基于GPR-WOA的辽宁省最优化化肥施用研究

hemical fertilizer is an important means of production to increase grain production and a necessary agricultural resource to ensure national food security. It plays an important role in today\'s agricultural production. Rational application of chemical fertilizer can promote agricultural production and efficiency, farmers increase income and get rich. In order to maximize grain yield, K-means clustering was carried out for cities with similar cultivated soil components by retrieving the elements per unit area of cultivated soil in Liaoning Province. In each category, the fertilizer application amount and yield per unit area of each city were retrieved over the years, and the correlation relationship was obtained by Gaussian process regression. Finally, the whale optimization algorithm was used to solve the target planning problem, and the fertilizer application amount of each city at the maximum harvest was obtained.