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14
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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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Methods for fertilizer analysis : part I : analysis of inorganic fertilizers and manures / by B. Evenhuis, V. Dieben and A. van der Horst.
- Koninklijk instituut voor de tropen. Department of agricultural research,
- 1977.
- Amsterdam :
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Principles of food chemistry and food analysis / by B. Evenhuis.
- Koninklijk instituut voor de tropen. Department of agricultural research,
- 1977.
- Amsterdam :
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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 :
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Principles and practices in plant analysis : paper [presented], Rome, 13-17 June 1977 / by B. Evenhuis and P.W.F. de Waard.
- Koninklijk instituut voor de tropen. Department of agricultural research,
- 1977.
- 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 :
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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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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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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 :