Abstract:Nowadays, due to pollution in world due to due to excessive consumption of mineral fertilizers, the limiting or minimizing their use has become a major strategy for environmentalists. The research work objective was to reduce quantities of mineral fertilizers, especially NPK fertilizers, by gradually replacing nitrogen fertilizers with fulvic acid and biochar. Four different combinations of mineral fertilizers were used as soil application (NPK1: 120, 160 and 143, NPK2: 180, 310 and 190, NPK3: 240, 475 and 240… Show more
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