METHOD FOR TILLAGE OF SOIL FOR TREE PLANTS Russian patent published in 1997 - IPC

FIELD: agriculture. SUBSTANCE: method involves plowing washed-out soils by turning soil layer through 180 deg so that upper humus layer is laid for depth at least equal to depth of penetration of temperatures critical for plant roots and not exceeding depth of wetting; providing annual slitting of soil at humus laying depth. EFFECT: increased efficiency in protecting soil from erosion, simplified method and improved quality of soil.