萧县玉米密植滴灌水肥一体化技术要点OA

The key measures of integrated drip irrigation and water fertilizer technology for maize planting were summarized and analyzed in Xiaoxian,Anhui Province.In terms of variety selection,certified high quality varieties suitable for dense planting,lodging resistance,and mechanized operations are chosen,with seed coating or chemical treatment applied.In terms of land preparation,land preparation quality was improved through precise straw management and deep tillage and loosening,combined with precision seeding technology,laying the foundation for dense planting.During sowing,wide-narrow row configuration and shallow-buried drip irrigation were adopted to ensure precise water and fertilizer supply and promote uniform,robust seedling emergence.For fertilization management,balanced application of nitrogen,phosphorus,potassium,and zinc,along with staged topdressing,was implemented to meet the demands of key growth stages.For disease and pest control follows an integrated"one-spray,multiple-promotion"strategy,combined with soil sealing and stem-and-leaf weed control.During harvesting,appropriate delayed harvesting is practiced to increase 1 000-grain weight,and grain direct harvesting and supporting drying technologies are promoted to achieve full mechanization.Demonstration planting in 2024 resulted in large-scale balanced yield increase,improved resource use efficiency,and synergistic development of grain production and ecological protection.This article provides a reference for the large-scale promotion and application of integrated drip irrigation and water fertilizer technologies.