8ARC AND M M, LYNCH D H, VORONEY R P, et al. Residues from a buckwheat (Fagopyrum esculentum) green manure crop grown with phosphate rock influence bioavailability of soil phosphorus[J]. Canadian Journal of Soil Science,2010, 90: 257-266.
9ELFSTRAND S, HEDLUND K, MARTENSSON A. Soil enzyme activities, microbial community composition and function after 47 years of continuous green manuringfj]. Applied Soil Ecology, 2007, 35: 610-621.
10SELVI R V,KALPANA R. Potentials of green manure in integrated nutrient management for rice-A review[J]. Agric. Rev., 2009,30: 40-67.
