Book of Extended summaries ISDA

International Conference on Reimagining Rainfed Agro-ecosystems: Challenges &
Opportunities during 22-24, December 2022 at ICAR-CRIDA, Hyderabad
small farm holdings with average operational land holding size of 0.7 ha which is further
dwindling owing to fragmentation because of expanding family size and diversion of agricultural
land to other uses. The predominant rainfed cropping system in the region is maize-wheat and
being cereal-cereal system, it is threatening the soil fertility and yield sustainability apart from
adversely affecting the economic returns. Growing of large number of crops is practiced in
rainfed lands to reduce the risk factor of crop failures due to drought or irregular rains. Moreover,
diversification of crops can soften impacts on environmental resources and is considered to be
more remunerative, better input use efficient and less risk prone. Growing of different rabi crops
in maize-based cropping system can maintain soil fertility and sustain crop productivity.
Methodology
A field experiment was carried out at research farm of Advanced Centre for rainfed agriculture,
Rakh Dhiansar, Sher-e-Kashmir University of Agricultural Sciences and Technology of Jammu
during 2020-21.An experiment comprises of nine maize based cropping systems viz: Maize-
Wheat, Maize- Chickpea, Maize- Lentil, Maize- Gobhisarson, Maize- Linseed, Maize-Barley,
Maize-Taramira, Maize-Oat, Maize-Field pea were tested in randomized block design under
sandy loam soil having slightly acidic in nature, well drained low in carbon, (0.22), low in
available nitrogen (162 kgha -1 ) and potassium (102 kgha -1 ) and medium in available phosphorous
(14.4 kg ha -1 ). All the crops in different cropping systems were raised in accordance with the
recommended package of practices and technical programme.
Results
Evaluation of different maize-based cropping systems during rabi 2020-21under rainfed
conditions.
Treatment
Grain
yield (kg
ha -1 )
WEY
(kg ha -1 )
COC
(Rs ha -1 )
Net
Returns
(Rs. ha -1 )
B:C
Ratio
RWUE
(kg ha -1 -
mm)
T1 Maize-Wheat 2618 2618 23200 44528 2.92 23.42
T2 Maize- Chickpea 668 2029 18800 21280 2.13 18.15
T3 Maize- Lentil 740 1896 16700 20740 2.24 16.96
T4 Maize-Gobhisarson 1003 2362 17000 29640 2.74 21.12
T5 Maize- Linseed 587 1783 16200 19020 2.17 15.95
T6 Maize-Barley 2490 2143 22000 20330 1.92 19.17
T7 Maize-Taramira 602 1676 16000 17110 2.07 15.00
T8 Maize-Oat 28500 1587 15800 15550 1.98 14.20
T9 Maize-Field pea 710 2157 18600 24000 2.29 19.29
CD (5%) - 228.7 - - - -
Among the different crops sown under different cropping systems during rabi 2020-21,
wheat crop reported significantly highest wheat equivalent yield to the tune of 2618 kgha -1
188 | Page
Ecosystem based approaches for climate change adaptation, ecosystem services, integrated farming system models,
Land degradation neutrality