Effects of lime and applied Mn on plant Mn, growth and chlorophyll concentration of Tifway II bermudagrass

Journal Article · Wed Jan 01 04:00:00 EST 1986 · Commun. Soil Sci. Plant Anal.; (United States)

DOI:https://doi.org/10.1080/00103628609367782· OSTI ID:6943701

McCray, J M; Sartain, J B

A glasshouse study was conducted to determine effects of lime and Mn applied to three Florida soils on plant Mn, growth, and chlorophyll concentration of Tifway II bermudagrass (Cynodon dactylon x Cynodon transvaalensis). Four replications of three lime rates (0, 1000, and 2000 mg CaCO/sub 3//kg as dolomite and Ca(OH)/sub 2/ for Astatula fine sand and Pompano; 0, 2000, and 4000 mg CaCO/sub 3//kg as dolomite and Ca(OH)/sub 2/ for Myakka fine sand and three Mn applications (none, 10 mg Mn/kg as MnSO/sub 4/, and 5 mg Mn/kg as MnEDTA) were used in a randomized, complete block, factorial design. A wide range of plant Mn concentrations existed across treatments for each soil. Differences in plant Mn concentration did not cause significant differences in growth of chlorophyll concentration. The critical plant Mn concentration was not reached, but it appeared to be below 20 mg Mn kg for bermudagrass. Models for prediction of plant Mn concentration using soil pH and extractable soil Mn were obtained. The applications of MnSO/sub 4/ and MnEDTA each resulted in increased plant Mn under acidic soil conditions. Neither Mn application resulted in increased plant Mn concentration in grass grown on Pompano fine sand with soil pH values of 7.0 or above.

• Research Organization: Univ. of Florida, Gainesville
• OSTI ID: 6943701
• Journal Information: Commun. Soil Sci. Plant Anal.; (United States), Journal Name: Commun. Soil Sci. Plant Anal.; (United States) Vol. 17:11; ISSN CSOSA
• Country of Publication: United States
• Language: English

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