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Lethbridge Herald Newspaper Archives

- Page 21

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The Lethbridge Herald (Newspaper) - January 22, 1974, Lethbridge, Alberta TuMday, January tt, 1974 THE LETHBRIDQE HERALD Research Station report Sewage effluent may help irrigation by DR. JIM BOLE Pint NMritiwiit Municipal sewage effluent may be an asset rather than a threat to the environment. Water from sewage lagoons at Taber with a population of has been used for the past three years to sprinkle irrigate 310 acres of forage crops. The Lethbridge Research Station has test plots on the site to study the effects of the effluent on plant growth and to establish limits beyond which the soil or gnxmdwater might be adversely affected. We have been particularly concerned about the nitrates in the effluent since they can move freely through the soil profile and cook) result in ex- cessive levels of nitrates in the groundwater. Tozicity problems could arise in forage crops or in the groundwater and algal blooms might develop in water systems fed by. the groundwater. Our research has shown that most forage crops will use about 200 pounds of nitrogen per acre in a growing season. Analyses of the effluents show they contain between 10 and 30 parts per million nitrogen; thus, to reach 20 pounds of nitrogen per acre, more than tt inches of effluent contain- ing 20 parts per million would have to be applied. We applied up to 66 inches containing 20 ppm to our plots and have found no evidence of excess Citrates in the groundwater. These rates of application are unreasonably high but were used to bring out any potential adverse effects of the effluent Field application of more than 30 inches of effluent would exceed the infiltration and drainage capacity of most soils so that the water table would be raised and manage- ment made difficult. Many environmentalists have expressed a concern about phosphates as pollutants. Micronutrients and heavy metals could reach toxic levels in the soil or plant material if industrial effluent with high concentrations of. these were applied. Analysis of the effluent from Taber snows that it does not contain dangerous concentrations of any of these dements. Faecal coliform bacteria, which are present in the effluent, have not been found on samples of the forage or in groundwater taken from the site. 268 Baler Overhauled USED HAY EQUIPMENT '1450 '1950 '3750 '975 '850 '1350 '450 '350 '2000 '1400 H. 269 Baler, super sweep, pickup, overhauled 273 Baler overhauled............... Baler, 1 year old M.F. No. 9 Baler, overhauled No. 10 Baler, overhauled No. 12 Baler, overhauled J.D.No. 14 Baler, overhauled pop-up bale loader 2m Bale Wagon, overhauled Bale Accumulator and Bale Fork MISCELLANEOUS D. 301 Fertilizer Distributor wheels 1 ton capacity 2 row Beet Harvester cpt and wiper....... 1_M. F. 97 Tractor, rubber like new, power steering Melroe 3 point Hitch, 20' harrow draw bar............ '750 '2500 4F Plow, 16" bottoms, hyd. and rubber Krause 298 9' Chisel plow, 1 Ext. 3 pt. hitch '450 '450 '700 WE HAVE MANY MORE USED ITEMS TOO NUMEROUS TO LIST Milliken Farm Supplies Ltd Phone 223-4437 Taber and Island Implements Phone 545-2121 Bow Wand ransportatlon Ltd. amoral Bulk Commodity Hauling DECK TRAILERS 614-4thStTMtS. SER VICE ISN'T OUR OUR BUSINESS Phona 327-05TI The Carpet People's 1974 ANNUAL "Un-Sale" Did you ever notice that year after year at this time everyone has Sales..Year-end Sales, after Christmas Sales, New Year Sales, you name it, everybody does it. Not us. Not the Carpet People. No Sir! But for this New Year we are going to have the Greatest Un-Sale ever held in Lethbridge and for this coming year we are going to sell our carpets at wholesale prices just like we have been all along. The Carpet People' located in Towfte Country" Turnituie Atoo to (a toeMtom) Edmonton, Ntodtetaw Hat, Cranbrook, SMkaloon OpM dally to p.m. Deposit Will Hold Free Parking Delivery Free Storage Thurtday Friday a.m. to t p-m. M2 13th Smot North Phono 3M-11S1 Charges Master Charge Lease Plan Free ;