big problem: water container $ Must be inexpensive Accommodate a valve Close at top Self-supporting, frame, etc.—3 psi (1.5-2 m height) min. pressure Easy to clean and transport……..BUT…
Irrigation product customers often have other urgent problems
IDE crop advisory services? Irrigation system design (drip, etc.) Improved varieties and seeds Seed production assistance Disease/pest diagnostic service (i.d.) Pest management advice and recommendations (FFS training programs) Simplified soil testing
Drip lateral screening “Quick and dirty” farmer participatory research (screening) Eliminates the poorest performers rather than identifies “the best” Better performers evaluated in wider farmers’ field testing
Questions—drip lateral lines Which perform best at v. low pressure (1.5-3 psi)? Which result in best veg. crop yields/quality (Asian bed system) How long will they perform well (durability, resistance to clogging)? Which easiest to use, maintain, store? Which most cost effective?
Vegetable seed production High value Proximity to market less important (remote areas) Few “postharvest” problems Collaboration possible with private cos. Contract production model Indegenous/local varieties
Leaf lettuce size
Water Discharge among 6 Drip System Laterals (day 1*)
Water Discharge among 6 Drip System Laterals (day 3*)
Water Discharge among 6 Drip System Laterals (day 7*) Clogging?