Vol. 16 No. 2 (1968)

Papers

• An economic approach to establish design capacities for storm drams in the Indus Plain, West Pakistan.

  A. van der Graaf

  79-90

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• Ammonium fixation and availability of fixed ammonium In some Dutch loam and clay soils.

  D.A. van Schreven

  91-102

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• Competitive interference of plant species in monocultures and mixed stands.

  K. Baeumer, C.T. de Wit

  103-122

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• The relationship between number, position in the fruit and genotype of tomato seeds.

  N. Kedar, K. Verkerk

  123-131

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• Growth-promoting effects of some biocides on grass.

  G.C. Ennik

  132-135

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• Some energy balances of dairy cows at high day and moderate night temperatures.

  A.J.H. van Es, M.W.A. Verstegen, M.S. Saleh Youssef, H.J. Nijkamp

  136-141

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• Dry matter production and light interception of crop surfaces. 4. Maximum herbage production as compared with predicted values.

  T. Alberda

  142-153

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