摘要
我们的研究发现,磁场处理土壤引起一系列土壤机械物理性质的变化,如粘着力、粘结力、剪切力降低。磁场处理也引起土壤比表面ξ电位及表面电荷等电化学性质的变化。将这些理论问题应用于实际生产中去,我们研制了磁性犁,通过大量的试验证明:磁性犁可降低土壤耕作阻力,节省油耗,提高耕作质量,如能推广,可望得到巨大的经济效益和社会效益。
The effect of magnetic plouph on plouphing resistance was studied. The results show that magnetic plouph could reduce plouphing resistance markedly. Magnetic two-share plouph reduced plouphing resistance by about 21%, While magnetic four-share plouph decreased plouphing resistance by about 10% and saved oil by about 10%. The principal mechanism is that magnetic field could cause the changes of soil physical chemical properties. For example, magnetic field could cause a reduction in the specific surface, cohesive force, shear force, zeta-potential etc. of soil and an increase in the aggregation and water potential.
The results show that magnetic plough would be efficieat in reducing plouphing resistance, saving energy and improving soil physical and chemical properties.
出处
《土壤学报》
CAS
CSCD
北大核心
1993年第1期79-87,共9页
Acta Pedologica Sinica
基金
高校博士学位基金
关键词
磁化犁
磁处理
土壤磁学
Magnetic plouph
Magnetic treatment
Soil magnetism
