Full TGIF Record # 36937
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Author(s):Chen, L.; Dick, W. A.; Streeter, J. C.; Hoitink, H. A. J.
Author Affiliation:School of Natural Resources; Depatment of Horticulture and Crop Science; Department of Plant Pathology, The Ohio State University, Ohio Agricultural Research and Development Center, Wooster, Ohio
Title:Ryegrass utilization of nutrients released from composted biosolids and cow manure
Source:Compost Science & Utilization. Vol. 4, No. 1, Winter 1996, p. 73-83.
# of Pages:11
Publishing Information:Emmaus, PA: JG Press
Keywords:TIC Keywords: Nitrogen uptake; Soil amendments; Composts; Lolium; Nutrient absorption; Animal manures; Nitrogen
Abstract/Contents:"Use of composts as soil amendments to enhance crop growth requires a knowledge of rates and amounts of nutrients released. A greenhouse study was conducted using ryegrass (Lolium perenne L.) as a test plant to evaluate this release from composts. The experimental design consisted of four blocked replicates in a complete factorial with two types of compost (wastewater treatment plant biosolids and cow manure), four application rates (1, 2, 5 and 10 percent weight of sand), and three fertilizer treaments (0, 100 mg N/kg mixture, and 100 mg P/kg mixture). Rye-grass top growth was harvested after 21 days. The regrowth was harvested three additional times. Roots were recovered after the fourth harvest. Total N uptake was significantly and positively affected by the total amount of N supplied by the compost or compost plus N fertilizer (r₂ values ranged from 0.992 to 0.999). Initial N uptake depended on the mineral N concentration in the compost and was higher from biosolids than from cow manure compost. Biosolids compost contained 10 times more mineral N and this N was primarily taken up in the first two harvests. Cow manure compost, however, provided N gradually over the entire 84 day test. In addition to N, both composts also supplied P, K, and other major and minor nutrients essential for plant growth."
ASA/CSSA/SSSA Citation (Crop Science-Like - may be incomplete):
Chen, L., W. A. Dick, J. C. Streeter, and H. A. J. Hoitink. 1996. Ryegrass utilization of nutrients released from composted biosolids and cow manure. Compost Sci. Util. 4(1):p. 73-83.
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