Fig. 2.

Soybean yield in response to the fertilizer treatment and crop sequence in the SCN-suppressive (S-Site) and -conducive (C-Site) sites, respectively, in 2010. The 2-yr crop sequences were Sus-Sus, Res-Sus, and Corn-Sus, where Sus is SCN-susceptible soybean and Res is SCN-resistant soybean; the first and second abbreviations represent the crops in 2009 and 2010, respectively. The bars are means and the lines on the bars are the standard error of main effect with four replicates. The different letters within a graph denote the significant differences according to unprotected least significance difference test at P < 0.05. No letter in the graph indicates no difference.