Vol. 10, Issue 8 (2021)

Author(s):
Suresh Kumawat, SK Kharia, SR Yadav and RK Jakhar

Abstract:
A field experiment was started in 2008 under All India Co-ordinated Research Project to study the ‘‘Effect of Long-Term Application of Organic and Inorganics by using Soil Test Crop Response on Soil Aggregate Fractions in Western Rajasthan’’. By using General recommended dose, Target yield 15 q ha^-1, Target yield 15 q ha^-1 with IPNS, Target yield 20 q ha^-1 and Target yield 20 q ha^-1 with IPNS. Studying the dynamics of soil organic carbon (SOC) is important for understanding the carbon stabilization into different pools. Thus, a 9-year old experiment was used to assess the impact of soil test crop response system with addition of organics and grades of fertilization on oxidizable carbon and aggregate fractions in western Rajasthan of India. The water stable aggregates in the experimental trail soils ranged from 3.88 to 7.96% under different treatments. Geometric mean diameter also exhibited ranged from 0.725 to 0.795 mm in 0-7.5 cm soil depth to 7.5-15 cm soil depth. Aggregate ratio (AR) showed, with the highest values in soils under IPNS treatment (0.112 and 0.090 in 0-7.5 cm soil depth and 7.5-15 cm soil depth).