Vol. 16 No. 3 (1968)

Papers

• Weed biology-a future.

  G.R. Sagar

  155-164

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• The interaction of nitrogen supply and plant density in potatoes.

  K.B.A. Bodlaender, A.J. Reestman

  165-176

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• Agricultural control measures against intestinal parasites in cattle.

  D. Oostendorp, H.E. Harmsen

  177-185

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• Citrus cultivation in Surinam.

  J.A. Samson

  186-196

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• Manganous oxide (MnO) as a fertilizer for controlling manganese deficiency in oats.

  K.W. Smilde

  197-203

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• Two model experiments on the durability of subsoil compaction.

  C. van Ouwerkerk

  204-210

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• Growth of closed green crop surfaces in the Netherlands.

  L. Sibma

  211-216

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• Climate, nitrogen and grass. 2. The influence of light intensity, temperature and nitrogen on vivo digestibility of grass and the prediction of these effects from some chemical procedures.

  B. Deinum, A.J.H. Van Es, P.J. van Soest

  217-223

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