L. Philipps

1. Is the productivity of organic farms restricted by the supply of available nitrogen?
   2002/09/01 by P.M. Berry, R. Sylvester‐Bradley, L. Philipps +4 · 2 citations
2. Is the productivity of organic farms restricted by the supply of available nitrogen?
   2002/09/01 by Berry P.M.*, Berry P.M., R. Sylvester-Bradley +10 · 1 citation
   Social Sciences · #Agricultural economics and policies