Question:
Which of the following indices is generally used for yield forecast model?
Which of the following indices is generally used for yield forecast model?
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NDVI is the most widely used vegetation index in crop yield forecasting because it indicates vegetation health based on red and NIR reflectance.
Updated On: Feb 27, 2025
- \(\text{NDVI} \)
- \(\text{SAVI} \)
- \(\text{Soil brightness index} \)
- \(\text{None of the above} \)
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The Correct Option is A
Solution and Explanation
Step 1: Understanding yield forecasting.
Yield forecast models predict agricultural productivity based on vegetation health and growth trends.
Step 2: Importance of NDVI in yield estimation. - NDVI (Normalized Difference Vegetation Index) is widely used for yield prediction as it measures vegetation greenness and health. - SAVI (Soil-Adjusted Vegetation Index) is used in low vegetation cover areas to account for soil brightness. - Soil brightness index measures soil reflectance, not directly related to crop yield.
Step 3: Selecting the correct option. Since NDVI is the primary index for yield forecasting, the correct answer is a. NDVI.
Step 2: Importance of NDVI in yield estimation. - NDVI (Normalized Difference Vegetation Index) is widely used for yield prediction as it measures vegetation greenness and health. - SAVI (Soil-Adjusted Vegetation Index) is used in low vegetation cover areas to account for soil brightness. - Soil brightness index measures soil reflectance, not directly related to crop yield.
Step 3: Selecting the correct option. Since NDVI is the primary index for yield forecasting, the correct answer is a. NDVI.
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