联合整地机械能一次完成翻地、旋耕、灭茬、起垄作业，可以提高效率、降低作业成本，而且，根茬粉碎还田以后，可以提高土壤有机质含量，改善土壤结构，起到培肥地力、提高粮食的作用。
The once-over tillage machines can once accomplish turning upthe rotary tillage、stubble ploughing, ridging school assignment,they can improve the efficacy , reduce the cost. After stubble ploughing,the organic soil quality contents rise,soil structure improves,the yield improves.
