Even though potassium is stratified under reduced tillage, it is apparent that roots proliferate sufficiently near the soil surface to assume adequate potassium uptake by crops.
虽然在少耕制下，土壤钾有明显的分层分布但在土表附近，作物根系发达保证作物对钾有足够的吸收。
Soil aggregate degree increased with no-tillage years, especially in the surface layer.
土壤团聚度随免耕年限的增加而增加，表层增加更明显；
For analyzing the adhesion between soil and tillage tools, the profiles of pressure on the wave bulldozing plates were calculated, and we located the position of the maximum friction on the surface.
计算了波纹板表面的压力分布，并指出在土壤与农机具粘附系统中波纹形表面摩擦力最大的位置。
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。
Treatments included conventional tillage, subsoiling, straw mulch, tied ridges, shallow pits surface and no tillage.
试验处理包括常规耕作、深松、秸秆覆盖、垄作、浅坑及免耕。
Effects of different tillage methods on saturated hydraulic conductivity and compactiveness of the surface soil;
研究了不同耕作方式对土壤物理特性、水分状况、甘蔗苗期生长的影响 。
By the further test, shallow rotary tillage or shallow harrow of the surface soil, can solve all the problems.
通过进一步试验，增加浅旋或浅耙表土作业，可解决问题。
The conservation tillage mechanism works well. It can pass through soil surface that is covered with crop straws and residues to sow seed with no-tillage and deeply spread fertilizer at the same time.
同时，保护性耕作所使用的免耕播种机，在秸秆残茬覆盖的地表工作，其性能可靠、通过性好。能实现化肥深施和免耕播种。
The conservation tillage mechanism works well. It can pass through soil surface that is covered with crop straws and residues to sow seed with no-tillage and deeply spread fertilizer at the same time.
同时，保护性耕作所使用的免耕播种机，在秸秆残茬覆盖的地表工作，其性能可靠、通过性好。能实现化肥深施和免耕播种。
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