Premium
Field Response of Corn to ZnSO4 and Zn‐EDTA Placed with the Seed 1
Author(s) -
Martens D. C.,
Hawkins G. W.,
McCart G. D.
Publication year - 1973
Publication title -
agronomy journal
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.752
H-Index - 131
eISSN - 1435-0645
pISSN - 0002-1962
DOI - 10.2134/agronj1973.00021962006500010045x
Subject(s) - zinc , loam , zea mays , agronomy , chemistry , grain yield , field experiment , yield (engineering) , wheat grain , soil water , metallurgy , materials science , biology , ecology , organic chemistry
Zinc deficiency of corn ( Zea mays L.) is generally corected by band or broadcast application of Zn. This field investigation was conducted on Westmoreland silty clay loam to determine if placement of a small amount of Zn in a band with seed would serve as an alternative procedure for correcting the deficiency. Treatments compared in the study included various levels, placements, and sources of Zn. Each method of Zn application under study increased corn grain yield as compared to the check. Corn grain yields were similar for 26.88 kg Zn/ha applied as broadcast ZnSO 4 and for 0.34, 0.67, or 1.34 kg Zn/ha as Zn‐EDTA, or 1.34 kg Zn/ha as ZnSO 4 , applied in a band in contact with the seed. Higher corn grain yields were obtained with 26.88 kg Zn/ha as ZnSO 4 broadcast and disked into the soil, than with 6.72 kg Zn/ha banded beside the row at seed depth. The levels of Zn banded with seed did not affect corn populations. This investigation indicates that band application of a small amount of Zn with seed could be used as a procedure for correcting Zn deficiency of corn. The procedure probably would be most applicable where it is desirable to minimize Zn accumulations in soil.