农民甚至又回到以前秋天耕耘，春天查看已耕种过两三次的土壤，以备种植玉米。
Farmers are even returning to fall tillage and in the spring may go over the soil being prepared for corn with two or more cultivations before planting.
即使在今天，已经耕种过二百年的农田，还在不断地产生出更多的石块。
Even today, farms which have been worked on for200 years keep producing more stones.
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