Book of Extended summaries ISDA

International Conference on Reimagining Rainfed Agro-ecosystems: Challenges & Opportunities
during 22-24, December 2022 at ICAR-CRIDA, Hyderabad
Effect of treatments on soil properties:
a) FC, AWC, and PWP: The highest field capacity moisture content was observed in T3
(26.60%), followed by T6 (25.73%) and T4 (25.44%), and the lowest was in control
T1(24.28) at CD value 0.366 at 0.05 level of significance. However, moisture content at
FC in T4 and T6 was non-significant. Similarly, the highest available water content was
found in T3 (20.27%), followed by T6(19.03%) and T4 (18.83%), and the lowest was in
control T1(17.83%) with CD value 0.530 at a 0.05 level of significance. However,
moisture content at AWC in T4 and T6 was statistically at par. The moisture content at
PWP was at par for all the treatments.
b) Bulk Density: The lowest bulk density was recorded in T3 (1.21 Mgm -3 ), followed by T6
(1.25 Mgm -3 ) and T4(1.27 Mgm -3 ), and the highest was in control T1(1.35 Mgm -3 ) with
CD value 0.02 at 0.05 level of significance. However, T4 and T6 were found to be at par.
c) Soil reaction: The highest pH was recorded in T3 (4.6), followed by T6 (4.54), and the
lowest was in T2 (4.41) with CD 0.13 at 0.05 level of significance.
d) Oxidizable Organic Carbon: The oxidizable organic carbon was found to be highest in T3
(8.93 g kg -1 ), followed by T6(8.57 g kg -1 ), and the lowest was in control T1(7.30 g kg -1 )
with CD value 0.14 at 0.05 level of significance
e) Available N: The highest available N was found in T3(433.34 kg ha -1 ), followed by T4
(426.50 kg ha -1 ), T6 (421.40 kg ha -1 ), and the lowest was in the control T1 (296.97 kg ha -
1 ) with CD value 8.17 at 0.05 level of significance. T4 and T6 were statistically at par.
f) Available P2O5: The highest available P2O5 was found in T3 (26.37 kg ha -1 ), followed by
T4 (24.98 kg ha -1 ), T6 (24.20 kg ha -1 ), and the lowest was in control T1 (16.70 kg ha -1 )
with CD value 0.91 at 0.05 level of significance. T4 and T6 were statistically at par.
Effect of Treatments on Soil Microbial Biomass Carbon (MBC): The highest level of MBC
was restored in T3(243.29 mg kg -1 ), followed by T4(228.62 mg kg -1 ), T6 (227.51 mg kg -1 ) and the
lowest was recorded in T1(145.15 mg kg -1 ) with CD value 14.18 at 0.05 level of significance. T4
and T6 were found to be statistically at par. A perusal of soil properties indicates the positive
effect of Integrated Nutrient Management (INM) on soil health compared to sole organic or
chemical-intensive farming.
Carbon dioxide sequestration: CO2 sequestration of the surface soil was found to be highest in
T3 and the lowest in T1
Sustainable soil management for resilient rainfed agro-ecosystem: conservation agriculture, organic farming,
INM, soil-microorganisms-plant interactions
515 | Page