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Vol. 18 No. 1 (1970)
Vol. 18 No. 1 (1970)
Published:
1970-02-01
Papers
Problems connected with evaluation of the process of planned regional development
D.B.W.M. van Dusseldorp, B.E.J.C. Lekanne dit Deprez
3-11
PDF
Historical notes for an eventual regionalization of national development efforts in Sierra Leone, West Africa
J. Veenstra
12-25
PDF
Calculation of production of potatoes.
P.E. Rijtema, G. Endrodi
26-36
PDF
The influence of soil structure and air content on gas diffusion in soils.
J.W. Bakker, A.P. Hidding
37-48
PDF
Plant Physiology and some aspects of future agriculture.
E.C. Wassink
49-61
PDF
The effect of vitamin C on egg shell quality under high environmental temperatures.
A.R. El Boushy, M. van Albada
62-71
PDF
Fertility and milk production in Dutch Friesian cattle.
J.H.M. Metz, R.D. Politiek
72-83
PDF
A fattening trial with yearling rams of the Saudi Arabian Najdi and Arabi breeds.
H. Appelman
84-88
PDF
Spacing experiments with brussels sprouts grown for single-pick harvests.
E.W.M. Verheij
89-104
PDF
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