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Relative Efficacy of Different Weed Management Practices on Growth, Yield and Weed Dynamics in Sunflower
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Relative Efficacy of Different Weed Management Practices on Growth, Yield and Weed Dynamics in Sunflower
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Journal Article
Relative Efficacy of Different Weed Management Practices on Growth, Yield and Weed Dynamics in Sunflower
2021
Overview
[...]there is an urgent need to compare the relative efficacy of different herbicides solely and in combination with different cultural methods to find out the most efficient technology discouraging the weed establishment in the sunflower field, especially during a critical period. Since information available on efficient herbicide-based weed management practice is meager. [...]all the data were statistically analyzed for randomized block design at 5% level of significance RESULTS AND DISCUSSION Weed density significantly effects on weed dry weight if the weed density is less similarly the weed dry weight is less and there is lesser weed density the competition between the crop and weed for moisture, nutrients, space is less growth parameters like plant height, stem grith, head diameter is more growth parameters is higher yield of the crop brief details about the experimental details about the weed density and weed dry weight and their impact on growth parameters like plant height, stem grith. Number of leaves/plant number of seed/head, head diameter, yield are discussed below Weed density and dry weed weight Among the weed control treatments, pendimethalin @ 0.75 kg/ha at 1 DAS followed by Sodium aciflurofen + Clodinafop propargyl @ 125 g/ha at 21 DAS (T4) was effectively controlling the weed density and total weed dry weight of the weed species present in the experimental field. A higher number of leaves was due to the integration of preemergence herbicides provided better weed control by decreasing the weed density and dry matter thus reduced weed competition thereby facilitated the better utilization of crop growth resources.
