Nitrogen Transformations in Broiler Litter-Amended Soils

Table 4

Regression equations (for curves in Figures 1–5) for organic N mineralized in selected Alabama soils.

Soil series	Treatment specified^†
	Soil alone	Soil + broiler litter 1	Soil + broiler litter 2
Appling	Nm=85.3(1−e^−0.1320𝑡)	Nm=252(1−e^−0.1730𝑡)	Nm=283(1−e^−0.0910𝑡)
Cecil	Nm=120(1−e^−0.0405𝑡)	Nm=251(1−e^−0.0494𝑡)	Nm=331(1−e^−0.0315𝑡)
Colbert	Nm=76.7(1−e^−0.406𝑡)	Nm=360(1−e^−0.0405𝑡)	Nm=369(1−e^−0.0406𝑡)
Decatur	Nm=86.9(1−e^−0.0627𝑡)	Nm=356(1−e^−0.063𝑡)	Nm=405(1−e^−0.0619𝑡)
Dothan	Nm=66.9(1−e^−0.0865𝑡)	Nm=131(1−e^−0.0877𝑡)	Nm=167(1−e^−0.0854𝑡)
Hartsells	Nm=47.9(1−e^−0.0620𝑡)	Nm=208(1−e^−0.0614𝑡)	Nm=294(1−e^−0.0625𝑡)
Linker	Nm=102(1−e^−0.0801𝑡)	Nm=195(1−e^−0.0819𝑡)	Nm=209(1−e^−0.0783𝑡)
Maytag	Nm=82.8(1−e^−0.0793𝑡)	Nm=221(1−e^−0.0764𝑡)	Nm=217(1−e^−0.0821𝑡)
Sucarnoochee	Nm=123(1−e^−0.0516𝑡)	Nm=569(1−e^−0.0230𝑡)	Nm=286(1−e^−0.0802𝑡)
Troup	Nm=59.7(1−e^−0.0640𝑡)	Nm=189(1−e^−0.0571𝑡)	Nm=185(1−e^−0.0709𝑡)

^†N_m = organic N mineralized (mg kg⁻¹) at specific time (𝑡).