Intercropping refers to the cultivation of two or more crops on the same field during the same growth period, with branches or sub-belts interplanting. Mixed cropping refers to the mixed cultivation of two or more crops in the same field in the same period. Intercropping refers to the planting method of inter-row seeding or transplanting of late-season crops in the later stages of the previous season's crop growth. According to the above definitions, Which of the following are mixed:. ['After planting soybeans on a field for many years, planting pasture for two consecutive years.', 'Planting 1 row of corn every 3 to 4 rows in the later stages of wheat growth.', 'Plant a row of coffee trees on a piece of land every 4-6 meters wide to form a hedge, and plant rosemary between the hedges.', 'In Africa, sometimes crops such as corn, sorghum, cowpea, millet, cassava, and potato are planted randomly and simultaneously on the same field.']