Phaseolus Acutifolius - Cultivation

Cultivation

Tepary beans are the most drought tolerant legume. Germination, however, requires wet soil although the plants will flourish in dry conditions thereafter. Too much water inhibits bean production. Cultivated beans have been found dating to 5,000 BC in the Tehuacán Valley in Mexico. They were cultivated by Indians by various methods, most commonly after an infrequent rain in the desert or after flood waters along a river or ephemeral stream had subsided. The tepary bean is relatively disease free, except under conditions of high humidity.

The tepary bean was a major food staple of Indians in the Southwestern United States and northern Mexico. In addition to being grown in floodplains, it was often grown alongside squash and corn, which when eaten together provide balanced nourishment thanks to the composition of an advanced protein. Growing these plants together was known as Three Sisters agriculture.

In the United States, the tepary bean was introduced to Anglo farmers in the 19th century by Tohono O'Odham (Papago) farmers. The Indian method of planting in the American Southwest was to plant three to five seeds in hills six to eight feet apart. Beans were planted in arroyos that had been recently flooded by summer rain.

Cultivation of tepary beans is possible under the most extreme conditions. The Sand Papago (Hia C-eḍ O'odham) were mainly hunter-gatherers but cultivated tepary beans and other crops when moisture made it possible for them to do so. In 1912, ethnographer Carl Lumholtz found small cultivated fields primarily of tepary beans in the Pinacate Peaks area of Sonora. In the Pinacate, with an average annual precipitation of 75 mm (3 inches) and temperatures up to 48 °C (118 °F), Papago and Mexican farmers utilized runoff from sparse rains to grow crops. In the 1980s author Gary Paul Nabhan visited this area, and found one farm family taking advantage of the first large rain in six years, planting seeds in the wet ground and harvesting a crop two months later. The most successful crops were tepary beans and a drought-adapted squash. Nabhan calculated that the cultivation in the Pinacate was the most arid area in the world where rain-fed agriculture is practiced.

Northwestern Mexico is the primary area of production for tepary beans. The tepary is also cultivated in many countries in Africa, Australia, and Asia. In India, tepary beans are an ingredient in the snacks 'bhujia' and Punjabi Tadka by Haldiram.

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