Book of Extended summaries ISDA

International Conference on Reimagining Rainfed Agro-ecosystems: Challenges &
Opportunities during 22-24, December 2022 at ICAR-CRIDA, Hyderabad
electrical light trap. There are several models and designs of solar light traps available in the
markets that do not depend on any other source like electricity, fuel, wind power, or mechanical
power. This device operates automatically i.e. turns on at 6 pm and turns off before sunrise i.e.
6 am. Most of the damage-causing insects are active during this time. Installing one light trap
in an acre area attracts at least more than 1000 adult pests for a day. Nocturnal insects are often
attracted to light sources that emit large amounts of UV radiation and devices that exploit this
behavior. Thus, solar light trap provides a scientific basis for ecological control of pests in crop
production reducing the volume of pesticides and resulting in the protection of the
agroecological environment.
T6-P47-1560
Impact of Residual Soil Moisture on Yields and Profitability of Rainfed
Cropping Sequences
M.L. Jadav*, Narendra Kumawat, D.V. Bhagat, S.K. Choudhary, K.S. Bangar and
Bharat Singh
All India Coordinated Research Project for Dryland Farming, College of Agriculture (RVSKVV)
Indore – 452 001, Madhya Pradesh, India
*mjadavujn@gmail.com
In agriculture, the availability of soil moisture determines the success of crop production
because the growth and productivity of crops highly depend on sufficient moisture. Residual
soil moisture can play important role in rabi crops. The medium to deep vertisols in the Malwa
region can sustain sequential cropping with the short duration crops for about 220 days during
the normal monsoon season. If heavy rainfall occurred, Kharif crops are badly affected but rabi
crop production can compensate it, because of residual moisture content in rainfed conditions.
Lack of adequate seed-zone moisture is a major problem in the timely sowing of rabi crops
after kharif in rainfed areas.
Methodology
Field experiments were conducted during 2019-20 and 2020-21 at the AICRP for Dryland
Agriculture, College of Agriculture (RVSKVV), Indore, Madhya Pradesh, India to find out the
effect of residual soil moisture on rainfed cropping sequences in vertisols. Nine cropping
sequences including soybean/maize/black gram-based cropping systems, viz., soybeanchickpea,
soybean-chickpea (kabuli) soybean-safflower, maize-chickpea, maize-chickpea
(kabuli), maize-safflower, blackgram-chickpea, blackgram-chickpea (kabuli) and blackgramsafflower
were tested in randomized block design with 5 replications. The soil moisture content
(%) was determined by gravimetric method from two depths viz., topsoil (0-15 cm) and subsoil
(15-30 cm) at 20, 40, 60, and 80 DAS and at harvest. This study was conducted to evaluate the
effect of residual soil moisture on yield and monetary return in rainfed cropping sequences.
899 | Page Institutional and policy innovations for accelerated and enhanced impacts