Vol. 12, Special Issue 10 (2023)

Author(s):
Vighnesh, Ramachandra C, Seenappa C, Gangadhar Eswar Rao G, Subbarayappa CT and Nagaraju K

Abstract:
The cultivated groundnut (Arachis hypogaea L.) is an important annual legume originated in the Bolivia in South America which is now grown throughout the tropical, subtropical and warm temperate regions of the world. In India it is grown over an area of about 6.01 m ha with 10.24 m t production and productivity of 1700 kg ha^-1. A field experiment was conducted at research and demonstration block of Research Institute on Organic Farming, UAS, GKVK, Bengaluru during summer 2022 and 2023 to study the influence of residual organic sources on growth and yield of groundnut in finger millet-groundnut cropping sequence. The experiment was laid out in randomized block design with factorial concept and replicated thrice. The experiment consists of 12 treatment combinations of two levels of N equivalent and six organic sources along with control and UAS-B package. The experimental results indicated that application of bio-compost at 150% N equivalent resulted significantly higher plant height (46.99 cm), number of leaves per plant (40.28), pod yield (1821 kg ha^-1) and hulm yield (2938 kg ha^-1) of groundnut and was on par with poultry manure. Whereas, lower plant height (23.15 cm), number of leaves per plant (20.12), pod yield (937 kg ha^-1) and hulm yield (937 kg ha^-1) was recorded in control plots.