China's fruit production is not only a big country， but also the resources of fruit China's total fruit production， cultivation area， the types of resources， they know one another first in the As one of the world's native fruit center， China's fine selection of species and varieties have been introduced to the world， greatly promoted the development of the world's fruit production and improved varieties， the fruit industry of the world made a great contribution to China should play a fruit rich in resources and enhance fruit production and to speed up the progress of biotechnology to improve the use of fruit resources， establishment of a new type of modern fruit industry in order to promote China's sustainable development and efficient China has come a long way to efficient fruit development， must be scientific and effective Fruit mineral content which affects the quality of its output an important Nitrogen can promote the growth of shoots of fruit trees to improve the photosynthetic efficiency， reduce flower drop， fruit accelerated expansion and the promotion of flower bud If nitrogen is low， the tree malnutrition， short leaf yellow sticks， flower drop， weakened resistance to shorten life Phosphorus in the promotion of flower bud differentiation， flowering earlier results， the promotion of fruits， seeds mature， and to improve fruit quality to promote root growth and improve fruit cold， drought，抗盐碱ability are K is sufficient to promote mature branches， and enhance resistance， in particular， can increase the fruit， rendering a good， quality good， cracking less resistant storage， so it was the potassium known as the "fruit of " Calcium is conducive to plant heat and Calcium on soil microbial activity and insecticidal sterilization have good Calcium deficiency root growth is often so poor withered branches， flowers atrophy， easy to get stone fruit trees and root gummosis Fruit rot and is closely related to calcium deficiency， calcium and more fruit， markedly improved As well as other elements on the growth of production has a crucial Graduated from our design based on these facts， the basis of mineral content in order to use java + Access to develop diagnostic systems -------" fruit mineral nutrition diagnostic " The system is divided into several functional modules， including: registry， import， export， print， save， display historical data， is derived based on historical data and data modification， while the functions of the system， and a detailed analysis of the database design and describes this system development environment， tools and related
