Present Situation And Improvement Countermeasures Of Cultivated Land Quality In Yizheng City

Cultivated land is an important lifeline to ensure food production.Cultivated land is the source of the growth of all things.Protecting cultivated land ensures food security.Cultivated land is the basis for human survival and the carrier of development.The safe production of food,the quality and quality safety of agricultural products,and the strong,rich,beautiful and high development of agriculture and rural areas depend on the quality of cultivated land.Therefore,comprehensively improving the quality of cultivated land and promoting the reduction and efficiency of chemical fertilizer are the key to improve the comprehensive productivity of cultivated land.If we want to realize "storing grain in the land",we must adhere to the combination of land use and land cultivation,and work for a long time."Green water and green mountains are golden mountains and silver mountains".In recent years,the improvement of cultivated land quality has attracted much attention.As the basis of food production,there is no doubt about the importance of cultivated land.As the most precious resource of our country,its importance is directly related to more than one billion people in the country.To this end,the CPC Central Committee and the State Council have issued relevant policies and regulations,which are committed to the combination of land cultivation and land cultivation,so as to ensure the improvement of cultivated land quality without reducing the total area of permanent basic farmland.More people and less land,scarce effective cultivated land resources and prominent contradiction between people and land are the basic national conditions of China.In this case,in order to ensure the stable production and supply of grain,promote the reduction and efficiency of chemical fertilizer,and improve the cultivated land fertility and comprehensive agricultural production capacity,China urgently needs to take measures to promote the reduction and efficiency of chemical fertilizer and the improvement of cultivated land quality.This paper comprehensively uses the literature research method to query and learn the relevant historical data,extract,sort out and analyze the data;The field experiment was carried out by using the field investigation method,and the field data were collected and recorded to obtain the first-hand data of this study;Using the comparative analysis method,this paper compares the technical measures for improving the quality of cultivated land and reducing and increasing the efficiency of chemical fertilizer at home and abroad,combined with the current situation of cultivated land quality and technical measures in Yizheng City,and puts forward the optimization countermeasures to promote the improvement of cultivated land quality and reducing and increasing the efficiency of chemical fertilizer in Yizheng.This paper summarizes the soil types and distribution,physical and chemical properties of cultivated land soil in Yizheng City,systematically analyzes the current situation of cultivated land quality in Yizheng City,and summarizes the problems of cultivated land quality in Yizheng City,such as larger bulk density,shallower plough layer,balance of occupied and supplemented area,but unbalanced quality,unreasonable fertilizer structure,soil hardening,soil organic matter to be improved,low level of cultivated land management The training of new vocational farmers is not enough.This paper probes into the technology of improving cultivated land fertility,and puts forward the popularization Countermeasures of improving cultivated land quality and reducing and increasing fertilizer efficiency in line with the reality of Yizheng.First,straw returning technology.Through the rational use of carbon,nitrogen,phosphorus,potassium and other nutrient elements in straw,loosen the soil,reduce the capacity,improve the activity of microorganisms in the soil,enrich the soil microbiota,promote the development of crop roots,and realize high and stable yield of crops.The second is the technology of increasing the application of organic fertilizer.Through the technology of replacing part of chemical fertilizer with organic fertilizer,the use of chemical fertilizer is reduced,the quality of cultivated land is improved,the quality of agricultural products is improved,and the adjustment of agricultural supply side structure and the revitalization of rural industry are promoted.The third is the technology of interplanting green fertilizer under the forest.By planting green manure,replace "small fertilizer" with "big fertilizer".Adhere to the combination of land cultivation and land use to achieve the synchronous improvement of quality and yield.Fourth,soil testing and formula fertilization technology.Make full use of the soil testing and formula fertilization expert system,and based on the annual soil testing data,put forward the formula that meets the actual needs of Yizheng,so as to serve agriculture,rural areas and farmers conveniently and efficiently.The fifth is the deep side fertilization technology of rice.At the same time of rice transplanting,the fertilizer is applied to the lateral roots of the seedlings quantitatively and evenly at one time through the fertilizer pipe,so as to realize precise fertilization,make the seedlings live faster,save labor and time,reduce environmental pollution and achieve high yield and high quality.Sixth,nitrogen fertilizer controlled release technology.With the degradation of coating,chemical fertilizer is slowly applied to crops,which has the advantages of safety,long-term and high efficiency.The application of new slow and controlled release fertilizer can effectively reduce the total amount and times of fertilization,reduce the labor intensity and improve the agricultural production efficiency.