Long-term biosolids land application influences soil health

Soil health assessments associated with organic amendment applications have primarily focused attention on manure or composts. Yet, quantifying specific changes in soil biosolids land has yet to be determined. Our objectives were evaluate the various indicators, and utilizing Management Assessment Framework (SMAF), quantify indicator scores indices as affected by either increasing inorganic N fertilizer (0 up 112 kg ha−1) 11.2 dry Mg applied every other year over 22 years. Soils sampled 20 cm depth) following years of inputs a dryland wheat-fallow (Triticum aestivum L.) rotation, 11 indicators monitored under SMAF guidelines, scores, analyzed statistically. In general, application rates had little effect indices. Increasing increased C (SOC) potentially mineralizable (PMN). The showed upward trends for pH, SOC, PMN, microbial biomass (MBC) rates; discussing are important these combined provide Indeed, chemical biological indices, leading an improvement overall index. When comparing effect, significantly improved Results indicate that long-term semi-arid, wheat fallow rotations, similar those studied, improve aspects health. These findings suggest may play pivotal role agroecosystem sustainability.