Book of Extended summaries ISDA

International Conference on Reimagining Rainfed Agro-ecosystems: Challenges & Opportunities
during 22-24, December 2022 at ICAR-CRIDA, Hyderabad
Both tillage and nitrogen treatments had significant effect on bulk density and total porosity of
the soil at different depths. Among the tillage treatments, significantly lower mean soil bulk
density was recorded in CA followed by RT and CT in 0-7.5, 7.5-15 and 15-30 soil depth,
respectively. The lower mean soil bulk density by 7.2, 7.1 and 4.2% was recorded in N125 as
compared to N0 at 0-7.5, 7.5-15 and 15-30 cm soil depth, respectively. An opposite relationship
was observed between bulk density and soil total porosity. Significantly higher soil total porosity
was observed in NT followed by RT and CT in different depths studies. The higher soil total
porosity was observed in N125 at 0-7.5, 7.5-15, 15-30 and 30-45 cm soil depth as compared to the
previous N fertilizer levels. The significant increase was to the extent of 10.9, 11.1, 7.2 and 6.0%
at 0-7.5, 7.5-15, 15-30 and 30-45 in N125 as compared to the N0. The overall results were close
conformity with the earlier findings by Blanco Canqui and Ruis, 2018 and Indoria et al., 2017.
Conclusion
The order of performance of tillage practices in improving the soil total carbon, bulk density and
soil total porosity was: CA>RT> CT. While, the order of performance of N fertilizer levels in
improving soil total carbon, bulk density and porosity was: N125>N100>N75>N0. The interactive
effects of CA+N125 were found superiorin improving these soil properties as compared to other
treatment combinations.
References
Blanco-Canqui, H. and Ruis, S. J. 2018. No-tillage and soil physical environment. Geoderma.
326: 164-200.
Indoria, A. K., Srinivasarao, Ch., Sharma, K.L. and Sammi Reddy, K. 2017. Conservation
agriculture–a panacea to improve soil physical health. Current Science.112: 52-61.
T4a-27P -1091
Effect of Various Organic Sources of Nutrients on Growth and Yield of
Tomato
S. V. Uphade, A. K. Gore and D. P. Waskar
Organic Farming Research and Training Centre, Vasantrao Naik Marathwada Krishi Vidyapeeth,
Parbhani, Maharashtra 431401(India).
*ofrtcvnmkvparbhani@gmail.com
Organic farming is gaining importance in recent past due to want of residue free food and soil
health improvement. In context of this there is increasing demand for organic vegetables from
621 | Page Resource conservation and rainfed agriculture