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This article in AJ

  1. Vol. 72 No. 1, p. 175-177
    Received: June 20, 1979

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Portable System for Overhead Irrigation of Small Plots1

  1. Larry G. Heatherly and
  2. L. H. Ginn2



A tractor-mounted apparatus designed for overhead irrigation of small plots has been constructed with 1.9-cm diam. thin-walled electrical conduit. The 3OO-cm long assembly has ten 1.3-cm diam. polyvinyl chloride lateral water lines clamped across the 200-cm width of the framework. Water is supplied to the apparatus by a power-take-off pump from a front-mounted tank on the tractor and is forced through 0.3-cm diam. holes spaced 15 cm apart on the bottoms of each of the 10 water lines. The front-mounted tank is graduated in 75-liter increments and allows water to be applied to a 300 ✕ 200-cm surface area in multiples of 1.25 cm. An in-line pressure regulator is used to vary rate of water application. The system, which can be easily dismounted from the tractor, can irrigate 8 to 15 four-row plots 6 m in length depending on both rate and amount of water to individual plots.

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