Field

Litter rate (Mg・ha⁻¹)

Inorganic N (kg・ha⁻¹)

Inorganic P₂O₅ (kg・ha⁻¹)

Management

Y6

0

139

37

Reduced tillage, corn-wheat/oats-hay, traditional high rate inorganic fertilizer.

Y13

4.5

56

0

Reduced tillage, corn-wheat/oats-hay, poultry litter plus supplemental N if needed.

Y10

6.7

49

0

Reduced tillage, corn-wheat/oats-hay, poultry litter plus supplemental N if needed.

W12

9.0

47

0

Reduced tillage, corn-wheat/oats-hay, poultry litter plus supplemental N if needed.

W13

11.2

19

0

Reduced tillage, corn-wheat/oats-hay, poultry litter plus supplemental N if needed.

Y8

13.4

0

0

Reduced tillage, corn-wheat/oats-hay, poultry litter.

SW12

0

0

0

Native pasture, no grazing, single annual hay harvest.

SW17

6.7¹

0

0

Pasture, grazed until 2010, poultry litter compost applied 2011-2012 at 6.7 Mg・ha⁻¹.

Y14

6.7 - 13.4²

0

0

Hay harvested each year, poultry litter applied 2001-2007 at 13.4 Mg・ha⁻¹ and 2011-2012 at 6.7 Mg・ha⁻¹.

W10

6.7³

0

0

Hay harvested each year until 2010, grazed from 2010-2012, poultry litter applied 2001-2007 at 6.7 Mg・ha⁻¹.