求tillage patterns的英文解释,介绍等等.

Tillage Patterns(详见附件)An optimal tillage pattern reduces the time spent in non-productive work. One
of the most important objectives of a tillage pattern is to minimize the number
of turns and maximize the length of the tillage runs. There are several patterns
that can be used when tilling a field. These are circuitous, up and back or
headland and working in lands.

这个百度搜一下就出来了