The conventional tillage system, such as harrowing, weeding by dig-ging and tillagerotation, etc.
中耕除草、深翻轮休等传统耕作制度，常常造成严重的水土流失。
2
The influence of different tillage and fertilization methods on Mn deficiency in wheat in soil with rice-wheat rotation was studied in Sichuan province.
利用田间试验研究了不同耕作施肥措施对四川水早轮作土壤小麦缺锰的影响。
3
The hydraulic reversing plough has the advantages of small rotation radius, flexible rotation, leveled soil plowing, good tillage effect, high plough frame intensity and high operation efficiency.