Table 10. Comparison of agricultural land use group median loading rates by Kruskal-Wallace test Group Median (lb/ac/yr) sm. and sm. soil fallow full cotton legume fall Grain–fallow rotation grain–fall unspecified silage–fall silage–fall cropland rotation rotation Grain–forage Wheat Misc. Mixture Misc. Corn, Corn, Corn, Corn, Corn, Corn-soybean Cotton, Nonlegumes Parameter Pathway grain grain Fallow-bare Forage, Forage, Soybean, Past. Pasture Small Sm season established rotation rotation fallow fallow TP Surface 0.95 1.16 1.29 0.97 1.22 0.54 0.25 0.12 1.70 0.30 0.51 ad ade a ac a ac be b a bce cd TN Surface 16.33 13.61 1.96 0.62 0.54 5.13 1.78 a a b de ce b bcd Shallow 16.75 1.90 1.98 7.69 3.28 6.16 gw a bd bc c bc cd Surface 1.59 2.94 3.84 2.89 1.50 0.21 3.48 0.77 0.08 0.13 NO3 c ac ae ad c f b cdf f f Tile drain 29.05 15.26 0.89 29.44 a ab b a TSS Surface 206.5 3192.2 1490.8 95.6 55.4 258.7 638.4 cd a a cde e abcde b Total Surface 889.5 215.9 138.3 34.8 331.0 sed. a ac cd bd ad Note: Within rows, group medians followed by the same letter(s) are not significantly different, P < 0.05.
Table 10. Comparison of agricultural land use group median loading rates by Kruskal-Wallace test Group Median (lb/ac/yr) Parameter Pathway Corn, grain–fall fallow Corn, sm. grain Corn, silage–fall fallow Corn, silage–fall sm. grain Corn, unspecified Corn-soybean rotation Cotton, cotton rotation Fallow-bare soil Forage, Nonlegumes Forage, legume Misc. rotation Mixture Soybean, full season fall fallow Past. cropland and Pasture Small Grain–fallow Sm Grain–forage established Wheat rotation Misc. rotation TP Surface 0.95 ad 1.16 ade 1.29 a 0.97 ac 1.22 a 0.54 ac 0.25 be 0.12 b 1.70 a 0.30 bce 0.51 cd TN Surface 16.33 a 13.61 a 1.96 b 0.62 de 0.54 ce 5.13 b 1.78 bcd NO3 Shallow gw 16.75 a 1.90 bd 1.98 bc 7.69 c 3.28 bc 6.16 cd Surface 1.59 c 2.94 ac 3.84 ae 2.89 ad 1.50 c 0.21 f 3.48 b 0.77 cdf 0.08 f 0.13 f Tile drain 29.05 a 15.26 ab 0.89 b 29.44 a TSS Surface 206.5 cd 3192.2 a 1490.8 a 95.6 cde 55.4 e 258.7 abcde 638.4 b Total sed. Surface 889.5 a 215.9 ac 138.3 cd 34.8 bd 331.0 ad Note: Within rows, group medians followed by the same letter(s) are not significantly different, P < 0.05.
draft_loading_rate_report_(ag_forest)20150113.docx