Previous studies have indicated that soil properties and texture could lead to differences in N mineralization from applied organic materials. We conducted a 100‐day (d) incubation study to measure net N mineralized from feather meal (14–0.1–0.1) and pellet mix (10–1–6) at 150 mg N kg soil ⁻¹ (approximately 72 kg N ha⁻¹) incorporated into four common southeastern soils: Cecil 1, Cecil 2, Greenville, and Tifton. A second 23‐d study was conducted to determine pH dynamics and the potential for ammonia volatilization from the same soils and materials. There were no differences in net N mineralized from pellet mix among soils, but net N mineralized from feather meal was lower in Greenville soil, which had the greatest clay content. Analysis of the first‐order dynamics of N mineralization indicated that even in soils that differ in clay content it may be possible to describe N mineralization from feather meal and pellet mix with a single model. Our results also suggest that the effect of pH on the N mineralization dynamics of these fertilizers may be more important than the effect of clay content. No ammonia loss was observed regardless of soil texture, soil pH buffering capacity, or initial soil pH.

中文翻译：

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土壤质地对东南四种常见土壤有机肥氮矿化的影响

先前的研究表明，土壤性质和质地可能导致所施用有机材料的氮矿化差异。我们进行了100天（d）孵化研究，以测量羽毛粉（14–0.1–0.1）和颗粒混合物（10–1–6）在150 mg N kg土壤^-1（约72 kg N ha ^-1）并结合到东南四种常见土壤中：塞西尔1，塞西尔2，格林维尔和蒂夫顿。进行了第二项为期23天的研究，以确定pH值动态变化以及相同土壤和材料中氨气挥发的可能性。土壤中颗粒混合矿化的净氮没有差异，但在格林维尔土壤中，羽毛粉矿化的净氮较低，粘土含量最大。对氮矿化的一级动力学分析表明，即使在粘土含量不同的土壤中，也可以用一个模型描述羽毛粉和颗粒混合物中的氮矿化。我们的结果还表明，pH对这些肥料的氮矿化动力学的影响可能比粘土含量的影响更为重要。无论土壤质地如何，均未观察到氨气损失，