Sugarcane yields are declining under successive planting (monoculture) compared to other planting systems in Florida Histosols. To evaluate soil properties related to the sugarcane yield decline, an on-farm study was conducted on soil chemical, biological, and microbial indicators variation with soil samples collected from successive green cane or burnt cane harvest, flooded fallow, and rice and sweetcorn rotation planting sites. Overall, harvest residue incorporated in the soil in green cane harvest and corn rotation increased organic matter, total carbon and C:N ratios which resulted in higher microbial biomass parameters and total PLFA biomass. However, successive planting with burnt cane harvest reduced total soil carbon and hence microbial biomass. Findings suggested that these parameters should be considered for further research to determine specific causes of sugarcane yield decline in successive planting.

与佛罗里达州组织溶胶中的其他种植系统相比，连续种植（单一栽培）下的甘蔗单产正在下降。为了评估与甘蔗产量下降相关的土壤特性，在农场进行了一项土壤化学，生物和微生物指标变化的农场研究，其中包括从连续的绿色甘蔗或焚烧的甘蔗收获，休耕的洪水以及水稻和甜玉米轮作种植中收集的土壤样品网站。总体而言，在绿色甘蔗收割和玉米轮作中掺入土壤的收割残渣增加了有机质，总碳和碳氮比，导致更高的微生物生物量参数和总PLFA生物量。然而，用藤茎收割进行的后续种植减少了土壤的总碳，从而减少了微生物的生物量。