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ARS Home » Research » Publications at this Location » Publication #118685
Title: FIELD EVALUATION OF ANHYDROUS AMMONIA DISTRIBUTION MANIFOLDS

Author
item BOYD, PAUL - IOWA STATE UNIVERSITY
item HANNA, H - IOWA STATE UNIVERSITY
item BAKER, J - IOWA STATE UNIVERSITY
item WHITE, MIKE - IOWA STATE UNIVERSITY
item Colvin, Thomas

Submitted to: ASAE Annual International Meeting
Publication Type: Abstract Only
Publication Acceptance Date: 7/12/2000
Publication Date: N/A
Citation: N/A

Interpretive Summary:

Technical Abstract: Anhydrous ammonia distribution manifolds were tested under field conditions to evaluate their ability to evenly distribute to each outlet on the manifold. Experiments were conducted in August and November 1999 and March 2000. Each manifold tested was evaluated at two application rates, 84 kg/ha (75 lb/ac) and 168 kg/ha (150 lb/ac). Of the manifolds tested, the Vertical-Dam (SH), Rotaflow, and John Blue FD-1200 all yielded C.V.'s less than 10% at the 168 kg/ha rate. Flow was lower with the Vertical-Dam (SH) than other manifolds at the high rate. For the 84 kg/ha rate, the Vertical-Dam (SH) and the Rotaflow consistently performed with C.V.'s less than 7%. Results showed generally decreasing variation with increased application rate.