Study Of Pollution-free Cultivation Of Citrus And Its Development Of Green Food

Citrus is main one amony economic orest fruits of the world and is fruit tree with the most large area of cultivation and the most great production in south of china. Citrus is a special commodity, which is often eaten with fresh and raw Condition by people. With Society advancing and living standard inprovement , everycountry made more and more strict criteria on health of various orest food,consequently,it was so to be quali- ty and health of orange. The place of mandarin oranges of Dongjiang Reservoir area in zixing city was regarded as the studying object in the article. This study investigated and analysed three industrial wastes that directly polluted mandarin orange and Forestry farmers mistaking operation which polluted orange garden , examining and analysing air, soil, water of themandain oranges in key areas. After mastering pollution extent,it finally brought forward means and measures which could restore ecological environment of the mandain oranges. On the basis of this ,making full use of ccological ,biological and cultivating principal ,it planned to resume ecological environment and thus perform systematical studies, which resulted in accomplishing ecological orange garden construc- tion, orange cultivation without harmness and matching technologies of production of green food of orange . The tcchnologics of cultivation without harmncss focuse on se- lecting the place without three industrial wastes which has good environment and is far away from cities,factories and mines to build the key areas,making the most of good- cology environment to be composite management of orchard scattering more organic manure and persisting in twice covering and laying plant in a year, modifying motheds of repair and prune and noticing to kccp blossom and fruit , noticing synthetic and agricul- tural treatment of pest , forbidding to abuse chemical pcsticidc in orangc garden and so forth . High production , good quality and highly productive efficiency of oranges of Dongjiang Reservoir area was come true. It found Out a new way which brought about e- cology and economy to adjusting and sustainable development for Reservoir.