Vol. 32 No. 1 (1984)

Papers

• Editorial

  L.K. Wiersum, D.G. van der Heij

  1-1

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• Scion-rootstock relationships in hybrid tea cut roses on Rosa canina 'Inermis'.

  D.P. de Vries, L.A.M. Dubois

  3-7

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• Concentrate feeding and ruminal fermentation. 3. Influence of concentrate ingredients on pH, on DL-lactic acid concentration in rumen fluid of dairy cows and on dry matter intake.

  A. Malestein, A.T. van't Klooster, R.A. Prins, G.H.M. Counotte

  9-21

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• Requirement of fattening pigs for gross and digestible lysine in feeds with easily and poorly digestible protein.

  G.J. Borggreve, W.A.G. Veen

  23-32

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• Relationships between soil albedos and soil and air temperatures.

  C.J. Stigter, Y.B. Mjungu, P.B.M. Lutege, J.M. Waryoba, C.O. Othieno, A.R. Mwampaja

  33-42

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• Effects of a localized supply of Hâ‚‚POâ‚„, NO₃, Ca and K on the concentration of that nutrient in the plant and the rate of uptake by roots in young maize plants in solution culture.

  A. de Jager

  43-56

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• Maternal and genetic influences on production and reproduction traits in pigs

  H.A.M. van der Steen

  57-58

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• Feed intake and production in dairy breeds dependent on the ration.

  S. Korver

  59-61

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• Development of improved wheat genotypes in Zambia using incomplete resistance against rusts.

  W.A.J. de Milliano

  61-64

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• The African catfish - A new species for aquaculture

  H. Hogendoorn

  64-67

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• The influence of vegetation on acoustic properties of soils. Measurements of acoustic impedances of outdoor surfaces with application to traffic noice reduction

  L.A.M. van der Heijden

  67-69

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