Discuss the impact of shifting weed flora under climate change on millet productivity. How can adaptive weed management strategies, including herbicide rotation and mechanical control, be optimized for sustainable millet cultivation?
Bal Manohar
New and stronger weeds appear: Warmer weather and uneven rainfall help some tough weeds (like Parthenium or Commelina) grow faster. These weeds compete with millets for water, nutrients, and sunlight, reducing crop yield. Weeds grow for longer periods: Due to changing climate, weeds don’t all grow at once. They keep appearing in stages, making them harder to remove on time. Herbicides may not work well: High temperatures and increased CO₂ in the air can reduce the effect of chemical weed killers, leading to poor weed control. More stress on crops: In rainfed areas, weeds that can survive dry conditions grow better and compete with millets, taking away moisture and nutrients.
Himanshu Tiwari Climate change is causing changes in the types of weeds growing in millet fields. This affects millet productivity in the following ways:
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