Vol. 28 No. 2 (1980)

Papers

• The forage and grain yield of cold-tolerant sorghum and maize as affected by time of planting in the highlands of Kenya.

  H. van Arkel

  63-77

  • PDF

• The adaptation of cold-tolerant sorghum and maize to different environments in the highlands of Kenya.

  H. van Arkel

  78-96

  • PDF

• Investigation into plant characters affecting the competitive ability of perennial ryegrass (Lolium perenne L.).

  T.B. Hofman, G.C. Ennik

  97-109

  • PDF

• A study on loess-derived colluvia in southern Limburg (the Netherlands)

  A.J.J. Bolt, H.J. Mücher, J. Sevink, J.M. Verstraten

  110-126

  • PDF

• An improved method for the isolation and the quantitative measurement of crop roots.

  J.W. Heringa, J. Groenwold, D. Schoonderbeek

  127-134

  • PDF