Research And Application Of Mobile Precision Fertilizer Assistant Decision System For Family Farm

The development of family business model is the main direction of China's current transformation of agricultural production mode,but also the requirements of construction of China's agricultural informatization.Through the development of family farm can integrate rural land resources,promote the transformation of agricultural production mode and speed up the process of getting rich among farmers.Precision fertilization technology is a mature agricultural production technology,the use of precision fertilization technology can effectively reduce the use of chemical fertilizers,improve food production,but also can protect the ecological environment.The introduction of precision fertilization techniques into agricultural production in domestic farms can further enhance household farm productivity.The traditional precision fertilization recommendation system is always applied to large farms.However,the size of the family farms is relatively small,there are also large differences in the size of family farms,so the precision of precision fertilization is higher.Talking about soil testing method,the existing fertilization recommendation system uses the traditional field soil mapping method to obtain soil physical and chemical data and it is a waste of time.It is difficult to meet the real-time requirement of fertilization decision?In addition,he existing system almost using C/S or B/S architecture model for system design which lacks of portable performance and flexibility.So the existing precision fertilization recommendation system is often not directly applied to family farm.In this paper,combining the agricultural remote sensing technology,mobile communication technology,3S technology,to solve some of the problems existing in the traditional fertilization decision system by studying the characteristics of family farms in China,This project relies on the project "Multi-platform Hyper-spectral Remote Sensing Information Fusion for Crop Nutrient Precise Diagnostic Decision" in Beijing ResearchCenter for information Technology in Agriculture.The project provides a lot of technical and data support.The system has the following characteristics:(1)The system adopts the mobile terminal/server-based architecture design,which can make full use of the computing performance of the mobile device,and then can easily obtain the device sensor data,While the portability of this system is high which can collect data with the sensor for real-time.(2)This paper fully combines the advantages of traditional soil testing methods and remote sensing inversion methods to obtain soil physical and chemical data and make fertilization decisions.Using the method of remote sensing data inversion,the soil data can be obtained directly and it is simple and will not affect the crop growth.We can choose all kinds of data resource according to the different size of the family farm.We can also dynamically adjust decision partition size to meet the requirement of high accuracy when we make decisions in the background.(3)By introducing DSSAT(Decision Support System for Agrotechnology Transfer)to simulate crop growth process.We can also verify the accuracy of decision results by extracting crop LAI(Leaf Area Index),yield data,nitrogen and other data.