Comparative Advantage Prediction for Rice Production of Heilongjiang Province Based on the Grey Separating Model

According to the principle of the grey model,taking the outputs and planting area of rice in Heilongjiang province for more than 20 years as the research objects,the prediction model in analyzing optimal grey separating model and forecasting the comparative advantage of rice was established.The results indicate that the grey separation model plays an important role in economic analysis for grain crops.