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深松土壤,打破犁底层,加深耕作层是农业增产措施之一,是耕作制度中的重要组成部分。我国有悠久的深耕历电,在战国时代,已认识到深耕的益处,并趋向深耕。从一些古书中记载:“其深殖之度,阴土必得”一语看来,当时已知深松土壤加深耕层能起到熟化底土的作用,认为深耕才能丰产。现代国内外一些学者也主张实行深松打破犁底层、熟化底土层。
Subsoiling soil, breaking plow bottom, deepening tillage farming is one of the measures to increase production, farming system is an important part. Our country has a long history of deep plowing and power. In the Warring States Period, the benefits of deep plowing have been recognized and tend to deepen. It is clear from some ancient books that “the depth of its deep-seeding, the attained of the clay” is the phrase. At that time, it was known that deepening the soil and deepening the plowed layer could play the role of curing the subsoil. Some scholars at home and abroad also advocate the practice of deep plow to break the plow bottom, maturing the bottom soil.