Thermal Response of Scented Rice under Different Weed Management Practices in Organic Production System

Abstract

A field experiments on evaluation of weed management practices in scented rice under organic production system was conducted during 2017-18 and 2018-19 at All India Coordinated Research Project on Farming System, Rewa (M.P). The study reveals that weed control efficiency and grain yield of rice were maximum under incorporation of mustard oil cake 5 t/ha+1 HW and two hand weeding at 25 and 50 DAT. The net profit and B:C ratio were maximum under 2 HW at 25 and 50 DAT followed by mulching with locally available weed mulch @ 3 t/ha+1 HW under organic production system which also gave B:C ratio more than 2. Heat use efficiency was maximum 7.94 kg/ha per GDD under incorporation of mustard oil cake @ 5t/ha with one hand weeding followed by 2 HW at 25 and 50 DAT.

Weed Management in Rice-Garlic under Organic Production System

“…63% in rice and 62% in garlic followed by incorporation of mustard oil cake @ 50 quintal per hectare in rice and garlic which gave weed control efficiency 66.24% in rice and 58.47% in garlic. Similar findings were also reported by Prajapat et al, (2019) and Aske et al, (2018).…”

“…Beneficial effect of mustard oilcake @ 50 q/ha + one hand weeding supplied the extra nutrients by which crop grow luxuriously. Similar findings were also reported bye Islam et al (2007) Prajapat et al, (2019 and Aske et al, (2018).…”

“…It may be due to excess supply of nutrient in concentrated form through mustard oil cake which favours the growth of rice and garlic over farmers practice. Beneficial effect of mustard oil cake on growth and yield of rice and garlic was also reported by Islam et al, (2007), Prajapat et al, (2019 and Anonymous (2020).…”