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Fertilizer industry development : lecture on 14th August 1974 : 12th international summer course on industrialization, The Hague, The Netherlands / by J.G. de Geus.
- Koninklijk instituut voor de tropen. Department of agricultural research,
- 1974.
- Amsterdam :
-
Nitrate determination in water extracts of soils with the nitrate ion electrode in an alkaline medium / by H.A. van Rosmalen.
- Koninklijk instituut voor de tropen. Department of agricultural research,
- 1976.
- Amsterdam :
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Technology in the perspective of international development co-operation / by A. Aten.
- Koninklijk instituut voor de tropen. Department of agricultural research,
- 1975.
- Amsterdam :
-
Internal report on lecturing at the agronomy department, Agricultural college, Ain Shams university, Cairo, Egypt, December 1977 / by T.A. El Baradi.
- 861.6
- Koninklijk instituut voor de tropen. Department of agricultural research,
- [ca. 1978].
- Amsterdam :
-
Report on the 8th international congress on irrigation and drainage at Varna, Bulgaria, 17th May 1972 - 4th June 1972 / by G.J. Koopman.
- Koninklijk instituut voor de tropen. Department of agricultural research,
- 1972.
- Amsterdam :
-
Baseline study monitoring project of nutrient cycling in shifting cultivation : report on Mae Muang Luang site, Thailand : addendum to progress report no. 1 / by T.Th. Koopmans and J.P. Andriesse.
- 855.2
- Koninklijk instituut voor de tropen. Department of agricultural research,
- 1983.
- Amsterdam :
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Symposium on waste land control and reclamation, Jakarta, 27-29 okt. 1975 : voordrachten : The role of farmyard manure and green manures in soil fertility restoration in the humid tropics / by Th.J. Bredero. Reflections on the problem of upland farming on inferior soils in the humid tropics of S.E. Asia / J.P. Andriesse.
- 850.1
- Koninklijk instituut voor de tropen. Department of agricultural research,
- 1975.
- Amsterdam :
-
Report of visit to the University of Sydney, Australia, and the East-West center in Hawaii to discuss recent work on weeds and their control, May 28th - June 4th 1972 / by P.J. van Rijn.
- 881.1
- Koninklijk instituut voor de tropen. Department of agricultural research,
- 1972.
- Amsterdam :
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Fundamentals of quantitative spectrometric methods / by A.J.M. van Oostrum.
- Koninklijk instituut voor de tropen. Department of agricultural research,
- 1976.
- Amsterdam :
-
Biology of weeds in relation to control measures / by P.J. van Rijn.
- Koninklijk instituut voor de tropen. Department of agricultural research,
- 1972.
- Amsterdam :