Research And Service Platform Construction Of Scientific Fertilization Of Plateau Characteristic Agricultural Planting Under The Support Of GIS

Agriculture is an important basic industry in Yunnan.The development strategy of plateau characteristic agriculture is the positioning of Yunnan agriculture made by the Central Committee,Yunnan provincial Party committee and Yunnan provincial government according to the regional characteristics and development foundation of Yunnan and under the good national agricultural development policy environment.Under the background of scientific,harmonious and leaping development in Yunnan,the sustainable and healthy development of agriculture is a major realistic proposition.In this paper,the related theories of fuzzy mathematics,grey system and Bayesian prior decision-making are systematically studied,and the methods and technologies of cultivated land quality evaluation,AHP,fuzzy evaluation,fuzzy clustering,fertilization system,field experiment,regional fertilization and precision fertilization are elaborated;In view of the requirements of Plateau Characteristic Agricultural Planting for quality evaluation of cultivated plots,statistical analysis of field experiments to obtain fertilization effect function coefficient,and recommendation of Precise Fertilization for plateau crops at plot level,the basic data of soil testing and field experiment data of agricultural departments were used to fully absorb the field experiment data of agricultural departments of the whole province for many years,and the amount of nitrogen,phosphorus and potassium fertilizer applied before plots was considered,The recommendation algorithm of precision fertilization based on grey model was designed;On this basis,the agricultural planting service platform was developed to realize the scientific fertilization recommendation of crops,facilitate the guidance of farmers to carry out the scientific planting of Plateau Characteristic Agriculture,effectively apply chemical fertilizer and reduce the impact of non-point source pollution.The research work and achievements mainly include:(1)This paper introduces the theories of fuzzy mathematics,grey system and Bayesian prior decision-making,and expounds the methods and technologies of cultivated land quality evaluation,analytic hierarchy process,expert scoring,fuzzy evaluation,field experiment,regional fertilization and precision fertilization.Based on the field experiment data of provincial agricultural departments for many years,a fertilization recommendation system based on grey model and Bayesian prior decision-making is designed,The optimal fertilization recommendation scheme was given.(2)The requirements of users and agricultural technology departments were analyzed,and the overall and functional design of PC terminal,touch screen terminal and mobile terminal system was carried out.(3)The crop planting service platform is developed,and the functions of PC and touch screen are realized.It can provide farmland fertility evaluation,membership model storage,field test statistical analysis and data storage,regional Fertilization Formula storage,plot level fertilization recommendation,and plot level precise fertilization.