Planted legume fallows reduce weeds and increase soil N and P contents but not upland rice yields

Saito, K.; Linquist, B.; Johnson, D. E.; Phengchanh, S.; Shiraiwa, T. and Horie, T. 2008. Planted legume fallows reduce weeds and increase soil N and P contents but not upland rice yields. Agroforest Syst, Volume 74 no. 1 p. 63-72