Opciones de fertilizacion para el cultivo de caña de azucar (saccharum spp.) En Tabasco, Mexico

Organic fertilization can be superior to chemical fertilization in some nutritional and growth parameters. With the objective of evaluating alternative sources of nutrition for sugar cane (Saccharum spp.) cultivation in Tabasco, México, the nitrogen fixing species Canavalia ensiformis and Cajanus cajan were evaluated, with three compost doses and one biofertilizer in a Cambisol fluvic soil (Clayey Eutric), compared to chemical fertilization and an absolute witness of the cultivar Mex 79-431. It was found that the nutritional demand from the crop was KNP, evidencing good growth with relation to straw-stem of 0.33. C. ensiformis showed higher competition to the crop than C. cajan. In the plantilla and soca cycles, average yields of 67 t ha1 and 102 t ha1 were found, respectively, although no significant statistical differences were recorded between the treatments. In the soca cycle, leaf deficiencies of N and K were observed, and K deficiency in the soil without reflecting an effect on the quality of the juice in any cycle as a result of the type of fertilization.