Vol. 18 No. 4 (1970)

Papers

• Historical notes on the zero-tillage concept.

  H. Kuipers

  219-224

  • PDF

• Crop husbandry on naturally compacted soils.

  W.A.P. Bakermans, G.T. de Wit

  225-246

  • PDF

• Soil-physical aspects of zero-tillage experiments.

  C. van Ouwerkerk, F.R. Boone

  247-261

  • PDF

• Remarks on soil structure in relation to zero-tillage.

  F.R. Boone, H. Kuipers

  262-269

  • PDF

• Experience with minimum tillage and nitrogen fertilization.

  L.J.P. Kupers, J. Ellen

  270-276

  • PDF

• Experience with minimum tillage and nitrogen fertilization

  L.J.P. Kupers, J. Ellen

  277-282

  • PDF

• First experiences with direct drilling in Germany.

  K. Baeumer

  283-292

  • PDF

• No-tillage as compared to tillage practices in dry-land farming of a semi-arid climate.

  E. Stibbe, D. Ariel

  293-307

  • PDF

• Influence of crop and tillage on mites and springtails in arable soil.

  C.F. van de Bund

  308-314

  • PDF

• Chemical renovation of grassland.

  M. Hoogerkamp

  315-320

  • PDF