The Algona Upper Des Moines from Algona, Iowa on September 12, 1957 · Page 31
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The Algona Upper Des Moines from Algona, Iowa · Page 31

Algona, Iowa
Issue Date:
Thursday, September 12, 1957
Page 31
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can MAKE you MORE MONEY EXTRA BUSHELS Correct adaptability, high shelling percentage, corn that clings to the stalk until picked, big yields... bred right in... All of these DEKALB CORN FEATURES add up to EXTRA BUSHELS that can, indeed, MAKE YOU MORE MONEY. DEKALB ... the top selling seed corn for 18 straight years. EXTRA GRAIN If you've had an opportunity to view a big, open, grain-heavy head of DEKALB HYBRID SORGHUM, you can well-imagine how much .EXTRA GRAIN can be harvested from a DEKALB FIELD. And, like seed corn, more farmers plant DEKALB than any other hybrid sorghum in America. I \S All over America DEKALB LAYERS are showing poultrymen that it's high, steady production, year after year, that really counts. DEKALB's fine, white-egg-laying pen won the 3-year-average, seventh California Random Sample Egg Laying Test... averaging 254 eggs per pullet, (based on the number of pullets at one week of age). Income over feed cost for this period was $4,71 per hen. \ I \ . . S* . i : J / . The name DEKALB ;bjas become synonymous with a many years of service to Ameri- behind this is a Jong record of tomer patjpfactiQQ ..'. a record based qn full value !4 W4 pwfe'ffwna? of product. Let the DEKALB t* mrT.'Wff ^^ pignof Good Farming and >«*•%; ' • r K%, INC,, DDCAll, |UU icaasfctsSsi-,. 1 'sE»l^ v *',- jr • -•« *,••*? . I •—>-.' •»»* '- f» * •.. • . y* " ,/^' ^ •rf- L&,?<*:', f,< isiLS^- ^*»** ;/ APPLYING nitrogen this fall can save you labor, reduce fertilizer storage problems and eliminate one operation during next spring's planting rush. But to do the job right you must — Use the right type of nitrogen Consider soil temperatures when applying . Take into account the soil type and other soil factors Know the normal winter rainfall pattern. THE RIGHT NITROGEN Many kinds of mitrogen carriers can be used for fall- appjication. Basically there are two types of nitrogen in the, fertilizers, nitrate and ammonium. The nitrate form leaches out of the soil with drainage water and the ammonium form doesn't. Some kinds, such as urea, do not contain either of these types. However, if soils are warm and microorganisms can work, they are first converted to ammonium form. So the same principles apply. * Potential teachability of nitrogen fertilizers: Carrier A-N-L Ammonium nitrate Ammonium sulfate Ammonium* sulfate-nitrate Ammo-phos Anhydrous ammonia Calcium cyanamid Cal-Nitro Nitrate of Soda Solution 37 Uran 32 Urea %N 20.5 33.5 20.5 26.0 16.0 82.0 20.0 20.5 16.0 37.0 32.0 45.0 % Leachable 50 50 • 24 50 100 32 24 — SNon- leachable *» t 50 50 100 76 100 100 100 50 __ 68 76 100 University of Illinois • SOIL TEMPERATURES MUST BE LOW Soil microorganisms change the non-leachable forms of nitrogen into the nitrate type (nitrification) which can be leached out of the soils. It is best to wait until soil temperatures drop to around 50 degrees before applying nitrogen fertilizers in the fall. Then you can be reasonably sure the microorganisms won't change the nitrogen into a leachable form. Remember soil temperatures are wannest at the surface. -Therefore if surface soil temperature is, say, 55 degrees, you can count on it being below this at 6^or 7 inches. So you could go ahead and apply it if you're plowing the fertilizer under, SOIL TYPE IS IMPORTANT * ' Water is the chief means of moving nitrate nitrogen through the soil. On soils which have permeable or open sub-soil, non-leachable. types of nitrogen fertilizers should be fall-applied after temperatures drop to 55 or 50 degrees. Clay soils, regardless of permeability, hold ammonium forms of nitrogen very satisfactorily when applied in the fall. It is always risky to apply nitrogen in the fall to sandy soils. WINTER RAINFALL MUST BE CONSIDERED In most of the western Corn Belt, winter rainfajl is not great enough to leach nitrogen below the^ 4-foot depth. This is considered to be in the root zone, However, further east and south it is possible for winter rainfall to be great enough to cause considerable leaching. In areas where tile lines run in the wintertime it is a good idea to apply only non-leachable types of nitrogen in the fall, Fall-applied nitrogen gets bacteria on the job of decaying organic residues during the fall, winter and early spring months, The decay job is essentially finished J>y the spring planting season and ample nutrients have been made available to the spring-sown crops. A secondary important benefit is improved tilth or workability of the soil after crop materials have been decayed and the by-products have been incorporated in the soil.

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