Compared to conventional tillage (CT) system (e.g. moldboard plowing (Moldboard-CT) and chisel plowing (Chisel-CT)) adoption rate of conservation tillage systems (e.g. no-till (NT) and strip-till (ST)) in surface- irrigated farms is considerably low. A three-year field study was conducted to evaluate corn (Zea mays L) productivity in four tillage systems ranging in intensity of soil disturbance (i.e. Moldboard-CT, Chisel-CT, ST, and NT) in a furrow-irrigated field. Averaged over three years, corn grain yield was higher in Moldboard-CT (2.9 Mg ha⁻¹) and NT (12.1 Mg ha⁻¹) systems than yields in Chisel-CT (10.9 Mg ha⁻¹) and ST (10.3 Mg ha⁻¹). Tillage system did not affect soil pH, EC, total organic carbon (TOC), and dissolved organic carbon (DOC) in 0–15 soil depths under Chisel-CT, ST, and NT compared with Moldboard-CT. No significant differences were found between tillage systems in terms of saturated hydraulic conductivity (K_fs) and bulk density, yet soil available water capacity (AWC) and the wet aggregate stability were positively affected by adopting reduced tillage. Economic analysis showed that Return on Investment (ROI) in NT was greater (0.93) than that in CT (0.88), although net return from Moldboard-CT was $44 ha⁻¹ greater than that of NT. The small difference in net return between Moldboard-CT and NT, along with the positive trend observed in soil properties as a result of shifting to NT, indicates the potential of NT to improve corn production sustainability in surface-irrigated agroecosystems in mid- and long-term.

与传统耕作 (CT) 系统（例如铧式耕作 (Moldboard-CT) 和凿式耕作 (Chisel-CT)）相比，保护性耕作系统（例如免耕 (NT) 和条耕 (ST)）在地表中的采用率- 灌溉农场相当低。进行了一项为期三年的田间研究，以评估犁沟灌溉田地中土壤扰动强度（即 Moldboard-CT、Chisel-CT、ST 和 NT）的四种耕作系统中的玉米（ Zea mays L）生产力。三年内平均而言，Moldboard-CT (2.9 Mg ha ^-1 ) 和 NT (12.1 Mg ha ^-1 ) 系统的玉米产量高于 Chisel-CT (10.9 Mg ha ^-1 ) 和 ST (10.3 Mg ha ) 系统的产量^-1）。与 Moldboard-CT 相比，在 Chisel-CT、ST 和 NT 下，耕作系统对 0-15 个土壤深度的土壤 pH、EC、总有机碳 (TOC) 和溶解有机碳 (DOC) 没有影响。在饱和导水率 ( K _fs ) 和容重方面未发现耕作系统之间的显着差异，但采用减少耕作对土壤有效水分容量 (AWC) 和湿骨料稳定性有积极影响。经济分析表明，NT 的投资回报率 (ROI) (0.93) 高于 CT (0.88)，尽管 Moldboard-CT 的净回报为 $44 ha ^-1大于 NT。Moldboard-CT 和 NT 之间净回报的微小差异，以及由于转向 NT 而观察到的土壤性质的积极趋势，表明 NT 在中长期提高地表灌溉农业生态系统玉米生产可持续性的潜力-学期。