TY - Acta Agronomica Sinica A1 - Hui-Hui TANG,Yan-Li XU,Qing-Yan WANG,Zheng-Bo MA,Guang-Yan LI,Hui DONG,Zhi-Qiang DONG T1 - Increasing spring maize yield by basic application of PASP chelating nitrogen fertilizer in northeast China Y1 - 2019-03-12 JF - Acta Agronomica Sinica JO - Acta Agronomica Sinica SP - 431 EP - 442 VL - 45 IS - 3 UR - https://zwxb.chinacrops.org N1 - 10.3724/SP.J.1006.2019.83056 ER -