Threshold concepts are critical in weed science as they help farmers and agronomists determine when weed control measures are necessary The concept of thresholds is based on the idea that there is a certain level of weed infestation beyond which crop yields are significantly impacted. The class 12 ncert notes pdfs are available so students can access them without the internet The notes include important definitions, points, formulas, and diagrams. The concept of thresholds has many applications in weed science, depending on the response being measured The most common adjectives used to describe thresholds are damage, economic, period, and action.
Critical period of weed control is a threshold commonly used, which is relative to time from planting date Researchers have identified at what point during the growing season weeds can inflict the most damage on a crop’s potential yield. Determining ets or action thresholds of weeds involves methods that can measure and predict the level of weed infestation.
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