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Lethbridge Herald Newspaper Archives

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Lethbridge Herald, The (Newspaper) - September 5, 1972, Lethbridge, Alberta 4 THE LETHHIDGE HERALD Tuesday, Stptcmtm 5, 1572- COMBINE TIRE SALE 14x9x26 Your Headquarters For Your Tire Needs TRIMBLES TIRE SUPPLY LTD. BLAIRMORE 562-2743 AND LETHBRIDGE 327-2007 Fall irrigation requirements part of eight-year study By H. E. HOBBS Agricultural Engineer Lelhbridge Row arch Station Few farmers question the benefits that can be obtalaed from fall irrigation, but In the fall it has not always been easy to determine whether ir- rigation is really required on a PROVINCIAL Cnlpas, regional director for southern Alberta for the Al- Iwrta department of agricul- ture extension division has been named director of the division. He will make his home in Edmonton. He first started work with the depart- ment as associate district ag- riculturist at Taber before becoming district agricultur- ist there. In 1969 he was pro- moted regional director. He comes from a farm back- ground in the Tilley region. ITIDTDRS I LETHBRIDGE ARE NOW ACCEPTING FACTORY ORDERS ON 1973 CHRYSLER, PLYMOUTH and DODGE TRUCKS AT 1972 PRICES UNTIL 1973 PUBLIC ANNOUNCEMENT DATE. ORDER BEFORE PRICE INCREASES. SALES OPPORTUNITY Exceptionally good opportunrtiw to sell 1973 Chrysler, Plymouth Cors and Truckf. Require hard working. Intelligent young so'eimcn. Previous experience KJd necMSdry. Polltenest, oppearante and good attitude e must. Contact Sato gr., Lome Franz ot 327-1591. mOTORS 7lh AVC. S. LETHBRIDGE Ph. 327-1591 particular field. An eight-year study recently completed at the Lethbridge Research Station should help in making this de- cision. Several fields of corn, sugar beets, barley, and sweet clover were h-ri gated in such a way thai by fall their soil moisture content varied widely. Their moisture levels ranged from very dry (no available soil moisture) to quite wet (70 per cent of the moisture they could Fall, winter, and spring precipitation was recorded and the soil moisture content was measured again the following spring. The very dry fields stored about one-third of (he overwin- ter precipitation, which in southern Alberta amounts to about six Inches. Consequently, only two inches of. this precipi- tation was stored in the soil. This is not nearly enough to re- plenish the water supply in a dry field and an early irriga- ton would be required. The soil that was wet in the fall stored only four per cent of the moisture received during the winter; thus, additional water from a fall irrigation would be largely wasted. Fields with intermediate soil moisture levels in the fall con- sewed eight to IB percent of the overwinter precipitation, depending on how dry they were hi the fall. The amount of water stored was directly re- lated to the soil moisture tent in the fall. As a general guide fall Ir- rigation is desirable if a soil contains less than half of the available soil moisture at har- vest time. Such fieds am usually those that have grown a cereal or forage crop. Fiekta of potatoes or sugar beets that have been adequately watered usually contain more than hall of tlie available water they can hold and should not require a fall irrigation. The "feel" method can used to indicate when the soil moisture content is about SO per cent of available and Lrrl. gation is required. At this mois- ture content a loam soil will form a firm ball when squeezed in the hand; a sandy soil will form a louse ball that crumbles readily; and a clay soil will rib- bon out when rubbed in the palm of the hand. As much care should be taken when fall irrigating as when irrigating a growing crop. The same object applies to irrigate only enough to wet the soil to the depth of the root zone. Excess irrigation not only is wasteful but also can contribute to salinity prob- lems. When your water system lets yon down... CALL YOUR MCOZZI DEALER! t thirsly cow is apt (a bullish about an empty water (rougli. And she'd have legitimate beef if it's because of a faulty water system, because you could have bought dependable Jacuzzi equipment to begin with. Then you would ALWAYS Nave water when she needs it But it's not too late. We tan oner you a pump tailor-made for your system, or a syslem tailor-made for your needs both of them backed, of course, by Jacuzzi's 40 years of experience in developing newer, better water systems. So if waler system problems have you hollering calf rope, fioof it on down to see us. We won't jive you a bum steei! JACUZZI SUBMERSIBLES FOR EVERY WEU.1 Ji cuiii's slj te sub. mersible row hat a brawny six-Inch liolher! Both offer quality, perioinunee and lelabiliEy proven in BiousardsodnilalUllons around Ihe tvorld. Iacu7i! backs each .one witri uncontfi- lionjl 10-yeat excbanja plan and ojie-jea; warranty. AvaflabFo Now nt INDUSTRIAL SUPPLY LTD. 461h Avt.S.E. CALGARY PVon. 243-5551 149 Stafford Driv. UTHMtlDGi 377-1571 or tfe -OLIVER KAIER- you ;