Cultivar

Fertilizer source

Harvest frequency

Slope (m)

Y-intercept

Alamo

Commercial fertilizer

1

−0.088 ab*

1.109 b

2

0.047 a

0.253 c

Poultry litter

1

−0.126 abcd

1.270 ab

2

−0.212 cd

1.266 ab

Cave-in-Rock

Commercial fertilizer

1

0.131 abcd

1.190 ab

2

−0.196 bcd

0.873 bc

Poultry litter

1

−0.126 abcd

1.852 a

2

−0.106 abc

0.909 bc