Study on Different Sources of Organic Manures in Comparison with RDF on Growth and Yield of Sorghum [Sorghum bicolor (L.) Moench]
F. Pastina Rachel *
Division of Agronomy, School of Agricultural Sciences, Karunya Institute of Technology and Sciences, Coimbatore-641114, India.
S. Alagappan
Division of Agronomy, School of Agricultural Sciences, Karunya Institute of Technology and Sciences, Coimbatore-641114, India.
P. A. Joseph
Division of Agronomy, School of Agricultural Sciences, Karunya Institute of Technology and Sciences, Coimbatore-641114, India.
J. Patricia Kalai Arasi
Division of Plant Physiology, School of Agricultural Sciences, Karunya Institute of Technology and Sciences, Coimbatore-641114, India.
*Author to whom correspondence should be addressed.
Abstract
A field experiment was conducted during the rabi season of 2022 at Karunya Institute of Technology and Sciences, Division of Agronomy, Coimbatore, to study the different sources of organic manures in comparison with RDF on growth and yield of sorghum (Sorghum bicolor (L.) Moench). The experiment was laid out in a randomized block design with eight treatments and replicated thrice. The treatment consisted of T1 - Absolute control, T2 - RDF 100% (Inorganic), T3 - Vermicompost 100% on N equivalent basis, T4 - Farmyard manure 100% on N equivalent basis, T5 - Farmyard manure 50% + Vermicompost 50%, T6 - RDF 50% + Farmyard manure 50%, T7 - RDF 50% + Vermicompost 50%, T8 - RDF 50% + Farmyard manure 25% + Vermicompost 25%. Therefore from this experiment the results concluded that application of RDF 100% (Inorganic) significantly recorded maximum plant height (228.76 cm), total dry matter production (13485 kg ha-1), leaf area index (LAI) (5.80), chlorophyll content (SPAD) (37.89), grain yield (3770 kg ha-1) and straw yield (6600 kg ha-1) respectively.
Keywords: RDF, vermicompost, farmyard manure, growth, yield