枞阳县糯稻—小麦轮作栽培技术OA

Based on the production practices in Zongyang County,Anhui Province,this paper summarized the key technical points of the glutinous rice-wheat rotation cultivation system.For glutinous rice cultivation,fine land preparation is conducted before sowing,with either dry tillage or puddled tillage adopted according to soil moisture conditions.Early sowing at an appropriate time is recommended,with the seeding rate controlled at 45-60 kg/hm2.For wheat,a relay interplanting(inter-seeding)method in paddy fields is adopted,with a co-growth period of 7-10 days.Stress-resistant varieties are selected and seed dressing with paclobutrazol is applied.The optimal sowing period is from mid-to-late October,with a seeding rate of 250-325 kg/hm2.Post-sowing weed control follows a"one sealing,one killing"strategy,using herbicides such as pretilachlor and bensulfuron-methyl according to field conditions,with staged control of grasses,broadleaf weeds,and sedges.In terms of water and fertilizer management,glutinous rice adopts a fertilization regime of"promotion at the early stage,control at the mid-stage,and supplementation at the late stage",with application of special-purpose compound fertilizer,urea,and potassium chloride,combined with water layer management.For wheat,sufficient base fertilizer is applied before sowing,supplemented by seedling fertilizer,winter fertilizer,and jointing fertilizer at separate stages,with foliar fertilizer topdressed during the grain-filling stage,accompanied by a three-ditch irrigation and drainage system for waterlogging prevention and drought resistance.Pest,disease,and weed control adheres to the principle of prevention first,with emphasis on seed treatment.Targeted chemical applications using agents such as Jinggangmycin,tricyclazole,and phenamacril are implemented for critical pests and diseases including sheath blight,rice blast,planthoppers,as well as wheat Fusarium head blight and aphids.This paper provides a reference for the annual rotation of glutinous rice and wheat.