设施蔬菜根区土壤分层施肥机设计与应用
Design and application of soil layered fertilization machine for facility vegetable root zone
冯磊 1杨雅婷 2刘旭 1刘志良 1郭玉林 1李妍3
作者信息
- 1. 天津市农业发展服务中心,天津 300061
- 2. 农业农村部南京农业机械化研究所,江苏 南京 210014
- 3. 天津市农业科学院,天津 300380
- 折叠
摘要
在农业生产中,化肥有不可替代的作用,过量施用是造成农业面源污染问题不断加剧的重要原因之一.为满足温室狭小空间作业条件,研制了一种设施蔬菜根区分层施肥机.其中,Y字型旋耕刀可以更好地破碎土壤,旋耕深度可达20 cm以上;分层施肥机构可以在土壤耕层 3～18 cm形成圆柱状肥区,有效减少设施蔬菜种植中化肥的施用量,避免由于侧边施肥和作物根部趋肥性对蔬菜根系生长带来的影响,同时保证肥料持续就近供应植株,提高肥效,达到减施增效的目的.该机械在青萝卜种植中进行了试验示范,施肥效率比传统人工作业提升 54.3%,化肥施用量减少 37.8%,青萝卜产量和营养物质含量略有增加.
Abstract
In agricultural production,chemical fertilizers play an irreplaceable role,but their excessive application is one of important reasons for worsening problem of agricultural non-point source pollution.A mechanized technology and equipment for layered fertiliza-tion in root zone of facility vegetables was studied and tested.Application of this technology and equipment can meet working conditions of greenhouse narrow spaces.Design of a Y-shaped rotary tiller could better break through soil,and depth of rotary tillage could reach more than 20 cm.At the same time,a layered fertilization mechanism could be designed to form a cylindrical fertilizer area in soil cul-tivation layer of 3 to18 cm,effectively reducing amount of fertilizer used in facility vegetable cultivation,avoiding impact of side fertil-ization and crop root fertilization on vegetable root growth,and ensuring continuous supply of fertilizer to plants nearby,improving fer-tilizer efficiency,and achieving goal of reducing application and increasing efficiency.This machine has been tested and demonstrated in cultivation of green radish,with a 54.3%improvement in spraying efficiency compared to traditional manual operations,a 37.8%re-duction in fertilizer usage,and a slight increase in green radish yield and nutrient content.
关键词
设施蔬菜/分层施肥/施肥机/施肥机械化/设施农业Key words
facility vegetables/layered fertilization/fertilizer applicator/fertilization mechanization/facility agriculture引用本文复制引用
基金项目
国家重点研发计划项目(2023YFD2300705)
出版年
2024
国家科技期刊平台
NSTL
万方数据