Cultivation of green manuring crops for improving soil health and increasing yield of rice in Tinsukia district of Assam- A case study

Abstract

An experiment was conducted at Tinsukia district of Assam during the Kharif season of 2015-2016 and 2016-17 to evaluate the soil properties, nutrient availability and productivity of rice as influenced by cultivation of green manuring crop dhaincha in acidic soil condition. The study revealed that the change in soil physical properties and nutrient availability was significantly increased under the green manuring practiced plot. On an average, incorporation of green manuring crop dhaincha increased 7.8% in paddy yield over the plots where dhaincha was not grown as green manure crops. Moreover, Dhaincha as green manure improved the soil physical environment, made the soil softer indicated by reduced bulk density, increased porosity and the availability of major nutrients and ultimately favoured in increased yield of rice (5400 kg/ha) with B: C ratio of 1.87 and a net profit of ₹ 27780.00/ha.