Book of Extended summaries ISDA

International Conference on Reimagining Rainfed Agro-ecosystems: Challenges &
Opportunities during 22-24, December 2022 at ICAR-CRIDA, Hyderabad
Results
On the basis of four years pooled mean, plant height, grain and fodder yield was significantly
affected by different levels of nitrogen as shown in table. Significantly highest plant height
and fodder yield were recorded with application of 60 kg N/ha as compared to control, 20
and 40 kg N/ha, while grain yield was recorded significantly highest with application of 60
kg N/ha as compared to control and 20 kg N/ha, but it remained at par with 40kg N/ha.
Among phosphorus levels, grain and fodder yield of sorghum was significantly influenced
due to different levels of phosphorus and recorded significantly highest grain and fodder
yield under application of 40 kg P2O5/ha as compared to control, but it remained at par with
application of 20 kg P 2O 5/ha. Similarly maximum net returns of Rs. 25389/ha and B: C ratio
of 1.93 were recorded under application of 60 kg N/ha followed by Rs. 23363/ha and B: C
ratio of 1.87 under application of 40 kg N/ha. Whereas with the application of phosphorus,
maximum net returns of Rs. 21563/ha and B: C ratio of 1.81 were recorded with application
of 20 kg P2O5/ha.
Growth, yield and economics of sorghum as influenced by nitrogen and phosphorus
Treatments
Nitrogen (kg/ha)
Phosphorus (kg/ha)
Conclusion
levels under conserved soil moisture (Pooled mean of 4 years)
On the basis of four years pooled results, it can conclude that higher grain and fodder yield
and net returns from sorghum (Gundri Local) can be secured by application of 40 kg N and
20 kg P 2O 5/ha in medium black clayey soil under conserved soil moisture in Ghed area of
Gujarat.
Plant
height
(cm)
Grain
yield
(kg/ha)
Fodder
yield
(kg/ha)
Net
return
( /ha)
B:C
ratio
Control 77.3 774 1746 14344 1.56
20 83.2 889 2002 19623 1.74
40 89.6 972 2190 23363 1.87
60 96.8 1020 2298 25389 1.93
SEm+ 1.1 18 37
CD (P=0.05) 3.2 50 104
Control 86.0 872 1968 18995 1.73
20 86.2 932 2099 21563 1.81
40 88.1 937 2110 21468 1.80
SEm+ 1.0 15 34
CD (P=0.05) NS 50 104
569 | Page Resource conservation and rainfed agriculture