cassava weed management project progress presentation
TRANSCRIPT
www.iita.orgA member of the CGIAR Consortium
Sustainable Weed Management Technologies for Cassava Systems in
Nigeria The Journey so far
Alfred Dixon et al.
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1. Impact of weeds2. Project goal, components & activities3. Project partners4. Updates5. Challenges6. Looking ahead
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Impact of Weeds in Cassava Weeds causes low productivity of
cassava in Africa.
Hand weeding is predominant weed control practice.
Farmers weed 3X, but more where Imperata, Cyperus spp, etc. are predominant.
Weeding takes 50 to 80% of total labor budget.
Women do >90% of the hand-weeding
69% of farm children (ages of 5-14) skip classes in school and used in weeding.
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Project Goal and Components
Goal Help smallholder cassava growers achieve sustainable
increases in their productivity and incomes through the development and adoption of improved weed control methods.
Components Agronomic manipulations including mechanical weeding. Herbicide screening for efficacy and economic merit. Integrated weed management that is effective and
sustainable. Extension (including training on safe use of herbicides). Project Management, including communications, scaling up,
M&E, nd project management capacity building.
Duration: 5 Years
Beneficiaries: 125,000 households
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Mechanical weeding:
Short handle hoeMotorized weeder
Brush cutterLong handle hoe
Herbicide screening:
Pre –emergence herbicides
Post –emergence herbicides
Agronomic practices:
TillageCassava variety
Plant densityFertilization
Intercrop
On-farm trials, demonstrations:
Raising awareness for weed control
Raising awareness for safety of sprayers
Training of trainers
Training of spray service providers
Project Activities
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Project PartnersDr Adeyemi Olojede & Team
FEDERAL UNIVERSITY OF AGRICULTURE ABEOKUTA
Dr P. Olorunmaiye & Team
UNIVERSITY OF AGRICULTURE MAKURDI
Dr Hughes Usman & Team
NAFDAC, NESREA, SON, FMARD, State ADPs, CropLife Nigeria, Bayer AG, Valent, Syngenta, Monsanto, Saro AgroSciences
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Updates: Agronomy trials
Tillage [MT, Ridge]. Variety [TMS 30572 {branching}, TME
419 {erect}]. Cassava density [10, 000 to 25, 000
plants/ha]. Cropping System [Sole,
Cassava/Maize]. Fertilizer [-Fertilizer, +Fertilizer]. 8 sites [in Abia, Ogun, Oyo, Benue states]
2 seasons & 2 years
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0
50
100
150
200
250
300
Cum
ulat
ive
Wee
d dr
y m
atte
r (g
ram
/m2 )
Ido
Flat
Ridge
Moniya
Intercrop
Mono-crop
TME419
TMS30572
Fertilizer
Nil
p<0.0001 ns
p<0.0001
nsns
Site SystemVarietyFertilizerTillageCumulative weed biomass by factor in a second season planted cassava crop.
Weed Biomass
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Results of Agronomy trials (Av: all sites)
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Mechanical weeding trials On-station field trials in 2015: 4 sites on ridged and flat soilEquipment: spike, manual rotary hoe, cone hoe, small and large mantis weeders and brush cutter . On-station field trials in 2016:4 sites on ridged and flat land with gender includedEquipment: Small & Large mantis, brush cutter & long handle hoe. On-farm demonstration started in
2016:8 sites on ridged and flat soil with gender included.Four treatments:
Large mantis Small mantis Long handle hoe Short handle hoe (farmer
practice)
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Updates on results of mechanical weeding presented at Workshop yesterday (Abeokuta)
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Herbicide selection in 2014
• Chemical
• Chemical companies
• CropLife Nigeria• National Partners• NAFDAC• NESREA• FMARD• Purdue University
Using due
diligence
2014
22 Pre
19 Post
E
2015
12 Pre
6 Post
E
BayerSyngentaValentFMCMonsantoBASFSaro AgroSciencesDuPont
4 locations2 seasons (Ibadan)49 PreE herbicides trt. (3 reps)33 PostE herbicides trt. (3 reps)
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Sencor Plus (2L/ha) at 10WAT without post emergence treatment
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Merlin Total (0.5L/ha) at 10WAT without post emergence treatment
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Gardoprim Plus Gold (5L/ha) at 10WAT without post emergence treatment
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Fierce (0.32kg/ha) at 10WAT without post emergence treatment
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On-farm demonstration trials in 2016
50 sites
25 cassava/Maize sites(Abia = 6; Benue = 6, Ogun=6,
Oyo=7)25 Cassava mono crop sites
(Abia = 6; Benue = 6, Ogun=6, Oyo=7)
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Maize harvest from cas/maz intercrop: 7 sites
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FPractice
NoPre
Movon
Fierce
GardoPrim
Primextra
Lagon
0 200 400 600 800 1000 1200 1400
704.2
927.2
1,077.2
1,184.5
1,238.1
1,284.1
1,296.7
Price ($) of fresh maize ha-1
Revenue from sales of fresh maize after Pre-emergenceE herbicides in cass/maz intercrop: 7 sites [Post]
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Farmer field day
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Formation of Spray Service Providers in 50 sites at community level
Spray Service Providers
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50 sites X 1000 farmers = 50,000 farmers
One farm, one EA
20 SSP reach are organized
20 SSP reach 50 farmers per season= 1000
Projected reach per site via SSP in 2016
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Interactions with Private sector in-country
Monsanto participated in our FFD
Syngenta participated in our FFD
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Social Media
Contacts
Impressions
Page
Members
Uploads
Pins
Total views
Downloads
Total
LinkedIn 1,389
1,389
Twitter 66,374
66,374
Facebook 547
311
858
Flickr 80 107 107Pinterest 11
05,199 5,309
Slide share
7,741 114 7,855
YouTube 10 330 330Website 13 1,45
61,456
Total 1,389
66,374
547
311
103 110
13,377
1,570
83,678
Website: www.cassavaweeds.org
Cumulative Project reach through social media
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Weed control method
Tuber yield (t/ha)
Crop value
Weeding cost
Marging over weeding cost
Marging over HW
Margin
$/ha $/ha $/ha $/ha %
Glyphosate 24.8 629 74 556 251 83
HWA 3 Farmer Practice
20.8 507 203 304 0 0
Partial budget analysis to determine margins over weed management treatment in cassava in Imperata dominated field in Nigeria. Source: Chikoye et al., 2006.
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WhatsApp (cassava matters) 256 farmers/stakeholders
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Persons reached in newspapers
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Challenges1. Availability of herbicides: working with
herbicides companies both in-country and outside to ensure availability.
2. Availability of mechanical weeders: working with Nigerian engineers/fabricators to adapt and produce locally made weeders in-country.
3. Agrochemical adulteration: working with FMARD and NAFDAC and SON and advise to farmers to buy from reputable companies and their agents
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Intensify screening effort of mechanical weeding machines for small and large scale cassava farms.
Work with mechanization unit in IITA and a group of identified Nigerian Engineers and Fabricators for production of motorized weeding machines.
Promote and out-scale few pre and post emergence herbicides for effective weed control in cassava.
Promote integrated weed control options and GAP for optimum growth and increased productivity of cassava.
Looking ahead
Locally fabricated Rotary Weeder
Wiggle weeder
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Thank you for listening