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Changes specific absortion rate (SAR) and exchange sodium percentaje (ESP) of a soil and its influence on microbial activity and biomass

机译:改变土壤的比吸收率(SAR)和交换钠百分比(ESP)及其对微生物活性和生物量的影响

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To evaluate changes in ESP, SAR and its influence on the activity and soil microbial biomass, different concentrations of vinasse from the fuel ethanol industry as an amendment were applied on a soil affected by sodicity with strong physical, chemical and biological limitations. A randomized complete block design was used involving four treatments and three replications, which included soil sampling at the beginning and the end of the process at three different depths (0-20, 20-40 and 40-60 cm). Variables measured were respiration, microbial biomass C, OM%, pH, CIC, EC, SAR and ESP. Biological activity (CO2) and microbial biomass, C showed a significant increase in the ideal range for planting of sugar cane crop.
机译:为了评估ESP,SAR的变化及其对活性和土壤微生物生物量的影响,在受强碱,物理和化学限制的土壤中,应用了燃料乙醇工业生产的不同浓度的酒糟作为修正。使用了随机的完整块设计,涉及四个处理和三个重复,其中包括在过程的开始和结束时在三个不同深度(0-20、20-40和40-60 cm)进行土壤采样。测量的变量包括呼吸,微生物生物量碳,OM%,pH,CIC,EC,SAR和ESP。生物活性(CO2)和微生物生物量C在种植甘蔗作物的理想范围内显示出显着增加。

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