Study On The Technology Of Reducing Nitrogen Fertilizer And Increasing Efficiency Of Drip Irrigation Under Plastic Film In The West Of Jilin Province

Nowadays,agriculturalist mainly focused on the research of reduction about Nitrogen fertilizer,thus,it is of great significant to investigate about Nitrogen fertilizer reduction skills.In this paper,we studied on the relations between Nitrogen fertilizer reduction and maize yield?Dried matter mass?Boron absorption and Fertilizer utilization rate in Nitrogen fertilizer reduction and mutilized organic fertilizer two ways.Opening new model of maize reduction fertilized,and have Foundation basic to Nitrogen fertilizer reduction skills in the black soil area of western Jilin Province.The research of relations between Application of Nitrogen Fertilizer under Drip Irrigation on maize and corn production shows,Corn production up to 15701.9kg/hm2 when the amount of nitrogen applied is 240 kg /hm2;The optimum yield of 187.243 kg/hm2 was obtained by linear analysis and reached the best benefit value of fertilizer and maize yield.Fertilization period when base fertilizer + jointing + tassel application of corn yield to the highest,16530.5kg/hm2;The treatment of the physiological indicators are presented in same trend,It can be explained that the reasonable application rate of nitrogen fertilizer and the proportion and time of fertilizer will significantly increase the yield of maize,the uptake of nitrogen and the utilization rate of nitrogen fertilizer,which will promote the maize yield.It is suggested that the local nitrogen application rate should be kept at 180-200 kg/hm2 and the yield can reach 15000-16000 kg/hm2.The local fertilization method can be used as base fertilizer(30%)+ jointing(25%)and tasselling(45%).corn fertilization experiment results shows,When reducing the 20% nitrogen applied,maize yield and dry matter quality did not decrease,however it has a small increase,Indicating that the appropriate reduction in nitrogen fertilizer input will not significantly affect the corn yield and dry matter.The highest accumulation rate of nitrogen appears in T1(N240)treatment,Higher than the T0(N300)treatment 0.005g/plant/d,without significant difference,It is helpful to increase the uptake and accumulation of nitrogen by maize when appropriate,Nitrogen fertilizer reduction,Appropriate reduction in fertilizer application will also increase fertilizer utilization.Which T1(N240)treatment high than T0(N300)treatment of nearly 14%.In summary,the appropriate reduction of nitrogen fertilizer can save costs,reduce environmental risk,improve fertilizer utilization,thereby increasing production.Through the corn film drip tube organic alternative fertilizer nitrogen test results shows,the highest Yield processing was S3 treatment,up to 12350.0kg/hm2,29.7% higher than the farmers used to be.The yield of each manure is also higher than that of farmers,Indicating that manure has a significant improvement in crop yields and The quality of each treated dry matter also presents this trend.The results showed that the physiological indexes of chicken manure were still higher than other treatments.So chicken manure is still the first choice for organic matter,treatment of 25% chicken manure to field more than 50% chicken manure field processing the output increased by 8.6% and Dry matter quality increased by 5.1%,fertilizer utilization increased by 4%.In summary,manure returned to the field can help the high yield of corn Of which 25% of chicken manure for the best treatment?25% chicken manure + 75% fertilizer nitrogen treatment of the physiological indicators are the highest in the treatment,the optimal treatment,recommended that local conditions fertilizered 25% chicken manure + 75% fertilizer nitrogen was best.The local fertilization method can be used as base fertilizer(30%)+ jointing(25%)and tasselling(45%).Agricultural waste and phosphorus,potassium fertilizers are one-time application of basal fertilizer.