Investigation and Countermeasures of Fertilizer Input in Yangzhou
To evaluate the fertilizer input of major crops in Yangzhou City,it is necessary to evaluate the present situation and existing prob-lems related to chemical fertilizer inputs in agriculture.The study analyzed the characteristics of the total inputs of different chemical fertilizers in each county(city,district)in Yangzhou City during 2016-2020,and provided suggestions for balance fertilization and yield abundance.The results showed that the total quantity of fertilizer applied in Yangzhou counties(cities and districts)decreased in the 13th Five-Year Plan peri-od(2016-2020).Among them,the application rate of organic fertilizer increased every year before 2017,and then decreased every year.The application rate of organic fertilizer in Baoying County was highest,and the application rate of organic fertilizer in Guangling District was lowest.The application rate of chemical fertilizer per unit area decreased every year.The application rate of chemical fertilizer per unit area in Guan-gling District was lowest,and the application rate of chemical fertilizer per unit area in Jiangdu District was highest.Overall,the total amount of nitrogen fertilizer application in Yangzhou City decreased every year,and the total application rate of phosphorus and potassium fertilizer in-creased every year.In summary,the author expounds the current problems in Yangzhou City,such as the application rate of chemical fertilizer were high,the high total input of nitrogen fertilizer,and the fertilizer management was sample.In view of those problems,this paper puts forward some ways to improve the quality of cultivated land during the'14th Five-Year Plan'period by optimizing the fertilization structure,making full use of organic fertilizer,adjusting the rate of fertilizer application and increasing fertilization efficiency.
Chemical fertilizerOrganic fertilizerNitrogen-phosphorus-potassium application ratioYangzhou City
国家科技期刊平台
NSTL
万方数据
