Nutrient cycling practices and changes in soil properties in the crop-livestock

Three experimental treatments: (a) Tillage  practices: (i) Immediate tillage,(ii) late tillage (tillage was done two weeks after handspreading of amendments), and (iii) no till; (b) Soil amendments: (i) sheep dung-plus-urine, (ii) sheep dung, (iii) millet stover, (iv) millet stover ashes; and  (c) Mineral N fertilizer: (i) 0, (ii) 15, (iii) 30 kg ha−1.
https://doi.org/10.1023/A:1015199114833