Question

Which of the following indices is generally used for yield forecast model?

• A. \(\text{NDVI} \)
• B. \(\text{SAVI} \)
• C. \(\text{Soil brightness index} \)
• D. \(\text{None of the above} \)

Hint:

NDVI is the most widely used vegetation index in crop yield forecasting because it indicates vegetation health based on red and NIR reflectance.

Answer 1

The Correct Option is A

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.