DB12/T1043-2021肥力指标产量水平推荐施肥量折纯养分用量肥力等级肥料类型mg/kgkg/hmkg/hmkg/hmN1307500500P20560K016026-12-14或相近配N143-156高速效磷40900010500方,氮肥中应有30%550600P2O566-72速效钾150释放期为50天60K077-84N156-1691050012000天缓控释氮素)600650P20572-78K084-91N16912000650P20578K0913
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