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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 :
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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 :
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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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Report on a study of weed problems in horticultural crops in Venezuela / by P.J. van Rijn.
- 878.2
- Koninklijk instituut voor de tropen. Department of agricultural research,
- 1978.
- Amsterdam :
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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 :
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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 :
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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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Biology of weeds in relation to control measures / by P.J. van Rijn.
- Koninklijk instituut voor de tropen. Department of agricultural research,
- 1972.
- Amsterdam :