The method for generating the paddy rice crop yield forecasting model includes generating by a crop yield forecasting formula calculation unit 30, a crop yield forecasting formula based on a correlation between backscattering intensity in a sample field during the first half growth period, obtained in a wide range using SAR (Synthetic Aperture Radar), and a growth feature of the paddy rice obtained by field investigation, such as the number of stems. 収量予測式算出部30は、SARを用いて広範囲で得られる生育期前半における標本圃場での後方散乱強度と、現地調査により得られる茎数等の水稲の生育的特徴との相関に基づき収量予測式を生成する。 - 特許庁