Communications in Soil Science and Plant Analysis · 2010 · 62 citations · 17 references
EngineeringSoil Organic MatterAgricultural EconomicsSoil Organic CarbonLand DegradationSoil Nutrient StatusSoil BiochemistryOrganic GeochemistryCentral IndiaSoil Nutrient ManagementPublic HealthSoil FertilitySoil Fertility ManagementBiogeochemistrySoybean–durum WheatMicronutrientsImp PlotsNutrient AnalysisSoil Carbon CycleEnvironmental EngineeringSoil ChemistrySoil Carbon SequestrationNutrient Management
Soil organic carbon (SOC), macro- and micronutrient status, and nitrogen (N) mineralization were studied in a soil profile managed with organic (OMP), chemical (CMP), and integrated (IMP) management practices for 3 years (2004–7) under a soybean–durum wheat cropping sequence. The most significant buildup of SOC and nutrients was in OMP, followed by IMP and then CMP. The OMP had 15.8 and 7.3% more SOC content than the CMP and IMP, respectively. The concentration of nitrate N was significantly greater in the OMP and IMP than in the CMP. The amount of ammonium N was less than nitrate N in OMP and IMP, indicating the high nitrification ability of the soil. A buildup of the micronutrient cation content was also noticed in the surface layer in the OMP and IMP plots. The OMP and IMP had a significantly greater mineralization rate of N than did CMP, and it was greatest in the top 0- to 15-cm soil layer.
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