| Since the middle and late 20 th century,the problem of soil deterioration caused by excessive application of chemical fertilizers in tea gardens has become increasingly prominent.Rational application of organic fertilizers has become an effective means to improve soil physical and chemical properties,improve soil fertility,and ensure the quality and safety of tea.In recent years,most tea areas advocate the use of organic fertilizers,but there are many problems in the operation process: there are many kinds of organic fertilizers on the market,the quality of which is not uniform;some animal organic fertilizers come from modern intensive farms,which are at risk of polluting tea gardens by improper or excessive application;there is no organic fertilizer information system for tea gardens,tea farmers have limited access to organic fertilizers,difficulty in selecting organic fertilizers for tea gardens,and excessive or insufficient fertilization..Therefore,on the basis of traditional agricultural production management,a computer database technology is applied to establish an information system which integrates the functions of statistics,retrieval and recommendation of organic fertilizers for tea plantations.It is helpful to the effective selection of organic fertilizers for tea plantations.This article is based on national registration and some scientific and technical literature reports,the use of organic fertilizers in the monograph,attributes and important physical and chemical properties,etc.Identify and select the organic fertilizer for tea garden and construct a tea garden organic fertilizer information system based on Android mobile phone.The main contents and results of this study are as follows:1.Conducted user needs survey analysis.Through demand interviews with managers,tea growers and Tea technical service personnel of tea plantation bases in Fujian,Guangdong,Hubei and Anhui provinces,the results show that due to the variety of organic fertilizers in tea plantations,the uneven quality of organic fertilizers,and the obstruction of expert consultation channels,the main body of tea plantations has the need to systematically collate and summarize the information of organic fertilizers in tea plantations,the need for scientific information,and the credibility.The requirement of simple information acquisition and the functional requirement of organic fertilizer recommendation using tea garden data.2.Established tea garden organic fertilizer database.Through the national fertilizer registration database,scientific literature reports,monographs,field surveys and market surveys as the main data sources,the organic fertilizers for tea gardens were identified and recorded,and the information table of organic fertilizers in tea gardens was formed.This database contains a total of 111 kinds of organic fertilizers for tea gardens.It provides data source for organic fertilizer information system of tea garden.3.The information retrieval index and proofreading display information of organic fertilizer in tea garden were defined.According to the nutrient characteristics of tea plant,the field management characteristics and the application principles of organic fertilizer,soil structure,soil acidity and alkalinity,soil organic matter content,tea and three-year average yield per mu were selected as retrieval indexes,and the names,types,physical and chemical properties,application methods,application dosage,application frequency,function,matters needing attention and information sources of organic fertilizer were selected as display contents of organic fertilizer information.Professional proofreading is also carried out to provide the basis for the selection and use of organic fertilizer by the main body of tea garden.4.Constructed a tea garden organic fertilizer information system.By analyzing the design principles,system requirements,structural design and safety design of the tea garden organic fertilizer information system,the LAMP architecture model was used to develop the tea garden organic fertilizer information system based on the mobile phone WeChat platform,and the functions and codes of the main modules of the system were introduced.It provides a basis for the selection and use of organic fertilizers in tea plantations. |