Vol. 29 No. 3 (1981)

Papers

• An evaluation of the use of chromic oxide, polyethylene glycol and Cr-EDTA as markers for digestive studies along the small intestine of ruminants.

  J. van Bruchem, J. Wiersma, P.W.M. van Adrichem

  151-162

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• Nitrogen and energy balance of a short-rotation poplar forest system.

  J.A. van Veen, H. Breteler, J.J. Olie, M.J. Frissel

  163-172

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• The analysis of volatile N-nitrosamines in the rumen fluid of cows.

  L.W. van Broekhoven, J.A.R. Davies

  173-177

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• Effect of season on early tomato growth and development rates.

  D. Klapwijk

  179-188

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• Tomato plant growth as affected by horizontally unequal osmotic concentrations in rock-wool.

  A. Cerda, J.P.N.L.R. van Eysinga

  189-197

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• Growth of tomato plants in a split-root system as affected by various boron levels in the nutrient solution.

  A. Cerda, J.P.N.L.R. van Eysinga

  199-207

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• Alkane-grown yeast in relation to selenium in broiler diets.

  A.R. El Boushy, W. Binnerts

  209-215

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• The effect of pH on copper toxicity to hydroponically grown maize.

  T.M. Lexmond, P.D.J. van der Vorm

  217-238

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