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Correcting Iron Deficiency in Corn with Seed Row–Applied Iron Sulfate

^a Dep. of Agron., Kansas State Univ., Manhattan, KS 66506
^b Dep. of Biol. and Agric. Eng., Kansas State Univ., Manhattan, KS 66506
^c Southwest Res. and Ext. Cent., Kansas State Univ., Tribune, KS 67879, Kansas State Univ., Manhattan, KS 66506
^d Southwest Res. and Ext. Cent., Kansas State Univ., Garden City, KS 67846

View larger version (9K): [in a new window]   Fig. 1. Average grain yield as a function of increasing FeSO4·H2O for all seven site-years. The r2 was determined by using the average grain yield from every treatment.

View larger version (13K): [in a new window]   Fig. 2. Grain yield as a function of increasing FeSO4·H2O at responsive sites [SE14 and Finney (1999) and SW29 and NW33 (2000)] and nonresponsive sites [Scott (1999) and Finney and SE14 (2000)]. The r2 was determined by using the average grain yield from every treatment.

View larger version (33K): [in a new window]   Fig. 3. Monthly precipitation amounts for Hugoton, KS (Stevens County) (Weather Data Library, Kansas State Univ., Manhattan).