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Unformatted text preview: 3 Lectures 14, 15, and 16 name for our Indian corn.) Milpa culture remained unchanged for 3000 years. Milpas were 215 miles from dwellings. Forest were cleared, trees burned, large trees rotted. The earth was turned over with a digging stick ( coa ). The maize was planted in March in holes 4 to 5 inches deep. Milpa cultivation was operated as a collective but was not as advanced as Inca agriculture. No fertilizer was used except human feces. [The Incas had bird manure (guano), llama offal, and limited irrigation.] In temperate zones, beans and squash were put in the same hole-the maize acted as support for the climb- ing beans. Note: maize and beans complement to form a complete protein; maize alone causes de f ciencies in the essential amino acid lysine and beans alone are de f cient in the sulfur-containing amino acids (cysteine and methionine). The mixture of beans and tortillas (corn pancakes) make a complete protein food. Beans and maize also complement agriculturally with maize providing a support for beans, and beans, a N-...
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