The invention discloses a double-
cropping straw-returning farming method for wheat and maize, comprising the following steps: (A),
lofting a
ridge surface; (B), ploughing a
ridge furrow; (C), spreading base
fertilizer; (D),
sowing the maize; (E), returning the wheat straws to the field; (F), furrow deepening and
hilling; (G), cleaning the furrow and covering the seeds; (H), managing the field; (I), burying the straws; and (J), ploughing and planting the wheat. Summer maize is planted in the
winter wheat stubbles; the method is free of
tillage and holes, and rational in close planting; each
ridge is sowed in
drill in two rows; the wheat
straw is covered between the rows of the maize ridge surface; the maize
straw is collected in the ridge furrow, buried and returned to the field; the water and soil is conserved; the environment is protected;
fertility is collected and water is stored; the
fertility is increased and the soil is improved; the production of wheat and maize is stable and high; in a 5-year period, the ridge furrow moves towards the same direction; the ridge surface at the field edge is irregular; other ridge surfaces are standard so that the ploughing layer of the
full field can be 30cm deep; the soil organic matters are largely increased so that the method is a farming method for improving middle / low-production field and providing high-production field; and the
economic benefits, the
social benefits and the ecological benefits are increased.