1Ph.D. Research Scholar, Division of Agronomy, ICAR-Indian Agricultural Research Institute, Pusa, New Delhi-110 012
2Principal Scientist, Division of Agronomy, ICAR-Indian Agricultural Research Institute, Pusa, New Delhi-110 012
3Senior Scientist, ICAR-National Rice Research Institute, Cuttack, Odisha-753 006
4Senior Scientist, Division of Agronomy, ICAR-Indian Agricultural Research Institute, Pusa, New Delhi-110 012
5Director, Central Research Institute for Dryland Agriculture, Santoshnagar, Hyderabad, Telangana-500 059
ICAR-National Rice Research Institute, Central Rainfed Upland Rice Research Station, Hazaribagh, Jharkhand-825 301
Online Published on 29 January, 2022.
A field experiment was conducted at the Hazaribagh, Jharkhand, during the rainy season (kharif) of 2019, to find out the effect of nutrient and weed management on growth and yield of direct-seeded, upland rice (Oryza sativa L.). The field experiment was laid out in a split-plot design, comprising 3 nutrient-management practices in the main plots and 5 weed-management practices in the subplots, with 3 replications. The study revealed that, precision nutrient management like Nutrient Expert ® guided NPK and weed management through Pendimethalin followed by (fb) hand-weeding recorded lesser weed density (7.24 and 7.34 respectively), least weed dry weight at harvesting (10.11 and 9.94 g/m2 respectively), maximum grain yield (3,630 and 4,090 kg/ha respectively) and higher leaf area index (LAI) at 60 days after sowing (60 DAS) as compared to weedy check. Also, there was a significantly positive correlation observed among the yield-attributing characters for obataining higher grain yield.
Weed density, Weed dry weight, Hand-weeding, Nutrient expert, Weed index, Leaf-area index
