Study On Evaluation And Promotion Strategy Of Cultivated Land Fertility In Aksu Region

Aksu region is the national high quality cotton production area,the famous rock candy heart apple production area.The physical and chemical properties and fertility of cultivated land in Aksu area have changed to some extent since the soil testing formula fertilization project was implemented.Through the evaluation of cultivated land capacity in Aksu region,this study puts forward the cultivation measures of soil of different types of cultivated land capacity,which provides digital support and effective strategies for the effective utilization of cultivated land soil,cultivation of cultivated land capacity and sustainable development of agriculture in Aksu region.Based on the successful experience and typical practices of relevant researches at home and abroad,this paper grasped the soil fertility status of Aksu region through soil sample collection,agrochemical analysis,data classification and correlation analysis,and classified the farmland fertility.The research results are as follows:(1)The average contents of soil nutrients in cultivated land in Aksu region were 13.8 g/kg of organic matter,0.79 g/kg of total nitrogen,71 mg/kg of alkali-hydrolyzed nitrogen,18.5mg/kg of available phosphorus and 164mg/kg of available potassium.(2)Among the cultivated land in Aksu region,the first-level land is 48,323 hectares,accounting for 8.83%,the second-level land is 143,688 hectares,accounting for 26.26%,the third-level land is 193,054 hectares,accounting for 35.28%,the fourth-level land is 114,676 hectares,accounting for 20.96%,and the fifth-level land is 47,394 hectares,accounting for 8.66%.(3)The main obstacles to crop yield in Aksu region include soil salinization,soil barren,soil compaction,soil profile barriers and incomplete farmland infrastructure.(4)The fertilization models of wheat,cotton and corn were established,and the fertilization zones were divided.(5)According to the classification characteristics of soil fertility in Aksu region,this paper puts forward the cultivation strategy of cultivated land fertility in this region,emphasizes to promote the fertilization strategy of replacing part of chemical fertilizer with organic fertilizer,vigorously promote the transformation and application of soil testing formula fertilization technology,improve the fertilization method,improve the utilization rate of chemical fertilizer,improve the technical guidance,highlight the demonstration guidance,and accelerate the process of improving soil fertility in Aksu region.