摘要
Pattern and mitigation potential of crop-specific fertilizer-N losses were assessed.China showed high fertilizer-N losses due to high N application rates and low SOC.MAP,SOC,and soil pH are key parameters affecting fertilizer-N losses.At a given application rate,soils with higher SOC have lower fertilizer-N losses.Optimal N rate combined with SOC improvement could cut 34.8%-59.6%of N losses.
基金
supported by the National Natural Science Foundation of China(41907069,42007088,and 42377338)
the Basic Research Program of Jiangsu Province(BK20230076)
the Jiangsu Agriculture Science and Technology Innovation Fund(CX(23)1019)
the Key Research and Development Project of Jiangsu Province(BE2021378)
the China Agriculture Research System(CARS-10-Sweetpotato).
