Present Situation And Standardized Contro Of Pesticide Residues On Apple In Shaanxi Based On Export Standard

Pesticide residue is an integrated and significant problem,which destroys the ecologica l environment,brings potential food safety problems,and also hinders the market developmen t of the commodity economy and the construction of the group reputation.It has great influen ce on the export trade of agricultural products.Since the economic globalization,some develo ped countries,those with technological advantages and information advantages,make a fuss a bout pesticide residues,use it as a mean of technical barriers to trade,and continue to improv e the threshold to prevent importing agricultural products from other countries aiming to prote ct domestic agriculture and agricultural markets.In this paper,by means of information collec tion,experimental testing,site investigation and comparative analysis,the types of pesticide r esidues were found,which are the key factor that hinders exporting Shaanxi apple to the Unite d States.Then,the nature of the target pesticide,the current situation of pesticide use,the rea l cause of excessive pesticide residues were analyzed.Finally,Carbendazim residue was foun d to be the major reason of the current export barriers of apple because of its high stability,po or degradability,easy residue,and reproductive toxicity.In order to solve this problem,this pa per developed an agricultural standardization-based field control technique,which can be use d to guide the usage of carbendazim and drop the residues in Shaanxi apple.The main conclusions of this study are: 1)carbendazim residue is a key factor that limit s Shaanxi apple exporting to the United States.2)In the production of apple,some widely use d pesticides are metabolized to carbendazim,such as methyl thiophanate and benomyl.3)In t he major producing areas of Shaanxi apple,the usage of pesticide still has many problems: lac k of pest forecasting and concern to tree vigor;regular application of pesticides is common;di spensing is not standardized,together with blind selection,bad mixing,and old spraying Equi pments,which reduce the effect of diseases prevention and result in excessive use of pesticide s.4)This situation is caused by many factors,including the poorly educated farmers,imperfe ct agricultural market management,and unthoroughly executed government regulation and im plementation of agricultural technology.5)Through the comparison of domestic and foreign carbendazim residue standard,it is found that the standard of carbendazim in our country is un clear,loose and does not conform to the international standard parameter.6)Using the princip les and methods of standardization,the key points to reduce pesticide residues were extracte d: cultivation of tree vigor,forecast of pests and diseases,and pesticide use technology.Based on the above situation,combined with modern ideas and standardized ideas,the k ey to control three major fungal diseases in the Loess Plateau was put in order to improve th e export capacity of Shaanxi apple and get rid of pesticide residue barriers as soon as possibl e.Meanwhile,an instruction was developed to reduce the use of carbendazim,which showe d significant guidance in practice.