Vetch green manure increases rice yields: …Proper depth and timing of incorporation allows maximum results
W. A. Williams, University of California
D. C. Finfrock, Ford Foundation
California Agriculture 17(1):12-13. DOI: 10.3733/ca.v017n01p12.
W. A. Williams is Associate Professor of Agronomy, University of California, Davis; D. C. Finfrock, formerly Specialist in Agronomy, is now Crop Production Advisor, Ford Foundation, New Delhi, India.