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Farmer preference for technologies, reporting first choice from ranking exercises conducted in surveys with the countywide trial in 1999 (MPTF, n = 991), at Songani in 1999 (n = 56), and at Ekwendeni in 2008 (n = 90). Systems compared were all fertilized: monoculture maize, rotation (peanut/maize), SP rotation (semiperennial and annual legume intercrop/maize), and intercrop (pigeonpea and maize).
