The Algona Upper Des Moines from Algona, Iowa on May 16, 1957 · Page 48
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The Algona Upper Des Moines from Algona, Iowa · Page 48

Algona, Iowa
Issue Date:
Thursday, May 16, 1957
Page 48
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-fft ii i -""-Tail I r'" .A:' ^vSxSKKViKfis* CHQOSE,THE PIPE THAT FITS YOUR FARM NONA/I TWO GREAT ALCOA IRRIGATION PIPES One of Alcoa's <wo reliable lines of irrigation pipe wfflfityourfarm,bdpyoucash in on profit-making irrigation opportunities. • Alcoa®. Lite-Line, a brand-new Alcoa Pipe, islighter than ever, gives new ease of handling in the field. Its tough new aluminum alloy will stand all normal irrigation requirements. Alcoa lite-Line is -welded for extra in tenor smoothness and diameter uniformity. This gives yon full-flow irrigation with minimum friction loss. It'&alclad for greater corrosion resistance. 'Alcoa Standard is the seamless Alcoa Pipe with full-thickness -walls which pioneered portable irrigation. Extra dent resistance adapts it to even the most demand- ingBrrigationjobs. Alcoa Standard will give you full performance at rated capacity. For either pipe, and for qualified irrigation engineering, see your dealer in Alcoa Pipe. Look for the distinctive Alcoa markings on Alcoa Pipe. • A sprinkler irrigation system which Walter P. Raw], Gilbert, South Carolina, installed on his farm paid for itself the first year through increased yield and quality of the peach crop and provided bonus benefits the second and third years of operation in 1955 and!956. Peach yields rose from 400 to 500 bushels per acre after Mr. Rawl installed his system, which uses Alcoa Standard Irrigation Pipe. Your Guide f o theBestin Aluminum Value Q Send information about Alcoa Aluminum Farm Roofing. Q S*nd information obouf Alcoa Aluminuni farm Gate. .^ Aluminum Company «f America 21S7-E Alcoa Building, Pittsburgh 19, Pennsylvania Hea»e «md me D Alcoa', Two Great .moanon Pip*,, *«w brochure, Q HpeBnw to Pro», irrigation booklet. O FARMS D DEAIER . D STUDENT : j Addrax_ CBy<mdState_ HERE'S HOW TO MAKE IRRIGATION PAY llDWEST farmers are showing an increasing interest in irrigation and there are - some good reasons. Recent dry years have severely cut crop and pasture yields in. much of the western Corn Belt. Today's lightweight portable sprinkler irrigation systems make it practical to irrigate in many areas where it was hot considered before. The high costs of leveling and permanent ditches are not involved. There are several things to make sure of before getting an irrigation system, however. ,One of the first items is. making sure that you have an adequate and dependable supply of water. Water needs are measured in terms of acre-inches, which is the amount of water needed to apply one inch of water to one acre. For example, corn may require 3 acre-inches of water in addition to the rain that falls. For 40 acres you would need 120 acre-inches. Assuming that 30$ of the water evaporates in the air, you would have to apply 4!» acre-inches in order to get the needed 3 inches. This amount on 40 acres amounts to 170 acre- inches of water and there are 27,154 gallons per acre-inch. This means a total of 4,616,180 gallons of water must come from a lake, river or well. The well would have to put out about 450 gallons per minute to supply one acre-foot per hour. Maybe the above discussion has suggested one other thing to you. That is the need for a capable engineer to help you design your irrigation system for the particu- • lar situation that exists on your farm. The pump, the amount of the various sizes of pipe, the size and land of sprinkler heads to use, necessary pressure and the spacing of laterals are all things 'to consider. If possible, plan to buy your complete system from one dealer — one who will engineer it and stand back of his work. Where To Use Irrigation Its''generally agreed that irrigation should be used on high value crops. It pays especially well on potatoes and other vegetables and is often used on alfalfa where the farm is producing for the, cash hay market or for a dehydrating plant. Irrigating corn will generally pay if you can increase yields an average of 25 to 30 bush- els per acre. On a sandy loam soil that tends to be drouthy, it may be very easy to consistently get this kind of increase. For corn, the soil must basically be fairly productive and you should definitely use fertilizer in order to get best results. Higher value crops may be irrigated profitably in even lighter soils than sandy loams. Soybeans will respond well to irrigation and it is easy to move the pipes across bean fields. Usually a farmer buys the system to irrigate com or some other crop and then ends up using it on soybeans at least part of the time. Many dairy farmers are very pleased with the'results they get from irrigated pastures. To make best possible use of the high production, you may want to use rotation grazing so feed is not wasted. Grass silage can be made from any strips not needed for pasture. When To Use It If you buy an irrigation system, plan to use it every season. When kept only as insurance against extreme drouth, it will not pay out.' Fixed costs, such as depreciation, go on whether the system is used or left in the shed. However, almost every year there is a "drouth" of some degree in June, July or August. At that time, the good operator •\yill get going with irricra- tion. The biggest mistake is to keep hoping it will rain and let soil moisture content get low right at the time that crops have The greatest need. Increase Fertilizer Use Water is only one of the things needed for high yields. Lack of plant food can .cancel out many of the possible benefits of irrigation. It's like buying a new high- powered car and then trying to run it on kerosene. . For instance, in one test with irrigated plots of orchardgrass, the application of 100 pounds of actual -nitrogen increased the output per acre by 2,690 pounds in the period from May through September. Certainly, if you plan to irrigate corn, you will want to fertilize enough to produce 100 bushels per acre or more. Also, stands should be somewhat thicker than where you don't irrigate.

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