Staff Publications

Staff Publications

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    'Staff publications' is the digital repository of Wageningen University & Research

    'Staff publications' contains references to publications authored by Wageningen University staff from 1976 onward.

    Publications authored by the staff of the Research Institutes are available from 1995 onwards.

    Full text documents are added when available. The database is updated daily and currently holds about 240,000 items, of which 72,000 in open access.

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    Biological nitrogen fixation of soybean in acid soils of Sumatra, Indonesia
    Waluyo, S.H. - \ 2000
    Agricultural University. Promotor(en): W.M. de Vos; L. 't Mannetje; L.T. An. - S.l. : S.n. - ISBN 9789058082954 - 151
    glycine max - sojabonen - bodembiologie - stikstoffixatie - stikstofbindende bacteriën - rhizobium - bradyrhizobium - inoculatie - entstof - biochemische technieken - dna-fingerprinting - stamverschillen - stammen (biologisch) - zaadbehandeling - omhullen - zure gronden - bodemaciditeit - bekalking - sumatra - indonesië - glycine max - soyabeans - soil biology - nitrogen fixation - nitrogen fixing bacteria - rhizobium - bradyrhizobium - inoculation - inoculum - biochemical techniques - dna fingerprinting - strain differences - strains - seed treatment - pelleting - acid soils - soil acidity - liming - sumatra - indonesia

    The aim of this study is to improve soybean cultivation in transmigration areas, especially in Sitiung, West Sumatra. However, these soils are very acid, and have a high P-fixing capacity. To reduce the amounts of fertilisers, normally 5 - 7 ton lime ha -1 and 100 kg P as TSP, seed, pelleted with lime (60 kg ha -1 ) and TSP (10 kg ha -1 ), was introduced. In this way only 2 ton lime ha -1 are required.

    Soybean can fix nitrogen (BNF) in symbiosis with ( Brady ) Rhizobium bacteria. However, these acid soils in general, have low numbers of ( Brady ) Rhizobium . By inoculating the soils with ( Brady ) Rhizobium , BNF of soybean, and yield, were considerably improved.

    A study was made of the indigenous ( Brady ) Rhizobium population in view of the following:

      Although at the beginning the numbers may be low, by repeated soybean cultivation, the numbers will increase, and they may interfere with inoculation of effective ( Brady ) Rhizobium strains.These indigenous ( Brady ) Rhizobium are adapted to local stress conditions, and they may be useful for the improvement of strains, to be used as inoculants.

    Using molecular techniques, indigenous strains derived from soil samples from old soybean areas (Java) and from new soybean areas (Sumatra) were classified in more detail. Most likely B. japonicum is the dominant strain in Java while in Sumatra B. elkanii is more present. A Sinorhizobium fredii -like strain was isolated from one soil sample from Java.

    Biological nitrogen fixation: rhizotron studies as an intermediate step between the laboratory and the field.
    Bobbink, A. ; Diep, C.N. ; Waluyo, S.H. ; Lie, T.A. - \ 1994
    In: Recent developments in biological nitrogen fixation research in Africa / Sadiki, M., Hilali, A., - p. 350 - 359.
    Effect of lime-pelleting and (lime + TSP) pelleting of soybean seeds on BNF in acid soils 1. Pot and rhizotron experiments.
    Waluyo, S.H. ; Lie, T.A. ; Hendratno, K. - \ 1993
    In: Abstract Workshop Biological nitrogen fixation by soybean in acid soils, Cisarua-Bogor, Indonesia - p. 35 - 36.
    Effect of lime-pelleting of soybean seeds on BNF in acid soils.
    Waluyo, S.H. ; Hendratno, ; Lie, T.A. - \ 1992
    In: Abstract Workshop Biological nitrogen fixation. Biotechnol. Res. and Devel., Center Can Tho Univ., Vietnam - p. 11 - 11.
    Symbiotic nitrogen fixation in acid soils: studies in rhizotron system.
    Lie, T.A. ; Bobbink, A. ; Waluyo, S.H. ; Diep, C.N. - \ 1992
    In: Abstract 5th Conf. African Assoc. Biological Nitrogen Fixation, Rabat, Marocco - p. 76 - 76.
    Baluran rapid appraisal, Bularan National Park, East Java, Indonesia, Nov. 20-Dec. 15, 1991.
    Haaften, H. van; Nugroho, A.D. ; Djuwantoko, ; Hafis, J. ; Hamid, A. ; Ida, ; Kharisma, ; Marfuah, ; Rahayu, L. ; Waluyo, A. - \ 1992
    Unknown Publisher - 65 p.
    Symbiotic nitrogen fixation in acid soils: rhizotron as a model system to simulate field conditions.
    Lie, T.A. ; Diep, C. ; Waluyo, S.H. - \ 1991
    In: Proc. 13th North-Am. Symbiotic nitrogen fixation Conf., Banff, Canada - p. 82 - 82.
    Competition between nodulating and non-nodulating Rhizobium strains: Delay of nodulation.
    Lie, T.A. ; Nijlands, G.J. ; Waluyo, S.H. - \ 1988
    In: Physiological limitations and the genetic improvement of symbiotic nitrogen fixation / O'Gara, F., Manian, S., Drevon, J.J., Dordrecht : Kluwer Academic Publishers - p. 127 - 136.
    Dukuh Tapak, Impact of industrialization policy and development in West-Semarang industrial area.
    Topatimasanj, R. ; Schutter, J. de; Buuren, J.C.L. van; Wahyuningsih, N.E. ; Waluyo, M.E. - \ 1986
    Unknown Publisher
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