on the chemical composition of the soil . N.Z. Journal of Science and Technology , 24 : 71A – 77A .
  • Jackman , R.H. Phosphorus status of some pumice soils . Proceedings N.Z. Grassland Association . pp. 176 – 82 .
  • Olsen , S.R. , Cole , C.V. , Watanabe , F.S. and Dean , L.A. 1954 . Estimation of available phosphorus in soils by extraction with sodium bicarbonate . United States Department of Agriculture, Departmental Circular , 939 : 19 – 19 .
  • Saunders , W.M.H. 1959 . Effect of phosphate topdressing on a soil from andesitic volcanic ash. II. Effect on distribution of phosphorus and on related chemical properties . N.Z. Journal of Agricultural Research , 2 : 445 – 62 .
  • Saunders , W.M.H. 1965 . Phosphate retention by New Zealand soils and its relationship to free sesquioxides, organic matter and other soil properties. . N.Z. Journal of Agricultural Research , 8 : 30 – 57 .
  • Sherrell , C.G. and Saunders , W.M.H. 1974 . Factors affecting growth and response of white clover in pots to applied phosphorus. I. Level of watering at which pots are maintained . N.Z. Journal of Agricultural Research , 17 : 19 – 24 .
  • Truog , E. 1930 . The determination of readily available phosphorus in soils . Journal of the American Society of Agronomy , 22 : 874 – 82 .
  • Williams , C.H. and Simpson , J.R. 1965 . Some effects of cultivation and waterlogging on the availability of phosphorus in pasture soils . Australian Journal of Agricultural Research , 16 : 413 – 27 .

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