Correlations of Soil and Hay Micronutrients Purpose: Is there a correlation between soil...
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Transcript of Correlations of Soil and Hay Micronutrients Purpose: Is there a correlation between soil...
Correlations of Soil and Hay Micronutrients
• Purpose: Is there a correlation between soil micronutrients and those in the hay crop?
Rationale for Study
• Producer’s perspective– Protein– Lower Costs– Enhance soil quality
Rationale for Study
• Agribusiness Marketing Perspective– Lower feed costs– Can sell micronutrients to producers who are
using compost– Commission for salesmen
Hay Sampling Procedure
• Collected samples from fields after hay was cut
• 7 samples collected • Hay was then dried
and sent to the Ag. Analytical Lab at Penn State
Soil Sampling Procedure• Soil samples collected in
June before hay harvest
• Soil samples analyzed by A & L Laboratories for:
• B, Ca, Cu, Fe, K, Mg, Mn, P, Na, S, Zn
• Fields with and without
compost did not differ significantly
Soil Tests
• B, Ca, Cu, Fe, K, Mg, Mn, P, Na, S, Zn
• Fields with and without compost did not differ significantly
• Soil pH 6.0-6.5
Soil and Hay Copper
Copper
1
1.2
1.4
1.6
1.8
2
2.2
2.4
2.6
2.8
6 7 8 9 10 11
Cu
HCu
Cu
All Measurements in ppm.
Soil and Hay Zinc
Zinc
1.5
2
2.5
3
3.5
4
4.5
5
5.5
14 16 18 20 22 24
Zn
HZn
Zn
Soil and Hay Calcium
Hca
0200400600800
100012001400160018002000
0.6 0.8 1 1.2
Ca
Hca Hca
Limitations of the Research
• Small sample size & small micronutrient differences among fields
• Few samples from fields without compost
• Maturity?