The aim of this study was to determine temporary impacts of different fertilization systems on some labile soil biochemical and biological properties following potato monocropping under arid conditions. Field and incubation experiments were conducted to determine specifically soil organic carbon (SOC); dissolved organic carbon (DOC); dissolved organic nitrogen (DON); microbial biomass C (C mic ), N (N mic ), P (P mic ); bacterial and fungi counts; soil resistance index (SRI); net N mineralization (N min ); and some enzyme activity. Levels of SOC; DOC; N min , C mic , P mic ; bacteria and fungi counts; and soil respiration (SR) were significantly increased under organic and integrated fertilization systems compared with inorganic nano or NPK fertilization system, while levels of microbial biomass N (N mic ) and DON were markedly increased under nano or fertilizers compared to organic or integrated (organic + inorganic) fertilizers. By contrast, higher values of metabolic quotient (qCO 2 ) were recorded in nano or fertilizer treatments suggesting that microbial biomass was less efficient under high maintenance of soil carbon. Enzyme activities of dehydrogenase (DH), β-glucosidase (βG), and acid phosphatase (Ac-P) were in the order of organic > integrated > inorganic fertilization systems, while enzyme activity of urease (UR) was in the vice versa order. Integrated fertilization system recorded greater levels of SOC; DOC; N min , C mic , P mic ; and SR relative to inorganic fertilizers even though applied at lower rates. It is, therefore, important for soils under monocropping system to poise organic and inorganic fertilization system that enhances soil health and soil organic matter build-up.

中文翻译：

---

马铃薯单作干旱条件下不同施肥制度对土壤健康的时间影响

本研究的目的是确定不同施肥系统对干旱条件下马铃薯单作后一些不稳定土壤生化和生物学特性的暂时影响。进行了田间和孵化实验，以确定具体的土壤有机碳 (SOC)；溶解有机碳（DOC）；溶解有机氮（DON）；微生物生物量 C (C mic )、N (N mic )、P (P mic )；细菌和真菌计数；土壤阻力指数（SRI）；净氮矿化（N min ）；和一些酶活性。SOC 水平；文件；N min , C mic , P mic ; 细菌和真菌计数；与无机纳米或 NPK 施肥系统相比，有机和综合施肥系统下土壤呼吸 (SR) 显着增加，而与有机或综合（有机 + 无机）肥料相比，纳米或肥料下微生物生物量 N (N mic ) 和 DON 的水平显着增加。相比之下，在纳米或肥料处理中记录了更高的代谢商数 (qCO 2 ) 值，这表明微生物生物量在土壤碳的高度维持下效率较低。脱氢酶（DH）、β-葡萄糖苷酶（βG）和酸性磷酸酶（Ac-P）酶活性顺序为有机施肥系统>综合施肥系统>无机施肥系统，而脲酶（UR）酶活性则相反. 综合施肥系统记录了更高水平的 SOC；文件；N min , C mic , P mic ; 和 SR 相对于无机肥料，即使施用量较低。因此，