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Growth of Soyabean (Glycine Max) and Mungbean (Vigna Radiata) in the Post-Monsoon Season after Upland Rice

Published online by Cambridge University Press:  03 April 2017

K. D. Shepherd ,
P.J Gregory ,
T. Woodhead ,
R. K. Pandey  and
E. C. Magbujos
K. D. Shepherd
Affiliation:
Department of Soil Science , University of Reading , London RoadReading, Berks, England RG1 5AQ
P.J Gregory
Affiliation:
Department of Soil Science , University of Reading , London RoadReading, Berks, England RG1 5AQ
T. Woodhead
Affiliation:
International Rice Research Institute, PO Box 933, Manila, Philippines
R. K. Pandey
Affiliation:
International Rice Research Institute, PO Box 933, Manila, Philippines
E. C. Magbujos
Affiliation:
International Rice Research Institute, PO Box 933, Manila, Philippines
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Summary

Shoot and root growth and soil water depletion were studied in mungbean and soyabean grown at three plant populations after non-flooded rice (Oryza sativa) during the post-monsoon dry season in the Philippines. The site had a shallow fluctuating water table (1-2 m) but rooting depth was restricted to 0.8 m by a volcanic tuff layer. Soyabean had a longer duration (89 days) than mungbean (68 days) and intercepted more solar radiation, but from 61 days after sowing was severely stressed and accumulated little dry matter. Mungbean avoided severe water stress due to its short duration. Despite this stress, grain yield (1.0 t ha-1) was similar for the two species and soyabean yielded more grain nitrogen but less straw nitrogen than mungbean. Higher plant population achieved by narrower row spacing increased cumulative light interception and both grain and forage yields in both crops.

K. D. Shepherd, P. J. Gregory, T. Woodhead, R. K. Pandey y E. C Magbujos: Crecimiento de la soja (Glycine max) y del frijol mungo ("Vigna radiata) en la estacidn post-monz6n despuis del arroz de secano.

Resumen

Resumen

El crecimiento del retoño y la raiz y la reducción del agua fueron estudiados en el frijol mungo y la soja cultivados en tres densidades de plantatión después de arroz no-inundado (Oryza sativa) durante la estación seca post-monzón en las Filipinas. La localidad contaba con una capa freática fluctuante de poca profundidad (1-2 m), pero la profundidad de las raices quedaba limitada a 0,8 m debido a una capa de toba volcánica. La soja tuvo mayor duración (89 dias) que el frijol mungo (68 dias), e interceptó una mayor cantidad de radiación solar, pero a partir de los 61 dias después de la siembra sufrió gran estrés y acumuló muy poca materia seca. El frijol mungo evitó un severo estré s por falta de agua debido a su corta duración. A pesar de este estrés, el rendimiento de grano (1,0 t ha-1) rue similar para ambas especies y la soja rindió más nitrogeno en grano pero menos nitrógeno en paja que el frijol mungo. Una mayor densidad de plantation, lograda mediante un espaciamiento de hileras más estrecho, aumentó la interceptión cumulativa de la luz y los rendimientos tanto de grano como de forraje en ambos cultivos.

Type
Research Article
Information
Experimental Agriculture , Volume 24 , Issue 4 , October 1988 , pp. 433 - 441
Copyright
Copyright © Cambridge University Press 1988

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