Current Situation and Optimization Strategies of Fertilizer and Pesticide Application in Wuzhong District of Suzhou City
Fertilizer and pesticide reduction and efficiency is an essential initiative to promote the sustainable de-velopment of China's agriculture,therefore,analyzing the current situation of pesticide and fertilizer application in Suzhou City has a signifiicant guiding role in realizing the fertilizer and pesticide reduction and efficiency.In this paper,research is conducted on agricultural cultivation in Wuzhong District,Suzhou City,from 2019 to 2022,in-cluding:fertilizer varieties,fertilizer and pesticide dosage,planting area and production,and the total amount.In-tensity and types of fertilizer and pesticide inputs among different townships and crops in Wuzhong District are statistically analyzed according to the results of the research.The results indicate that the overall trend of fertilizer application and application intensity in Dongshan Township,Wuzhong District,Suzhou City,from 2019 to 2022 is upward,while the fertilizer application efficiency is downward.Among which,the total amount of fertilizer appli-cation and application intensity in Dongshan Town in 2020 were the highest,which were 2750.93 t and 101.34 kg/hm2,respectively;the fertilizer application of cash crops(tea,fruit trees and vegetables)accounted for 98.97％of the total amount,among which the average fertilizer application of loquat was the highest at 1,223.40t,which ac-counted for 51.90％of the total average fertilizer application.The highest fertilizer application intensity was 32.85 kg/hm2.The total pesticide application in all townships of Wuzhong District,Suzhou City,from 2020 to 2022 showed an overall decreasing trend,which maintained at 225.46～233.49 t.Except for Mudu County,pesticide ap-plication showed an increasing trend,and the rest of the townships showed decreasing pesticide application.Pesti-cide application of rice,tea,and fruit trees showed a decreasing trend,and wheat,oilseed rape and vegetables showed a fluctuating upward trend.At present,the application of fertilizers and pesticides in Wuzhong District of Suzhou City is still unreasonable.It is necessary to strengthen macro-control,implement reasonable regional dis-tribution of fertilizer resources,and adopt optimization plans according to local conditions to achieve the reduc-tion of fertilizers and pesticides,increase the efficiency,and improve the economic efficiency and environmental benefits of farmland.
fertilizerpesticidereduction and efficiencyoptimization strategies
万方数据
维普
