Here is another great organization using informal human rights based education on cell phones that is making really great progress for the empowerment of women in west Africa. Http://www.tosten.org. It seems like it could really be useful in your work , they have used it to help end female cutting, and grow the number of women in leadership among other noteable outcomes. I've been learning so much from this process which also contributed to my own personal growth as a female business leader working for global change. There are so many fantastic projects happening in the world. This is a great chance to find out about ones that can improve a project. Good luck Michael.
Also are you training farmers in biochar production for fertility? There are a couple of promising studies on fertility in African soils improving along with water holding capacity. Ghana one study founs, is one place where dark soils have been built up by villagers like in the terrapreta of the Amazon, for up to 700 years.
There's also a very useful report from CIGAR called Why Gender Matters in Agriculture which has several points which I think would be very helpful for your trainers. One of which is understanding gender dynamics and supporting collaboration and cooperation among men and women has been shown to improve women's uptake of ag innovations and development actions. Otherwise benefits accrued by women tend to just be taken by the men who hold more power at the household level.