Vol. 11, Issue 5 (2022)

Author(s):
Jigyasa Trivedi, SL Mundra, MK Kaushik

Abstract:
Results of field experiment carried out during rabi 2017-18 and 2018-19 at Instructional Farm, Rajasthan College of Agriculture, Udaipur, indicated various weed-management treatments significantly enhanced N, P and K uptake by barley (Hordeum vulgare L.) and reduced removal of nutrients by weeds as compared to weedy check at harvest. After weed free treatment maximum saving of 89.03 % nitrogen, 89.52% phosphorus and 90.21 potassium was achieved with tank mixture of pinoxaden 40.0 g ha^-1 and carfentrazone ethyl 20.0 g ha^-1 35 DAS (W5). This treatment gave 20.43% and 20.73% more grain and straw yield, respectively, on pooled basis compared to weedy check, which was followed by tank mixture of pinoxaden 40.0 g ha-1 and metsulfuron methyl 4.0 g ha^-1 35 DAS (W4). The yield as well as uptake of N, P and K by the crop were maximum with 90 Kg N ha^-1 which was statistically at par with 75 Kg N ha^-1.