Book of Extended summaries ISDA

International Conference on Reimagining Rainfed Agro-ecosystems: Challenges & Opportunities
during 22-24, December 2022 at ICAR-CRIDA, Hyderabad
design with eight treatments and three replications. There were eight treatments viz, T1 is RDF
(No spray), T2 is RDF + 1% urea spraying, T3 is RDF + 1% DAP spraying, T4 is RDF + 1%
19:19:19 (N,P,K) spraying, T5 is RDF + 1% 00:52:34 (N,P,K) spraying, T6 is RDF + 13:00:45
(N,P,K) spraying, T7 is RDF + 1% 13:40:13 (N,P,K) spraying and T8- control (no RDF, no
spray). Foliar application of fertilizers (1%) is done at the flowering and pod development stage.
The treatments were allotted randomly in each replication. Therecommendeddoseoffertilizer
(25:50:25 NPK kg ha -1 ) was applied at the time of sowing through Urea, SSP, and MOP. The
recommended cultural practices and plant protectionmeasureswereproperlytakenfrom
timetotime.The plants were used for measuring phenological characteristics like plant height, the
number of branches plant and number of nodule plants, the seed index by taking 100 seeds, and
weight for working out the seed index on electric balance.Protein content was determined by
multiplying the percent of N in the grain sample by a constant factor of 6.25 as described by
A.O.A.C. (1975).The statistical method of analysis of variance was used for analyzing the data
and the “F” test of significance was used for testing the null hypothesis to determine whether the
observed treatment effects were real and discernible from chance effects.
Results
Data in respect of plant height and number of branches plant -1 influenced by different treatment.
The plant height (cm)differed significantly due to different foliar applications of fertilizers in
gram, T4 - RDF + 1% 19:19:19 NPK spraying at flowering and pod development recorded
significantly highest plant height (59.73) cm which was found at par with T2 - RDF + 1% Urea
spraying at flowering and pod development (58.77) cm however it was significantly higher than
all other treatments. Significantly lowest (42.87) cm plant height was recorded with T8 - Control
(No RDF, No spray). In the present study, the data revealed an increase in plant height through
foliar application of 19:19:19and urea may be attributed to increasing the N status in the plant
system.
The number of branches plant -1 of gram was significantly influenced due to different foliar
fertilizers application, T4 - RDF + 1% 19:19:19 NPK spraying at flowering and pod development
recorded a significantly higher number of branches (24.20) which was found at par with T5 -
RDF + 00:52:34 NPK spraying at flowering and pod development (23.40) however, it was
significantly higher than all other treatments. significantly the lowest number of branches (13.19)
recorded with T8 - Control (No RDF, No spray). The maximum number of branches might be
due to the increased number of nodes and the development of plants due to the treatment effect
and increase in the availability of nitrogen which encouraged the carbohydrate synthesis in
grams as there was the availability of applied nitrogen. Data on the number of nodule plant -1 as
Sustainable soil management for resilient rainfed agro-ecosystem: conservation agriculture, organic farming,
INM, soil-microorganisms-plant interactions
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