. Cranberries; : the national cranberry magazine. Cranberries. delaying the discharge of cranberry flood waters to the lake and thereby maximizes the opportunity for nutrient removal. Secondly, the high iron content of the ditch sediments in conjunction with the slightly acid pH of the ditch waters could account for substantial re- moval of phosphorus from the sys- tem. Additonal growing seasons will be monitored to provide a more reliable base for evaluating the effect of bed losses and the natural marsh drainage on nearby lakes. In particular, the role of iron in sediments of the ditches and
. Cranberries; : the national cranberry magazine. Cranberries. delaying the discharge of cranberry flood waters to the lake and thereby maximizes the opportunity for nutrient removal. Secondly, the high iron content of the ditch sediments in conjunction with the slightly acid pH of the ditch waters could account for substantial re- moval of phosphorus from the sys- tem. Additonal growing seasons will be monitored to provide a more reliable base for evaluating the effect of bed losses and the natural marsh drainage on nearby lakes. In particular, the role of iron in sediments of the ditches and lakes will be given primary emphasis. References Fellers, C. and W. B. Esseler. 1955. Nutrient content of vegetable crops. Univ. of Mass. Ag. Ex. Bull. 481. Gray, R. 1972. Surface water quality in drainage areas of cranberry bogs. Cranberries 37(3):8-9. Kerr, D. 1972. Phosphorus removal calculated in Oregon. Cranberries 37 (2): 6-7. Lueschow, L. A., J. M. Helm, D. R. Winter and G. W. Karl, 1970. Trophic nature of selected Wisconsin lakes. Wis. Acad. Sci. Arts Letters 58:237-264. Acknowledgement Acknowledgement Appreciation is expressed to L. L. Maltbey and M. J. Gappa for their assistance in sample collection and to the staff of the Laboratory Services Section for sample analyses. NO3-N NH4-N INDERMUEHLE DITCH o' No 0 =A< 1-i-^yv EAST-WEST DITCH g â⢠o oj \ - 8^o^\/\ //"°-°A O N D| J 1971 I I ' » I I I M A M J J A S O N DI J F M A M J J A S O N D| 1972 1973 iji i i i i i i i i i i i i i i i J FMAMJ JASOND|j FMAM 1973 JIM'S JOB SHOP For Sale RIDE-ON WATER WHEEL WHEEL-OFF RIG FLUME WORK PUMP ENGINE WORK CUSTOM BUILT MACHINERY BOG SANDERS Call Jim DiBurgo 617-947-1869 521D Thomas Street Middleboro, Mass. 02346 Figure 2. Inorganic Nitrogen Concentrations in the East-West and Inder- muehle ditches. INDERMUEHLE DITCH. EAST-WEST DITCH â 0Tq°-r-T-p â . ?-r-7-r°T-T-,°T-T-TO, , | O N D I J FMAMJ J A S O N Dl J F M A M
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