Effects of Fertilisation Using Organic Waste Products with Mineral Complementation on Sugarcane Yields and Soil Properties in a 4 Year Field Experiment

Sugarcane cultivation is suitable for the exploitation of organic waste products. However, minimum complementary mineral input necessary optimal fertilisation. Control fertilisation treatments with mulch (MCM) or without (MC) were compared two treatments, a pig slurry (PSM) and (PS), sugarcane vinasse (SVM) (SV) on Nitisol in French Reunion Island. The yields obtained different differed each year. no trend was observed significant recurrent effect presence identified over course 4 year experiment. Soil pHw pH KCl measured increased from 3 including products (PS, PSM, SV SVM) but remained constant only (MC MCM). With exception PS which significantly higher 4, soil carbon content not modified by treatments. cation exchange capacity slightly PSM on. differences properties can be explained nature products, accumulation nutrients after several applications, specific characteristics crop. improvement third reflected yield because it too weak, crop explores much larger volume soil.