Chalk point cooling tower project: cooling tower effects on crops and soils. postoperational report no. 1, volume 2. Final report May 1975-April 1976

Technical Report · Tue Jun 01 04:00:00 EDT 1976

OSTI ID:6278943

Mulchi, C L; Wolf, D C; Foss, J E; Armbruster, J A

This report contains summaries of experiments involving the effects of simulated salt drift on corn, tobacco and soybeans which were conducted during the summer of 1975 at the Tobacco Experimental Farm near Upper Marlboro, Md. Brackish water utilized in these studies was obtained from the Unit No 3 cooling tower at Chalk Point Generating Station opened by PEPCO. The water, which varied in total salinity from 8.6 to 14.0 ppt, was applied as 100 micron droplets for five days per week for eight weeks at rates of 0, 17.1, 34.2 and 51.3 1/ha/day. When treatments were terminated, yields and chloride contents of cured tobacco were found to be increased by treatments. Also contained in this report are results from studies concerning the effects of nitrogen sources on the response of tobacco to soil chloride additions. Trends for increased yields and values were found with increased soil chloride additions and for nitrate nitrogen. Leaf burn was negatively correlated with leaf chloride levels. Data on the movement of NaCl through soils and the effects of salt-sprayed soybean residue on soil respiration rates was presented and discussed.

• Research Organization: Maryland Univ., College Park (USA). Water Resources Research Center
• OSTI ID: 6278943
• Report Number(s): PB-284078
• Country of Publication: United States
• Language: English

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