Title: Method for preparing soil in rice field
Application Number: 98122506 Application Date: 1998.11.11
Publication Number: 1252924 Publication Date: 2000.05.17
Approval Pub. Date: Granted Pub. Date: 2001.12.05
International Classifi-cation: A01B79/00
Applicant(s) Name: Zheng Tingxue Address: 836003
Inventor(s) Name:
Attorney & Agent: qiao tongxun
Abstract:
     A method for soil levelling in large area field includes such steps as ploughing field, planing and raking soil, ridging to form ridge-bordered beds and scraping level within every bed. For said ridging step, various contour lines are measured and marked at first, and then the soil is ridged on contour lines. The level difference between adjacent contour lines is 3-5 cm and the zoned area enclosed by adjacent contour lines is 500-100 sq.m. If water is poured in beds after mecanically levelled, water surface is used as level measuring. It features high effect on soil levelling.
Time: 14