natural resource management and forages
TRANSCRIPT
Natural resource management and forages
Alan Robertson Consultant
Workshop on forage and fodder tree selection for future challenges —Linking genebanks to forage use, Addis Ababa, 16-20 March 2015
Approaches must encompass:
• Stabilisation of degraded slopes etc (mostly communal)
• Improved sustainability of existing mixed farming systems
Gradual shift towards more intensive management
Lessons from heavily populated parts of AsiaHigher land pressure = higher adoption rates
Protection of crop land
Integrating high quality forages into farming systems
For smallholders, need to emphasise species/strategies with potential for spontaneous
adoption
Reinforcement of stock exclosures
Wynn Cassia
Paspalum nicoraeInfertile acid soils
High seed production
Shrubby stylo
American jointvetch
Desmanthus spp
“Oversowing” communal land(broadcasting legumes e.g. 0.1 – 1.0 kg/ha)
Environmental diversity= Need for wide array of genetic material
Supply of planting materialSeed or vegetative?
Seed – emphasis on perennial or self-regenerating legumes
Vegetative multiplication
All grasses for smallholders Many legumes
Many small, very widely scattered sites300-500 fold increase per year ??
Contract or nursery production feasible (for distribution to new areas)Emphasise farmer-farmer exchange
Do we have existing programs?
• Major government thrust, major donor interest
• Massively funded existing programs
• Chance for major impact with targeted interventions to reinforce existing programs (genetic material, establishment technology, and delivery mechanisms)
• Linkages ??
Gaps
• Local availability of suitable genetic material for degraded sites
• Planting material for areas with emerging salinity
• Forages with superior nutritive value for mixed farming systems
• Sufficient planting material for quick start-up
• We do not need prior “research”.
Quick start
• Multitude of sites with wide array of useful genetic material to facilitate:
– Spontaneous natural spread
– Spontaneous farmer-farmer adoption
– Localised monitoring and refinement of recommendations
– Local training/ extension option
– Opportunistic multiplication….seed or vegetative
Need very large volumes, low-cost seede.g. 200 t/annum of perennial legumes for Ethiopian programs
alone
• Wide range of species
• Clusters of smallholders, and
• Opportunistic harvesting
• Crucial to set an appropriate contract price.
Timing, scale, beneficiaries, partners
• Need immediate familiarisation with existing interventions
• Immediate injection of genetic material into existingprograms…
• Will need free seed program for communal areas
• Scale: dependent only on supply of planting material
• Feeds/seeds program not currently geared for this
Sustainability
• Depends on local community support (promising)
• Depends on conspicuous early benefits
– Erosion control
– Improved hydrology (downslope smallholder irrigation)
– Improved livelihoods (improved access to quality cut/carry feed, improved livestock productivity)
– Improved fuel-wood supplies
– Labour impacts (5-2)
We have the technology now!!!