Analysis of weed management options on weed infestation and cane yield of sugarcane

Ahmadu Suleiman Maryam, . and Takim Felix Ogar, . and Osatuyi Oluwafemi Odunayo, . Analysis of weed management options on weed infestation and cane yield of sugarcane. pp. 479-488. ISSN 1511-3701

A field study was conducted in a sugarcane field in the southern Guinea savanna ecology of Nigeria to document the influence of weed management methods on the pattern of weed seedlings emergence and cane yield of sugarcane across 3 crop cycles. The experiment which had 6 weed management strategies (weedy check; pre-terbutylazine at 2.0 kg a.i/ ha supplementary hand hoeing (SHH) at 4 10 and 16 weeks after planting (WAP); postametryn at 3.0 kg a.i/ha SHH at 10 16 WAP; post-dicamba at 0.5 kg a.i/ha SHH at 10 and 16 WAP; pre-terbutylazine at 2.0 kg a.i/ha post- 2 4-D at 3.0 kg a.i/ ha; and monthly hand hoeing) was laid out in a randomized complete block design and replicated three times during 2014 2015 and 2016 growing seasons. Weed seedlings emergence was monitored in 0.5m quadrats continuously at 1 2 4 6 8 and 12 months after planting (MAP). The result shows that the weed spectrum comprised 57-62 grasses 23-29 broadleaves and 13 were sedges. Dactyloctenium aegyptium had 12.05 relative abundance Digitaria horizontalis (10.84) Cynodon dactylon (8.0) and Tephrosia linearis (8.80) Eclipta alba (7.50) Echinochloa obstusiflora (7.17) were the top dominant weed species identified in plant and ratoon crops respectively. Weed seedling emergence peaks occurred at 1 and 4 MAP across weed control options and crop cycles. Pre-terbutylazine at 2.0 kg a.i/ha post 2 4-D at 3.0 kg a.i/ ha was adjourned to minimized weeds emergence which translated into higher cane yields across crop cycles. This study concludes that pre-emergence application of terbutylazine at 2.0 kg a.i/ha post-emergence of 2 4-D at 3.0 kg a.i/ ha prior to peak periods of weed emergence is the most stable and ideal weed management option for sugarcane estates in the southern Guinea savanna ecology of Nigeria.

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Abstract

A field study was conducted in a sugarcane field in the southern Guinea savanna ecology of Nigeria to document the influence of weed management methods on the pattern of weed seedlings emergence and cane yield of sugarcane across 3 crop cycles. The experiment which had 6 weed management strategies (weedy check; pre-terbutylazine at 2.0 kg a.i/ ha supplementary hand hoeing (SHH) at 4 10 and 16 weeks after planting (WAP); postametryn at 3.0 kg a.i/ha SHH at 10 16 WAP; post-dicamba at 0.5 kg a.i/ha SHH at 10 and 16 WAP; pre-terbutylazine at 2.0 kg a.i/ha post- 2 4-D at 3.0 kg a.i/ ha; and monthly hand hoeing) was laid out in a randomized complete block design and replicated three times during 2014 2015 and 2016 growing seasons. Weed seedlings emergence was monitored in 0.5m quadrats continuously at 1 2 4 6 8 and 12 months after planting (MAP). The result shows that the weed spectrum comprised 57-62 grasses 23-29 broadleaves and 13 were sedges. Dactyloctenium aegyptium had 12.05 relative abundance Digitaria horizontalis (10.84) Cynodon dactylon (8.0) and Tephrosia linearis (8.80) Eclipta alba (7.50) Echinochloa obstusiflora (7.17) were the top dominant weed species identified in plant and ratoon crops respectively. Weed seedling emergence peaks occurred at 1 and 4 MAP across weed control options and crop cycles. Pre-terbutylazine at 2.0 kg a.i/ha post 2 4-D at 3.0 kg a.i/ ha was adjourned to minimized weeds emergence which translated into higher cane yields across crop cycles. This study concludes that pre-emergence application of terbutylazine at 2.0 kg a.i/ha post-emergence of 2 4-D at 3.0 kg a.i/ ha prior to peak periods of weed emergence is the most stable and ideal weed management option for sugarcane estates in the southern Guinea savanna ecology of Nigeria.

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Item Type:	Article
AGROVOC Term:	Sugarcane
AGROVOC Term:	Saccharum officinarum
AGROVOC Term:	Weed control
AGROVOC Term:	Terbuthylazine
AGROVOC Term:	Plant ecology
AGROVOC Term:	Species diversity
AGROVOC Term:	Asteraceae
AGROVOC Term:	Caesalpinioideae
AGROVOC Term:	Combretaceae
AGROVOC Term:	Commelinaceae
Depositing User:	Mr. AFANDI ABDUL MALEK
Last Modified:	24 Apr 2025 00:54
URI:	http://webagris.upm.edu.my/id/eprint/8146

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