G. Semb

发表

Advisory Soil or Plant Analysis and Fertilizer Use I—Comparison of Soil Analysis Methods

J. B. Robinson, G. Semb, 1968 .

A Comparison of Different Analytical Methods for the Determination of Potassium and Phosphorus in Soil Based on Field Experiments

G. Uhlen, G. Semb, 1954 .

Investigations on Potassium Available in Soils Varying in Texture and Parent Material

A. Sorteberg, A. Øien, G. Semb, 1959 .

The Natural Nitrogen Flush in Different Arable Soils and Climates in East Africa

J. B. Robinson, G. Semb, 1969 .

Available potassium in Norwegian soils.

A. Øien, G. Semb, 1960 .

Some Effects of Planting Date and Nitrogen Fertilizer in Maize

P. Garberg, G. Semb, 1969 .