Influence of organic manure on soil's physical, chemical properties and yield of Onion
1M.C. Subha and 2F. Jeyamangalam
1Research Scholar Reg No: 20121072132006, 2 Associate Professor and Head Department of Physics and Research center, Sarah Tucker College (Autonomous), Tirunelveli-627007 (India) Affliated to Manonmanium Sundaranar University, Tirunelveli-627012, Tamil Nadu, India, Corresponding Author subhamc86@gmail.com
ABSTRACT
Repeated cultivation of crops makes the soil infertile and deficient in minerals. Organic manure enhances the texture, structure and fertility of the soil thereby increases the crop yield. Organic manure produces positive impact on soil and creates pollution free environment. Because of organic farming people also get good health and nutrients.A field experiment was conducted during early Kharif season of 2020 at Alangulam, Tenkasi district of Tamil Nadu, India. The main objective of this study is to analyse the impact of organic manure on the growth, yield of onion and soil physical properties. In this study Farm Yard Manure (FYM), Goat Manure (GM) and Charcoal Manure (CM) are used as organic manures Highest onion yield ( 4758 kg ha-1) was recorded in the treatment FYM+GM+CM @ 12.5 t ha-1. Lowest yield (1500 kg ha-1) was recorded in the control plot ( does not receive any manure). Results of this study revealed that soil treated with organic manure produced high onion yield compared to control. Organic manure also improved Soil Organic Carbon (SOC) level in the soil, there by increased Water Holding Capacity(WHC) and Porosity (PO).