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Crop Research

Effect of integrated weed management practices on weed control and yield of sunflower (Helianthus annuus L.)


DOI: 10.31830/2454-1761.2025.CR-1036    | Article Id: CR-1036 | Page : 351-356
Citation :- Effect of integrated weed management practices on weed control and yield of sunflower (Helianthus annuus L.). Crop Res. 60: 351-356
MANI CH, VIKRAM SAI M, GUDAPATI ASHOKA CHAKRAVARTHY , VAMSHI M AND SAI KUMAR saivikram462@gmail.com
Address : Department of Agronomy, School of Agricultural Sciences, Malla Reddy University, Hyderabad – 500100, Telangana, India
Submitted Date : 3-07-2025
Accepted Date : 4-08-2025
Online Published:

Abstract

Weeds pose a serious threat to sunflower by competing for nutrients, water, space, and light, leading to substantial reductions in growth and yield. They also serve as alternate hosts for pests and diseases, which can further reduce productivity by up to 81%. As conventional methods show limitations, there is a pressing need to evaluate integrated weed management approaches for sustainable and efficient sunflower cultivation. Therefore, a field experiment was conducted during the rabi season of 2024-25 at Research Farm, School of Agricultural Sciences, Malla Reddy University, Hyderabad, to find out the effect of different integrated weed management practices on the weed dynamics, growth, yield, and economics of sunflower (Helianthus annuus L.). The experiment was laid out in a randomized block design with eight treatments, viz., the combination of Pendimethalin 30 % EC PE @ 1.0 kg a.i/ha + Quizalafop-ethyl 5% EC PoE @ 0.05 kg a.i./ha, Hand weeding at 30 days after sowing (DAS), Paddy straw mulching and intercropping with green gram (1:1) ratio and was replicated thrice. The results revealed that application of pendimethalin 30 % EC PE @ 1.0 kg a.i./ha + Hand weeding at 30 DAS resulted lowest weed density, dry weight, and higher weed control efficiency. This approach also yielded the highest seed and stalk yield, demonstrating its effectiveness in controlling weeds and enhancing the productivity of sunflower by reducing weed competition.

Keywords

Green gram paddy straw pendimethalin quizalafop-p-ethyl sunflower

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