Cloze: Complete the paragraph by filling in the missing terms.

6HC9L2.2 Farming Innovations: Intercropping

Early Olmec Farmers: Farming Innovations: Intercropping

The Olmec civilization began in the coastal lowlands of what is today eastern Mexico. By the early 1500s B.C. the Olmecs had begun planting maize, beans, squash, and other crops in the rich soil along the banks of the area's rivers. Olmec farmers planted their maize, beans, and squash together. The bean vines grew around the stalk, or stiff stem, of the maize. The squash vines spread out on the ground between the stalks. The bean plants gave the soil nitrogen, an important nutrient that the maize and squash needed. By intercropping, or planting different crops together, Olmec farmers made the best possible use of the small amount of fertile soil they had.

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