In 1906 the farm area was almost equally divided between " dry " farming and farming under irrigation, three-fourths of the wheat produced was grown without irrigation, and the dry farming was very successful with the comparatively new and valuable crops of durum, or macaroni wheat, and Russian barley, which is used in straw for winter feed to sheep and neat cattle.
The fertile northern plateaus, the Camas and Nez Perce prairies and the Palouse country - a wonderful region for growing the durum or macaroni wheat - until 1898 had no market nearer than Lewiston, 50-70 m.
The variety tenax includes four sub-races, vulgare (common wheat), compactum, turgidum and durum (see below).
At any rate, it is certain that, as a general rule, the hard wheats are almost exclusively cultivated in hot, dry countries, the spelt wheats in mountainous districts and on poor soil, turgid (durum forms) and common wheats in plains or in valleys - the best races of wheat being found on rich alluvial plains and in fertile valleys.
?yhJ durum) and Polish wheats (T.
The durum (wheats are specially employed in Italy for the fabrication of macaroni.
The growth of durum (macaroni) wheat is also increasing, but is hampered by the uncertainty of market, which is for the most part foreign.