Nutrient uptake by rice and weeds as influenced by different weed management practices in dry-seeded rice Hemalatha K.*, Ramana A.V., Murthy K.V. Ramana, Jagannadam J. Department of Agronomy, Acharya N.G. Ranga Agricultural University, Agricultural College, Naira, Andhra Pradesh, 532 185 *Corresponding author: kutikuppalahemalatha@gmail.com
Online published on 27 December, 2017. Abstract Among the herbicides, application of orthosulfamuron 100 g/ha was effective in suppressing sedges and broad-leaved weeds, metsulfuron-methyl + chlorimuron-ethyl 4 g/ha was effective in suppressing broad-leaved weeds and sequential application of pendimethalin 0.75 kg/ha at 3–5 DAS fb metsulfuron-methyl + chlorimuron-ethyl 4 g/ha at 20–25 DAS performed better in controlling weeds resulting in higher weed control efficiency and lower weed index when compared to alone application of herbicides either as pre-emergence and post-emergence. Pre-emergence application of pendimethalin 0.75 kg/ha at 3–5 DAS fb metsulfuronmethyl + chlorimuron-ethyl 4 g/ha as post-emergence at 20–25 DAS, was evidenced higher grain yield and higher uptake of nutrients in crops and lower uptake of nutrients i.e., N, P and K in weeds Top Keywords Dry-seeded rice, Herbicides, Nutrient uptake, Weeds. Top |