Growing-season soil microbial respiration response to long-term no tillage and spring ridge tillage

• DOI: 10.25165/j.ijabe.20201304.5587
• Publication Date: 2020-08-18T07:04:10Z
• Authors: Gang Wang; ; Honglei Jia; Jian Zhuang; Stephan Glatzel; John McL. Bennett; Yingcan Zhu
• Keywords: Soil respiration; Conventional tillage; Soil carbon; Growing season; Soil Quality; Soil Management

No tillage (NT) and spring ridge (SRT) are two common applications of conservation tillage. Although is known to exert major control over soil microbial respiration (SMR), the growing-season SMR response these remains elusive. In order better understand influence practices, this experiment was conducted in an experimental field using NT SRT for 17 years. situ measurements SMR, temperature water content (SWC) were performed. Soil samples collected analyze porosity, biomass (SMB) enzymatic activities. Results show that systems had a significant difference (p 0.05). Despite increasing proportion micro-porosities meso-porosities, macro-porosities 7.37% higher than SRT, which resulted bacteria fungi NT. Owing damaged hypha, disadvantage microbe protection. Inversely, less disturbance unique advantage NT, favor improving macro-pores SWC. Redundancy analyses (RDA) showed positively correlated with macro-pores, SMB Furthermore, Pearson correlation test indicated activities did not have (p>0.05). This study results suggest more conducive carbon sequestration compared cropland. Keywords: no tillage, respiration, biomass, activity DOI: 10.25165/j.ijabe.20201304.5587 Citation: Wang G, Jia H L, Zhuang J, Glatzel S, Bennett J M, Zhu Y C. Growing-season long-term Int Agric & Biol Eng, 2020; 13(4): 143–150.