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Use Adequate Nitrogen ,The amount of nitrogen needed will deoend upon (1) the nitrogen level of the sojl. (2) the amount and analysis of fertilizer used, (31 what cror* was plowed under and (4\ whether or not manure Was used. For a 100-bushel corn cron, there must be available aonroximately 140 pounds of nitrogen when it is needed. A general rccommndation would b to apply 20 to 120 pounds of nitrogen per acre, depending upon the soil need. T On fine textured (clavl soils, all of the nitrostfti above the row fr»nlication mav either be. plowed under or worked Wo the. seedbed
r>1->ntinsr with the other fertiliser. This method oaves iust as wood results as side-dressing. On I'ohter ' soils in Piedmont, sidedress with nitrogen when corn -is knee hi ah. In eastern Virginia on coarse textured (sandv) soils, the nitroeen above the row application should be used as a side-dressing throueb the period of cultivation Where manure used.—‘Ten tons of high-oualitv manure will add, about 80 to 100 pounds of nitrogen to the soil. A 10 ton application of high quality, manure with 500 oounds of 20% super-phosnhate added, plus a row application of 100 to 300 pounds of i compete fertilizer on soils with a high fertility may be sufficient for the com crop. On soils of mediums or low fertility, the'fertilizer application should be from 400 to 600 pounds per. acre in addition to the* reinforced manure, The,use of 20 to 40 pounds of additional nitrogen may be beneficial unless the soil has a high fertility level. If com begins to turn yellow any time before last cultivation, use nitrogen "immediately.
Legume Turned.— If a good stand and 12 to 18 inch growth of Crimson clover, Vetch or Red clover is turned, 500 to. 700 pounds of a complete fertilizer such as 5-10-5 or 4-12-12, or equivalent, may? be needed.
Following well fertilized stands of alfalfa or Ladino clover, 200 to 300 pounds of 5-10-10, or 4-12-12 to tire acre in the row at planting plus 20 to 30 pounds of nitrogen will likely be needed.
Red clover or Iespedeza stubble where hay has been removed or grazed will not add a great* deal of r\itrogen. Use An Adapted Hybrid
Plant a ■variety of com hybrid adapted to your county or locality. Adapted hybrids are available in
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