Bulletin of the U.S. Department of Agriculture Volume 446-474

Bulletin of the U.S. Department of Agriculture Volume 446-474

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This historic book may have numerous typos and missing text. Purchasers can usually download a free scanned copy of the original book (without typos) from the publisher. Not indexed. Not illustrated. 1917 edition. Excerpt: ...pipe to reach from the main to the outside of the grove. This pipe is carried from place to place as it is needed. Before the water is turned on the land several furrows are plowed in each space between the tree rows parallel to the main, and others are plowed at right angles to these. When irrigation is begun, the men start at the far end of the main line, connecting a length of the 3-inch pipe to one of the valves and lightly screwing enough 3-inch pipe together to reach the edge of the grove. The water is then turned on in furrows prepared previously. When it has run down a furrow about 125 feet it is stopped and made to flood the trees from the lower end up toward the pipe. When the trees have been well watered other lengths are unscrewed from the 3-inch pipe and the operation is repeated. When the top end of the grove is watered the same operation is repeated from the next hydrant on the main, which is situated 125 feet below. This method of irrigation has been satisfactory and seems to please the owner. Light portable pipe made of about 24-gauge galvanized iron 6 inches in diameter, instead of the 3-inch screw pipe, would have been more satisfactory, the iron screw pipe being heavy to shift. The cost of the plant is very low, but can not be stated exactly, as the material was purchased secondhand; but such a system of all new piping would be very cheap, compared with the systems in general use in Florida. A number of the systems in operation in Florida may be termed partial furrow systems. Some of these have distributing systems similar to the hose systems already described, using hose to run the water down short furrows. Most of these, however, are supplied with heads of water too small to bring good results. In some instances the...show more

Product details

  • Paperback | 334 pages
  • 189 x 246 x 18mm | 599g
  • Rarebooksclub.com
  • United States
  • English
  • black & white illustrations
  • 1236984234
  • 9781236984234