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African Crop Science Journal
African Crop Science Society
ISSN: 1021-9730
EISSN: 2072-6589
Vol. 4, No. 3, 1996, pp. 295-303
Bioline Code: cs96069
Full paper language: English
Document type: Research Article
Document available free of charge

African Crop Science Journal, Vol. 4, No. 3, 1996, pp. 295-303

 en Growth and development of Leucaena leucocephala in mixed-silviculture with gmelina intercropped with maize and sorghum in the Nigerian Southern Guinea savanna zone
Fagbemi, T.

Abstract

The performance of Leuceaena leucocephala in mixed-silviculture with
gmelina (Gmelina arborea) and intercropped with maize and sorghum was
assessed on a plinthustalf in the Nigerian Southern Guinea Savanna Zone
over four cropping seasons.  The percentage survival of leucaena
ranged from 53.3% when simultaneously cropped with gmelina and sorghum to
93.3% when grown as a sole crop at the end of the first year.  During the
second and third years, the percentage survival of leucaena simultaneously
intercropped with maize was significantly lower than when grown as a sole
crop.  Sole leucaena achieved a mean annual height growth rate of 2.56 m,
but when hedgerow intercropped with maize or sorghum or gmelina in
combination with maize or sorghum, annual mean height growth rates were
2.03, 2.02, 2.13 and 2.02 m, respectively.  The average bole volume of
leucaena when sole cropped was 13.2 m3 ha-1 within the first 2 years
but increased to 24.3 m3	ha-1	at the end of the third year.  The
effects of gmelina, maize and sorghum on leucaena's dry matter production
were similar to that recorded on volume increment.

Keywords
Hedgerow intercropping, leucaena-gmelina hedgerow, planting sequence, pruning, thinning

 
 fr
Fagbemi, T.

Résumé

La performance du Leucaena Leucocephala dans la silviculture
mixte avec le gmelina (Gmelina arborea) et croisee avec le Mas et le
sorgho etait  evaluee en zone guineenne de savane du sud nigerian sur un sol
du type plinthustalf et sur quatre saisons de recolte. Le pourcentage
de survie de la leucaena s'echelonait de 53,3% quand cela se passe
simultanement avec la gmelima et le sorgho a 93,3% quand cela s'eleve comme seule
recolte a la fin de la premiere annee. Durant la seconde et la troisieme annee
le pourcentage de survie du leucaena qui etait simultanement  associe avec le
mais etait d'une maniere sensiblement plus bas que quand poussait en
monoculture. Leucaena plante seul donnait une croissance annuelle de 2,56 m
alors qu'en association avec le mais ou le sorgho, la croissance annuelle
etait de 2,03, 2,02; 2,13 et 2,02 m respectivement. Le volume annuel d'un
leucaena etait de 13,2 M3 par hectare entre les deux premieres annees; mais elle
s'est eleve a 24,3m3	par hectare a la fin de la 3eme annee quand il est
plante seul. Les effets de gmelima, du mais et du sorgho sur la production en
matiere seche de leucaena seche sont similaires a ceux enregistres quand son
volume augmentait.

Mots Clés
Culture mixte Hedgerow, planter en sequence, elaguer, tanches minces

 
© Copyright 1996 - African Crop Science Society

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