This study investigates a commercial granular organomineral fertilizer (GOF) produced by physically mixing landfill paper and cellulose industry waste composted over a long period with monoammonium phosphate (MAP), focusing on its morphological properties, and phosphate release into the water. The organic base used in the GOF composition is rich in humic and fulvic acids due to its long-term composting, rebalances the soil's organic matter, and eliminates a critical environmental liability. No studies have involved long-term lignocellulosic waste composting as the organic base of organomineral fertilizers. Most GOF and MAP granules range from 2 to 4 mm in size, with rough and macroporous surfaces observed through scanning electron microscopy. The specific surface area values of fertilizers are low compared to other fertilizers with different organic matrices. However, 2–4 mm granules exhibit similar values, indicating uniformity of granules. Infrared spectroscopy reveals bands from mineral and organic bases, with possible clay additives confirmed by the silicon detected in Energy Dispersive Spectroscopy analysis. Thermogravimetric curves exhibit improved thermal stability for GOF over the composted organic base, with a 31 °C increase in the second decomposition stage and delayed completion of the subsequent stages. However, this did not significantly alter the Tonset of the ammonium phosphate decomposition, as GOF presented a similar thermal behavior to MAP. GOF and MAP exhibit similar kinetic profiles, with rapid phosphorus release in the first 4 hours, reaching about 77 % of the available phosphorus. GOF shows an increase in specific surface area 29 times after 240 hours of contact with water, facilitating phosphorus release from the commercial mixture. MAP and GOF exhibit a release rate exceeding 84 %, indicating rapid phosphate availability. These values are comparable to those of other organomineral fertilizers. The results demonstrate that the GOF performs similarly to MAP, with lower phosphorus dosages, rebalance of soil organic matter, and increased nutrient application efficiency.

中文翻译：

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通过磷酸一铵与纸浆和造纸工业废料的混合物造粒生产的商业有机矿物肥料，堆肥后


本研究调查了一种商业颗粒有机矿物肥料 （GOF），该肥料是通过将垃圾填埋场纸和纤维素工业废料与磷酸一铵 （MAP） 长期物理混合而生产的，重点关注其形态特性和磷酸盐释放到水中。GOF 组合物中使用的有机碱由于其长期堆肥而富含腐殖酸和黄腐酸，重新平衡了土壤的有机质，并消除了关键的环境责任。没有研究涉及将长期木质纤维素废物堆肥作为有机矿物肥料的有机基础。大多数 GOF 和 MAP 颗粒的大小为 2 至 4 毫米，通过扫描电子显微镜观察到粗糙和大孔表面。与具有不同有机基质的其他肥料相比，肥料的比表面积值较低。然而，2-4 mm 颗粒表现出相似的值，表明颗粒的均匀性。红外光谱揭示了矿物和有机碱的条带，能量色散光谱分析中检测到的硅证实了可能的粘土添加剂。热重曲线表明，GOF 在堆肥有机碱上的热稳定性更高，在第二分解阶段升高了 31 °C，而后续阶段的完成则延迟。然而，这并没有显着改变磷酸铵分解的 Tonset，因为 GOF 表现出与 MAP 相似的热行为。GOF 和 MAP 表现出相似的动力学特征，在前 4 小时内磷快速释放，达到有效磷的 77% 左右。与水接触 240 小时后，GOF 的比表面积增加了 29 倍，有利于磷从商业混合物中释放出来。 MAP 和 GOF 的释放率超过 84%，表明磷酸盐可用性高。这些值与其他有机矿物肥料的值相当。结果表明，GOF 的性能与 MAP 相似，磷剂量较低，土壤有机质再平衡，养分施用效率更高。