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1041
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Development of criteria and methods for improving the efficiency of soil management and tillage operations, with special reference to arid and semiarid regions : tillage, rainwater infiltration and runoff, sowing and emergence of millets on a sandy soil near Niono, Mali
- Landbouwhogeschool. Grondbewerking,
- 1980-1981.
- Wageningen :
-
Essays in rural sociology : in honour of R.A.J. van Lier / contrib. by H. van de Belt...[et al.].
- Agricultural university Wageningen. Dept. of rural sociology of the tropics and subtropics,
- 1981.
- Wageningen :
-
Major problems of growing sesame (Sesamum indicum L.) in Nigeria / H.A. van Rheenen.
- Veenman,
- 1973.
- Wageningen :
-
Guide de terrain des ligneux sahéliens et soudano guinéens / C. Geerling ; dessins de Juliet Williamson.
- 862
- Veenman,
- 1982.
- Wageningen :
-
Cultures vivrières tropicales : avec référence spéciale au Cameroun / E. Westphal ; avec la collab. de J. Embrechts...[et al.].
- 863.2
- Pudoc,
- 1985.
- Wageningen :
-
Towards the improvement of maize in Nigeria / door C.L.M. van Eijnatten.
- 862.9
- Veenman,
- 1965.
- Wageningen :
-
3me Symposium sur les nouveaux herbicides = 3rd Symposium on new herbicides = 3. Symposium über neue Herbizide : 9-10 décembre 1969, Versailles / [Contr. de R.K. Pfeiffer...et al.].
- Pudoc,
- 1969.
- Wageningen :
-
Agricultural extension in the developing countries : a bibliography / comp. by C.A. de Vries.
- International institute for land reclamation and improvement (ILRI),
- 1968.
- Wageningen :
-
Drainage principles and applications / [contrib. by N.A. de Ridder...et al.].
- International institute for land reclamation and improvement,
- 1972 - 1974.
- Wageningen :
-
Acid sulphate soils : proceedings of the international symposium : 13-20 August 1972, Wageningen / ed. by H. Dost.
- International institute for land reclamation and improvement,
- 1973.
- Wageningen :