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34 - 35.page12 - NRES 201 Intro to Soil Science Lec 34-35...

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Unformatted text preview: NRES 201 Intro to Soil Science Lec. 34-35 3/17/2010 Practical Soil Fertility Management Ch. 13 Illinois N Recommendations (old) Recommendation 1.2 X yield goal with adjustments for: 7 a previous legume 7 manure 7 late planting Soybean N is not recommended .\c\\ Remuulucndalion. illl[v.e1e1c.\lcll\1i”1..ngUII.1.1\l.llc.cdue‘1si\1111'111111)e‘1lll.llc..lsp.\ N Adjustments for C orn Legume credits: N reduction (' 1b/A Pr ' wus crop Plants/sq ft Alfalfa or clover Example: N Recommendation Assume 0 Corn following soybean 0 Yield goal : 190 bu/A Calculate o 190 bu/A X 1.2 lb N/bu : 228 1b N/A (soybean credit) 7 40 1b N/A 188 1b N/A 12 ...
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