The Saxmundham rotation experiments: rotation II, 1899–1952

The rotation II experiment at Saxmundham, which ran from 1899-1952, was designed to show how limited quantities of FYM, N and P could best be allocated to the crops of a four-course rotation; there were also tests of additional quantities of N and P. Both FYM and P fertilizer gave large increases in the yield of all crops, but the profitability of the rotation as a whole proved to be little affected by which crops received FYM or P fertilizer. The rates of N tested were too small to provide any information relevant to current farm practices. The optimal dressing of P fertilizer at 1965 prices was 0.5-0.6 cwt. P2O6 per acre. RESP-5403