LONG-TERM EFFECTS OF INTENSIVE CULTIVATION ON SOIL QUALITY IN THE POTATO-GROWING AREAS OF NEW BRUNSWICK (CANADA) AND MAINE (U.S.A.)

Abstract

Reviewing the research conducted in New Brunswick (Canada) and Maine (U.S.A.), this paper discusses the unfavorable effects of stone removal on potato yield, soil temperature, moisture, compaction and erodibility of soil. Data presented also show that continuous cropping of potatoes is detrimental to soil structure and soil fertility.