W. van den Berg

Estimation of Yield of Silage Maize Dry Matter from Volume Harvested or by Sampling Harvested Trailer Loads

H.M.G. van der Werf, W. van den Berg, A. J. Muller, 1994 .

Nitrogen fertilization and sex expression affect size variability of fibre hemp (Cannabis sativa L.)

W. van den Berg, H. V. D. Werf, H. M. G. van der Werf, 1995, Oecologia.