Book of Extended summaries ISDA

International Conference on Reimagining Rainfed Agro-ecosystems: Challenges & Opportunities
during 22-24, December 2022 at ICAR-CRIDA, Hyderabad
Due to want of improvement in soil health and production of residue free food, organic sources
of nutrients are intentionally being used by farmers in recent past. Application of organic
manures has direct effect on the crop yield and properties of soil. Keeping this in view, a field
experiment was conducted to evaluate locally available organic sources of nutrients in terms of
yield of soybean crop (Aheret al. 2019).
Methodology
An experiment was conducted at Organic Farming Research and Training Centre, Vasantrao
Naik Marathwada Krishi Vidyapeeth Parbhani, during kharif 2018-19. The experiment design
was RBD for thirteen treatments with three replications with gross plot size of 7.2 m x 6.0 mand
net plot size of 6.3 m x 5.4 m and with 45 x 05 cm spacing.
Results
Soybean yield was determined by the development of the plant from the beginning of sowing to
the harvest period, where the role of fertilization was of great importance. Application of
different organic and chemical fertilizers would affect one or all of its yield components. Among
nutrient source applications, the chemical fertilizer as RDF with FYMthe treatment, T13 i.e. RDF
+ FYM @ 5 t ha -1 recorded the highest soybean yield which was found significantly superior
over rest of the treatments. However, use of organic sources of nutrient affected soybean yield
and data revealed that, the effect of various organic sources on soybean yield was found to be
significant. Among various organic sources of nutrients, the treatment T2 i.e.100 % RDN through
Vermi compost recorded highest soybean yield (1546 Kg ha -1. Similar trend was observed in
GMR, NMR and B:C ratio i.e. T13 i.e. RDF + FYM 5 t ha -1 recorded the highest GMR, NMR and
B:C ratio. However, among various sources of nutrients the treatmentT2 i.e. 100 % RDN through
Vermicompost recorded the higher seed yield of soybean with higher GMR, NMR and B:C ratio
than rest of the treatments. Similar trend was observed and reported by Channabasavana et al.,
2001. The treatments had RWUE of more than one except the control plotsand it was found
highest in treatment T13 followed by T2. The positive effects of organic manure application on
performance of soybean and other crops in black soils are well documented by Aher et al. 2015.
668 | Page Resource conservation and rainfed agriculture