结合美国防治耕地水土流失的技术现状及研究进展,详细介绍一种土壤条件改良新方法――土壤印痕装置Terra Star。从理论上探讨该装置系统的产品特点和技术原理,并通过耕地水土流失、大豆直播栽培等对比试验加以验证。理论分析和试验结果表明:该装置与同类方法或装置相比较,具有极大的先进性和优越性,对有效保护耕地具有积极作用。 Combined with the status and research progress of soil and water loss prevention and control of cultivated land in the United States, Terra Star, a new soil condition improvement method, is introduced in detail. The product features and technical principles of this system are discussed in theory and verified by contrastive tests such as soil and water loss of cultivated land and direct seeding of soybean. Theoretical analysis and experimental results show that: Compared with similar methods or devices, this device has great advancedness and superiority, which plays an active role in the effective protection of arable land.