Increasing Soil Organic Carbon for Higher Wheat Yield and Nitrogen Productivity

Improving soil organic carbon (SOC) has been considered as a “win-win way” for ensuring high crop productivity and mitigating chemical N input. SOC can achieve higher wheat yield simultaneously improve nitrogen (N) (defined kg grain produced per total input from both indigenous applied N). Two treatments were tested improving level. The manure treatment involved applying 6 successive years, the EM adding peat vermiculite once, combined with optimized in-season management. performance of these two systems compared traditional farming system (Control, where only straw was returned each season). fertilizer under all three by management increased 90.1% 48.1% Manure treatments, respectively, Control. average 9.1 9.2 Mg ha–1, across which 18.8% 19.7% higher, than that Control (7.7 ha–1). application rates 139 146 24.9% 21.1% lower those treatment, respectively. 15.1% 14.9% treatment. attributed to improved aboveground dry matter uptake wheat, optimal supply root zone. stem number weight seen in individual plants increasing resulted larger spikes grains at harvest. Our results determined low productive stems spike growth.