METHOD OF GENERATING PADDY RICE CROP YIELD FORECASTING MODEL, AND METHOD OF FORECASTING CROP YIELD OF PADDY RICE

摘要

PPROBLEM TO BE SOLVED: To provide a method of generating a paddy rice crop yield forecasting model for solving such problems that field investigation of yield forecasting of paddy rice to be cultivated in a field requires labor, forecasting by weather data at stations installed on the whole country is hard to secure accuracy, and forecasting by optical remote sensing is influenced by weather. PSOLUTION: 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. Furthermore, the method includes using the crop yield forecasting formula and searching by a crop yield calculation unit 34, the estimated value for a growth feature of the paddy rice from backscattering intensity, obtained from an SAR image obtained by photographing a paddy rice field as an object of the first half growth period. The number of grains is predicted from the estimated value for the growth feature of the paddy rice, since the growth feature correlates with the number of grains of rice. PCOPYRIGHT: (C)2011,JPO&INPIT