Abstract Using three years (Dec through Apr) data sets, fifteen days interval Integrated NDVI (INDVI) values during 15 Jan – 30 Mar were regressed with yield values. Ludhiana, Karnal and Kurukshetra districts with 68.6 to 75.77% Geographic Area under Agriculture (GAA) and 89.34 to 96% of Agriculture Area under Wheat (AAW) gave minimum estimation error of 5.19%, (r-square=0.82) for 15–29 Jan INDVI segment. With the inclusion of districts of Jind, Faridabad and Sonepat (GAA:61.9–64.4%, AAW:84.08–86.71%) the lowest error was 7.07%, (r-square=0.76) for 15 Jan – 30 Mar INDVI segment while it was 7.89% (r-square=0.72) for 30 Jan–13 Feb INDVI segment. Further inclusion of Hisar and Gurgaon district (GAA: 40.61–40.66%, AAW:80.22–86.49%) gave lowest error of 9.14% (r-square = 0.72) for 16–30 Mar segment INDVI, error being 13.33%, 11.70% for 15–29 Jan and 30 Jan–13 Feb segments INDVI respectively. INDVI could enable yield estimation with 60/75 days lead time within 5 to 8% error for district having GAA > 60%.


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    Title :

    District level wheat yield estimation using NOAA/AVHRR NDVI temporal profile


    Contributors:
    Gupta, R.K. (author) / Prasad, S. (author) / Rao, G.H. (author) / Nadham, T.S.V. (author)

    Published in:

    Advances in Space Research ; 13 , 5 ; 253-256


    Publication date :

    1993-01-01


    Size :

    4 pages




    Type of media :

    Article (Journal)


    Type of material :

    Electronic Resource


    Language :

    English





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