Application Evaluation And Parameter Optimization Of Intelligent Fertilization System For Cotton In Xinjiang

The intelligent fertilization system(hereinafter referred to as the system)has been increasingly applied in Xinjiang cotton areas.Based on the application effect of the system on Xinjiang cotton,it recommends fertilization for farmers who use the system,and finally realizes scientific fertilization and improves cotton production.Output ratio.This paper uses questionnaires and interviews to conduct field surveys in 10 counties and cities in Xinjiang.Based on the perspective of farmers,it understands the fertilization amount,yield,coverage area,income,and conventional fertilization yield of the intelligent fertilization system.349 included routine fertilization data,and 272 soil samples were collected and analyzed.Comprehensively used GIS,META analysis methods,statistical analysis and other disciplines,combined with spatial kriging interpolation methods to analyze farmers ’wishes and fertilization preferences,explored the impact of farmers’ fertilization models on the application and promotion of intelligent fertilization systems,and determined the cotton field output ratio The optimal fertilization method,a regional recommended fertilization model for base fertilizer and top dressing was established.In summary,the following main conclusions are drawn:1.Through the analysis of 349 routine fertilization data:(1)the average output of farmers using the intelligent fertilization system is 391 kg/mu,and the average output of farmers using conventional fertilization(without the intelligent fertilization system)is 366 kg/mu,which is a difference 25 kg/mu,an increase of 6.8%,reaching a significant difference.(2)Compared with conventional fertilization,the use of intelligent fertilization systems has increased yields and reached significant differences.Further analysis,the factors leading to the insignificant increase in yield are:soil pH>8.5,soil texture is stony soil,distribution areas of Bozhou and Bazhou,fertilizer application ≤50 kg/mu.2.An analysis of 404 yield data using the intelligent fertilization system:(1)75.43%of farmers choose a fertilization range of 50-90 kg/mu,which objectively reflected the farmers’ tendency in the application of fertilizer.(2)43.6%of the peasant households applied bottom fertilizer with an average yield of 384 kg/mu;56.4%of the peasant households did not apply the bottom fertilizer and the average yield was 377 kg/mu.It reflects that farmers’ willingness to not apply base fertilizer is higher than to apply base fertilizer.The two samples were analyzed by two-sample ANOVA,and the difference was not significant.(3)71 farmers using intelligent fertilization systems in southern Xinjiang,accounting for 17.6%,with an average fertilization amount of 89 kg/mu,and an average yield of 337 kg/mu;333 intelligent fertilizer systems in northern Xinjiang,accounting for 82.4%,with an average fertilization The amount was 79.5 kg/mu,and the average yield was 389 kg/mu.Farmers in northern Xinjiang have significantly different fertilization rates and yields in cotton planting from southern Xinjiang,indicating that northern Xinjiang’s production and planting technology is superior to southern Xinjiang.3.By analyzing the fertilization amount and yield data of users of the intelligent fertilization system,the fertilizer effect function(regressive analysis of one quadratic equation)is obtained.Further analysis shows that the recommended fertilization amount in South Xinjiang is 111 kg/mu,and the expected yield is 355.1 kg/mu.The output ratio is 3.2;the recommended fertilization rate in northern Xinjiang is 149 kg/mu,the expected output is 414.5 kg/mu and the output ratio is 2.8.