Research On Agronomic Technique Of Machine-harvested Cotton In Corps Division Of Shajingzi Land Reclamation Area Agricultural Technology

Cotton is the main economic crops and pillar industry in agricultural first division, At present the whole process of production except picking process of harvesting cotton had achieved mechanization. Developed a set of new technology will be have important significance to Agricultural harvesting skills according to the different natural conditions and management levels of cotton production in different areas.Spacing test setting of Machine mining mode,different drip irrigation belt laying tests of machine mining mode,Defoliant screening test were carried out at agricultural division two group and agricultural division water irrigation based on the climate characteristics of ShaJingZi agricultural areas and levels of cotton production management.The results are as follows:The best plant row spacing pattern was selected by the analysis of yield characters and machine performance measurement in agricultural division ShaJingZ.The meodel are (66+10) cm x12 cm and (64+12) cm x 11 cm.Different drip irrigation belt laying tests were carried out under (66+10) cm x12 cm and (64+12) cm x 11 cm that were suitable to climate.The results showed that the model of Laying membrane three zones and blet laid in between the rows of narrow can produce the optimal economic benefits under the row planting distance configured (64+12) cm x 11 cm.Pick up cotton machine defoliation theripener screening test showed that the most stable, and the economic performance and comprehensive performance better defoliant formula of 180 ml/hm2 spit off lung + 1500 g/hm2 ethrel+ with treasure 750 ml/hm2, spraying defoliant the best temperature for daily average temperature in 18～25 ℃, optimum spraying period September 15～25, boll opening rate of 40% when spraying. The most economical and practical, comprehensive performance is good, but need to strictly grasp the timing of applying pesticide defoliant formula of 90 g/hm2 shrink festival amine + 1500 g/hm2 ethrel, spraying the defoliant the best temperature for daily highest temperature is not lower than 25 ℃, the highest temperature and continuous 7 day after applying pesticide is not lower than 24 ℃, the average daily temperature is not lower than 19.5 ℃, the optimum spraying period September 15～20, boll opening rate of 40% when spraying.