Book of Extended summaries ISDA

International Conference on Reimagining Rainfed Agro-ecosystems: Challenges &
Opportunities during 22-24, December 2022 at ICAR-CRIDA, Hyderabad
The data in respect of various potassium fractions in soil indicate that the significantly higher
values of water-soluble K, exchangeable K, non-exchangeable K, total K and lattice K was
recorded with the application of 100% NP + 10kg K(inorganic)+20kg K through gliricidia
(T4).
Soil quality
The data presented in Table indicate that the higher soil quality index (3.52) was recorded
with the application of 100% NP + 10kg K(inorganic)+20kg K through gliricidia(T4).
Conclusion
For sustaining soil fertility, cotton productivity and obtaining higher monetary returns,
application of 50% recommended N (30 kg) + 30 kg P2O5 + 10 kg K2O ha -1 through
inorganics and 20 kg K 2O ha -1 through gliricidia green leaf manuring (4 t ha -1 ) at 30 DAS is
recommended as an Integrated Plant Nutrient Supply System under dryland condition.
References
Kumar Balwindar, Gupta, R. K., and Bhandari, A. L. 2008. Soil fertility changes after longterm
application of organic manures and crop residues under rice-wheat system. J.
Indian Soc. Soil Sci. 56(1): 80-85.
Satpute Usha, V., Gabhane, V. V., Jawale, S. A., and Nagdeve, M. B. 2019.Effect of potash
management through conjoint use of Gliricidia green leaf manure and mineral fertilizer
on yield and nutrient uptake by rainfed cotton in Vertisols. Int. J. Chem. Stud. 7(3):
4564-4567.
T4a-05R-1244
Conjunctive use of Zeolite and Urea to Minimize Nitrogen Loss and
Enhance Nutrient Availability and Maize Productivity in Alfisols
V. Girijaveni 1 , K. Sammi Reddy 1 , J. V. N. S. Prasad 1 , Ch. Srinivasarao 2 , Sumanta
Kundu 1 , Pushpanajali 1 and K. Srinivas 1
1 Central Research Institute for Dryland Agriculture, Hyderabad 500 059, India
2 National Academy of Agricultural Research Management, Hyderabad – 500030, India
Natural zeolites consist of three-dimensional framework of silica and aluminum tetrahedra
and are hydrated aluminosilicates with honeycomb structure, which is generally very open,
containing channels and cavities. These channels and cavities are filled with cations and
water molecules (Karapinar, 2009). Zeolite is a group of natural minerals with physical and
physicochemical properties that can be utilized in various areas such as construction and
agriculture. Research revealed that these naturally occurring zeolites are capable of absorbing
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