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:
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