Effects of variable rates of sulfur on the quality of putting green bentgrass
- R. L. Goss
Sulfur deficiencies seriously retard the growth of plants, including turfgrasses. This element is important in many reactions, some of which are: 1) synthesis of certain vitamins, 2) synthesis of the amino acids cystine, cysteine, and methionine which are essential components of protein, 3) formation of nitrogenase enzyme, and 4) formation of ATP sulfurylase. Fertilization at high rates, especially with nitrogen, greatly increases the need for sulfur and may induce serious sulfur deficiencies. Research reported in this paper indicates that sulfur applied at 56 and 168 kg/ha per year at various N, P, and K levels greatly enhances color and certain quality factors of bentgrass turf. Phosphorus applied at 86 kg/ha per year significantly increased Poa annua invasion at all N levels. Sulfur applied at 168 kg/ha per year produced better turf with less Poa annua regardless of N and P levels. Sulfur applied at 56 kg/ha per year stimulated growth of both bentgrass and Poa annua. Additional index words: Cystine, Cysteine, Methionine, Nitrogenase enzyme, ATP sulfurylase, Poa annua.Please view the pdf by using the Full Text (PDF) link under 'View' to the left.
Copyright © 1974. . Copyright 1974 by the American Society of Agronomy, Inc. and the Crop Science Society of America, Inc., 5585 Guilford Rd., Madison, WI 53711 USA