The influence of treated municipal wastewater and commercial fertilizer on total crude fiber, total protein, and amino acid content in wheat hay (Triticum aestivum L.).

摘要

When wheat hay was grown with wastewater with no additional water or fertilizer, it contained more fiber than did hay produced with well water and suggested amounts of nitrogen (N), phosphorus (P), and potassium (K) and also more than did hay grown with well water plus N, P, and K from commercial sources in amounts equal to those found in wastewater. Wheat hay grown with wastewater alone and hay produced with well water plus N, P, and K in amounts equal to those in wastewater had similar protein contents, which were higher than the protein content of hay grown with well water plus suggested amounts of N, P, and K. Alanine, glycine, and tyrosine were present in higher concentrations in wheat hay grown with wastewater than in hay grown with well water plus suggested amounts of N, P, and K. Wastewater had no effect on the concentrations of leucine, proline, and phenylalanine in wheat hay grown in 1969 and 1970. Hay grown with wastewater in 1969 contained more threonine than did hay grown with well water and suggested amounts of N, P, and K. Treated municipal wastewater was an effective source of irrigation water and plant nutrients for the production of high quality hay from wheat in the Southwest.