Vol. 30 No. 3 (1982)

Papers

• Night temperature and number of nodes and flowering of the main stem of glasshouse cucumber (Cucumis sativus L.).

  P.J.A.L. de Lint, G. Heij

  149-159

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• The effect of nitrogen and phosphorus supply on the competition between Cenchrus buflorus and Alysicarpus ovalifolius

  P. Gillard, W.Th. Elberse

  161-171

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• A smoke treatment inducing flower formation in iris bulbs.

  J.A. Schipper

  173-177

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• The influence of mechanical resistance and phosphate supply on morphology and function of maize roots.

  F.R. Boone, B.W. Veen

  179-192

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• Effects of localized supply of H2PO4, NO3, SO4, Ca and K on the production and distribution of dry matter in young maize plants.

  A. de Jager

  193-203

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• An integrated chemical and micromorphological investigation of humic substances in three podzolized soils of the Netherlands.

  J. Drozd, A. Jongerius, S. Kowalinski

  205-226

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• Contamination of soil and street dust with lead and cadmium near a lead smelter at Arnhem, Netherlands.

  M.G. Keizer, M. Hooghiemstra-Tielbeek, F.A.M. de Haan

  227-235

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• The price elasticity of milk production in the EEC and the problem of discriminating between model estimates.

  P.C. van den Noort

  237-240

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