In order to reduce the problem of soil erosion affecting farmers in Thailand [1], and achieve sustainability in agricultural productivity, alley farming was introduced, though on a small scale, in Thailand. Few farmers in Chiang Dao in Chiang Mai and Doi Tung in Chiang Rai have engaged in alley farming [2]. The hedgerow species used were leucaena, “Gliricidia Sepium”, “Cajanus cajan”, or “Flemingia macrophylla” [1]. In Chiang Mai, hilltribe farmers, who cultivate sloping lands, adopted alley farming