Response of Soyabean Crops to


By jpeza - Posted on 25 Junio 2009

Fecha Publicación: 
1 Ene 1998
Datos del paper
Autor Principal: 
George R. Mandirnba
Volumen: 
16
Página Inicial: 
15
Página Final: 
23
Abstract: 

The use of Mucuna pruriens as source of N for the succeeding poor N-fixing soyabean genotypes

was tested dunng the 1991192 rainy season at the IDR site. Field studies revealed that M. pruriens

produced 3 1 nodules plant-l with a nodule mass of 306 mg plant-' and a crop N yield of 340 kg

ha-'. This high nodulation was attnbuted to a wide range of indigenous rhizobia identified as strains

of Bradyrhizobia isolated from nodules of Sfylosanthes gracilis (two isolates G7, G7 1). Crotalariu

juncea (two isolates C4, C41), M. pruriens (two isolates 11, 13), Mimosa pudicu (three isolates W3,W31, W32) and

Phuseolus vulgaris (one isolate H51). which formed nodules with dark red intenorson M. pruriens as revealed by the plant-infection test. The antibiotic resistance profile differed

among the various isolates, and among isolates of the same plant of ongin. Consequently, the use

of Mucuna as green manure for the succeeding soyabean crops is quantified as a fertilizer-N

equivalent of as much as 95 and 80 kg N ha-l for genotypes cv. FN3 and cv. IRAT 274

respectively. Our findings illustrate the high agronomic efficiency of M. pruriens for soyabean.

Dirección del Autor: 

Laboratoire de Biotechnologie, lnstitut de Développement Rural, Km 17,

Université, B. P. 13346, Brazzaville, Congo

Keywords: 
Mucuna pruriens ;Sfylosanthes gracilis ; Phuseolus vulgaris ; Crotalaria juncea
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