00:00Heavy deep tillage machinery drags wide plow bodies into the earth, soil layers flip upward
00:04to knee height. Everyone watching this must be wondering, is it really necessary to plow this deep?
00:09Long-term shallow surface plowing causes lower soil layers to compact and form a hard plow pan,
00:13like a rigid barrier blocking root systems from extending downward.
00:16Controlling deep tillage depth at 50 cm breaks through this hardened soil layer,
00:20allowing crop root systems to stretch downward and fully absorb moisture and nutrients from deep
00:24soil layers. Land's water storage capacity dramatically improves after deep tillage.
00:29When summer rainstorms arrive, loosened soil layers act like sponges, storing rainwater,
00:33then slowly supplying it during dry seasons, relieving drought impacts.
00:37Surface weeds, grass seeds, and pest eggs get buried deep underground.
00:41Oxygen-deprived environments make survival extremely difficult for them.
00:44Bottom subsoil flips to the surface, where sunlight exposure and frost kill hibernating pests.
00:49Overwintering insect pests, field crop residue, and organic fertilizer buried into deep layers
00:54gradually decompose, continuously generating humus, permanently improving soil fertility and
00:58laying a solid foundation for bumper crop harvests.
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