Optimized Border Irrigation Improved Nitrogen Accumulation, Translocation of Winter Wheat and Reduce Soil Nitrate Nitrogen Residue

We aimed to optimize field border length in the Huang-Huai-Hai Plain of China (HPC) reduce soil inorganic nitrogen residues and increase absorption utilization by wheat plants using a traditional irrigation system. In two-year experiment (2017–2019) conducted HPC, four lengths were tested: 20 m (L20), 30 (L30), 40 (L40), 50 (L50). Supplementary was implemented during jointing anthesis stages, control fields received treatment without irrigation. The results showed that, compared with other lengths, L40 significantly increased transport stems leaves. addition, had highest rate grain accumulation after anthesis. risk nitrate leaching deep layers increasing length; however, improved plants’ capacity absorb nitrogen, residue lower than that lengths. Therefore, yield fertilizer under higher those considered as best length.