I was reviewing the USAID web site and found some interesting PDF's on agricultural topics.
Effect of Hydraulic Head and Slope on
Water Distribution Uniformity of a Low-cost Drip Irrigation System - 11 pgs 2008
http://www.oired.vt.edu/sanremcrsp/wp-content/uploads/2013/11/108DripIrrigation.pdf
How to use the IDE drip kits on uneven slope. Math
Findings and Challenges: Can Vegetables Be Productive under Tree Shade Management in West Java? - 17 pgs 2008
http://www.oired.vt.edu/sanremcrsp/wp-content/uploads/2013/11/808TreeShade.pdf
They go into some depth of numbers for production of 7 vegetables grown in the shade of an agro-forestry system.
Forest = Lumber, fruit, bananas
Vegetables = Long bean, tomato's, chili, eggplant, Amaranth, etc...
http://www.agroforestry.net/
http://www.worldagroforestry.org/
And then the ugly.
Developing Conservation Agriculture Production Systems: An Analysis of
Local Networks - 41pgs 2009
http://www.oired.vt.edu/sanremcrsp/wp-content/uploads/2013/11/1009CAPSnetwork.pdf
At first the article looks like it has
permaculture values, no till, chop and drop, observation of local environment, reducing inputs, maximizing waste use.
But then it's end goal is preached of THHF, Tractors, Herbicides, Hybrid's & Financing (debt)
In the end the system only works if Government money is input.
Thought someone might search the site for information and this could be of help.