Abstract
Studies on the responses of ginger (Zingiber
officinale Rocs') to various Agroforestry- based crop management practices were
carried out in 2004 and 2005 at Umudike, Nigeria. A 3x3x3 factorial experiment
in a randomized complete block design (RCBD) with three replications was used
to evaluate the effect of zero leaf litter mulch, Dactyladenia barteri, and
Dialium guineense leaf litter mulch, three rates (0, 400, 600kgl ha'1) of
inorganic fertilizer (NPK 15:15:15) and three ginger minisett sizes (10, 20 and
30g) on the growth and yield of ginger. Each of the two other experiment
utilized a 3x3 factorial in RCBD with three replicatipns to determine the
performance of ginger in a ginger + maize intercropping treatment in two
different agroforestry ecosystems involving two woodbased plant; Dactyladenia
barteri and Dacryodes edulis.The study utilized no intercropping (ginger only)
and ginger + maize treatments as well as three inorganic fertilizer rates (0,
400 and 600kg ha-1 NPK15:15:15). Again, a 2x3 factorial experiment in RCBD with
three replication was used to evaluate the effect of weed density and also the
growth and yield of ginger. Three rates (0, 2 and 4t h-1) of D. barteri leaf
litter mulch and two. fertilizer rates 0 and 400kg ha-1 NPK 15:15:15 were used
in the study. A single-factor experiment in RCBD with three replication was
further used to evaluate the growth and yield performance of 2004 sown and post
harvest recovered ginger minisetts (rattoons) remains (10, 20, 30g ginger
minisetts) which were planted in 2005.The 20g and 30g ginger sett sizes
generally gave similar ginger plant survival (%), plant height and diameter (cm
plant'1) which were significantly higher than those of 10g set. In 2004 and
2005 leaf litter mulch of Dialium guineense gave significantly higher number of
flowers ginger plant'1 and ginger rhizome yield than Dactyladenia barteri leaf
litter mulch while the zero mulch gave the least values. No significant
differences existed between the growth and yield attributes ofthe 10, 20 and
30g ginger set sizes over time. The 0, 400 and 600kg ha1 NPK 15:15:15 inorganic
fertilizer rates had no significant effects on ginger survival rate (%), plant
height and diameter (cm plant'1), flower number plant'1 and ginger rhizome
yield (t ha'1) in 2004 and 2005 trials. In both Dactyladenia barteri and
Dactyodes edulis- based ecosystems, intercropping ginger with maize had no
significant effect on the growth and yield attributes of maize. The ginger +
maize intercropping more significantly enhanced the survival rate(%) and the
growth and yield attributes of ginger than the sole ginger cropping in both
agroforestry ecosystems in 2004 and 2005. The 400 and 600 kg ha'1 NPK
15:15:15 rates gave statistically similar, positive effect on the growth and
yield of maize and of ginger in the ginger + maize intercropping treatments.
The growth and yield of the 400 and 600 kg ha'1 NPK 15:15:15 were significantly
higher than those of the control (O kg ha'1 NPK 15:15:15) fertilizer treatment
for both crops. The 2.0 and 4.0 t ha’1 D. barter! leaf litter mulch treatment
gave statistically similar weed densities in 2004 and 2005 and more
significantly depressed weed growth compared to the zero mulch treatment. Other
growth and yield attributes of ginger overtime (2004 and 2005) were
significantly and positively enhanced in the following order of mulch rates:
4>2> 0 t ha’1 D. barter! leaf litter mulch. Plant survival (%), plant
height and diameter (cm plant'1), tiller number plant’1 and rhizome yield (t
ha'1) of ginger were not significantly affected by the various ginger set sizes
sown and recovered in 2004 (rattoon). However, the 10g set (43.6%), followed by
the 20g (41.8%) had the highest weight loss; while 30g set size had
statistically the least weight loss (38.0%) ofthe 2004 sown and recovered
ginger rhizome sett (rattoon).
EKELEDO, E (2024). Responses of ginger (Zingiber officinale Rose) to various Agroforestry- based Crop Management Practices in Umudike, South-Eastern Nigeria:- Ekeledo; Paul I. . Repository.mouau.edu.ng: Retrieved Oct 10, 2024, from https://repository.mouau.edu.ng/work/view/responses-of-ginger-zingiber-officinale-rose-to-various-agroforestry-based-crop-management-practices-in-umudike-south-eastern-nigeria-ekeledo-paul-i-7-2
EKELEDO, EKELEDO. "Responses of ginger (Zingiber officinale Rose) to various Agroforestry- based Crop Management Practices in Umudike, South-Eastern Nigeria:- Ekeledo; Paul I. " Repository.mouau.edu.ng. Repository.mouau.edu.ng, 04 Sep. 2024, https://repository.mouau.edu.ng/work/view/responses-of-ginger-zingiber-officinale-rose-to-various-agroforestry-based-crop-management-practices-in-umudike-south-eastern-nigeria-ekeledo-paul-i-7-2. Accessed 10 Oct. 2024.
EKELEDO, EKELEDO. "Responses of ginger (Zingiber officinale Rose) to various Agroforestry- based Crop Management Practices in Umudike, South-Eastern Nigeria:- Ekeledo; Paul I. ". Repository.mouau.edu.ng, Repository.mouau.edu.ng, 04 Sep. 2024. Web. 10 Oct. 2024. < https://repository.mouau.edu.ng/work/view/responses-of-ginger-zingiber-officinale-rose-to-various-agroforestry-based-crop-management-practices-in-umudike-south-eastern-nigeria-ekeledo-paul-i-7-2 >.
EKELEDO, EKELEDO. "Responses of ginger (Zingiber officinale Rose) to various Agroforestry- based Crop Management Practices in Umudike, South-Eastern Nigeria:- Ekeledo; Paul I. " Repository.mouau.edu.ng (2024). Accessed 10 Oct. 2024. https://repository.mouau.edu.ng/work/view/responses-of-ginger-zingiber-officinale-rose-to-various-agroforestry-based-crop-management-practices-in-umudike-south-eastern-nigeria-ekeledo-paul-i-7-2