ABSTRACT

Improved soil health is essential to sustain agricultural production. Therefore, understanding the effects of management on soil health is crucial to implement new agricultural practices. This study aimed to assess the effects of long-term tillage systems on biochemical indicators of a Typic Haploxerert soil under winter wheat-soybean-corn rotation in the Mediterranean region of Turkey. The experiment consisted of two conventional (CT), three reduced (RT), no-tillage (NT), and a strategic tillage practice. The biochemical indicators were total nitrogen (TN), total carbon (TC), soil organic carbon (SOC), microbial biomass carbon (MBC), potential mineralizable nitrogen (PMN), microbial quotient (qM), beta-glucosidase enzyme activity (BGA), and carbon sequestration (Cs) potential. The SOC significantly decreased with the increased tillage intensity, while the tillage had a little effect on PMN, with its highest concentration (78.2 mg kg⁻¹) occurring in the NT. The qM was the only indicator found to be higher under CT than RT and similar to the NT. The BGA peaked in NT which was 460.2 and 536.3% higher than that of the CT. The results showed that SOC, MBC, PMN, BGA and Cs were enhanced with the NT and RT systems which favor sustainability of agricultural production.

摘要

改善土壤健康对于维持农业生产至关重要。因此，了解管理对土壤健康的影响对于实施新的农业实践至关重要。本研究旨在评估长期耕作系统对土耳其地中海地区冬小麦-大豆-玉米轮作条件下典型 Haploxerert 土壤生化指标的影响。该实验包括两个常规 (CT)、三个减量 (RT)、免耕 (NT) 和策略性耕作实践。生化指标为全氮（TN）、总碳（TC）、土壤有机碳（SOC）、微生物生物量碳（MBC）、潜在矿化氮（PMN）、微生物商（qM）、β-葡萄糖苷酶活性（BGA） ) 和碳封存 (Cs) 潜力。SOC随着耕作强度的增加而显着下降，^-1 ) 发生在新台币。qM 是唯一在 CT 下发现高于 RT 且与 NT 相似的指标。BGA在NT达到峰值，分别比CT高460.2%和536.3%。结果表明，有利于农业生产可持续性的 NT 和 RT 系统增强了 SOC、MBC、PMN、BGA 和 Cs。