The effects of soil tillage depth and straw recycling model on growth, yield and yield components of crop, The physicochemical properties of soil, soil water content and the trait of potential weed communities were studied from 2005 to 2006 year.
本试验田间试验于2005-2006年在江苏省南通市农业局试验基地进行。 研究不同土壤耕作深度和秸秆还田与否对水稻生长及产量构成、土壤养分状况、土壤水分变化和杂草群落动态的影响，初步明确了水田土壤耕深和秸秆还田的综合效应。
参考来源 - 直播稻田土壤耕作深度和秸秆还田的生态效应研究·2,447,543篇论文数据，部分数据来源于NoteExpress
The paper presents the principles and construction of a new apparatus for automatically measuring and recording tillage depth of rotary tiller.
本文介绍了一种新颖的旋耕机耕深自动测量和记录装置的原理和构造。
Six kinds of rotary blades with same tillage depth and same mounting Angle are designed which have the circular element scoop surfaces. The parameters of the scoop surface are discussed and optimized.
设计出六种具有相同侧切刃的等耕深、等安装角圆弧母线正切面旋耕刀，并对正切刃、正切面诸参数进行了优化和选择。
No-tillage has appropriate seeding depth and its uniformity also very good.
免耕耕作具有均匀合适的播种深度。
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