In view of present tobacco cultivation situation and the trend of its development in our country,the type of TX-12 tobacco quantitative hole-filling fertilization machine was researched and designed, which had the functions of hole filling,root irrigation and fertilization. Through the determination of product performance and production,the machine had a precise control of liquid material for quantitative and single strain dot dressing;They also possessed various technical in novations ,such as seedling irrigations during transplanting,additional manurings before the vigo rous growth period,and foliar sprays at the later stage. This equipment's comprehensive techno logy and property index accorded with the design requirements,and it set up a stable performance even beyond 99. 99%. It possesses certain innovative features and can effectively solve the hole ir rigation and fertilization problems in tobacco planting, thereby having good promotion and appli cation value.%针对我国烟草种植现状和发展趋势,研究和设计了具有穴灌、根灌和施肥等多种功能的TX - 12型烟草定量穴灌追肥机.产品性能测试和生产试验结果表明,该机具能够精确控制液态物料,实现单株定量和点状追肥；可以完成烟苗移栽时浇水,旺长前补水施肥,后期叶面喷肥等综合作业；而且该机具各项技术、性能指标符合设计要求,性能稳定(稳定率在99.99％以上,故障率0.01％),功能完善,有效地解决了烟草种植上的穴罐和追肥问题,具有较好的推广和应用价值.
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