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Factors Affecting Plant Growth in High‐Zinc Medium: II. Influence of Soil Treatments on Growth of Soybeans on Strongly Acid Soil Containing Zinc from Peach Sprays 1
Author(s) -
Lee C. R.,
Craddock G. R.
Publication year - 1969
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/agronj1969.00021962006100040024x
Subject(s) - zinc , chemistry , agronomy , micronutrient , soil ph , field experiment , soil water , biology , environmental science , soil science , organic chemistry
A field experiment was conducted to study the influence of soil pH micronutrient additions and other management practices on soybean yields where peach trees had been grown previously. Decreased soybean yields resulted when either zinc sulfate or superphosphate was added to soil with a pH value below approximately 5.40. FeEDDHA improved plant growth, but did not influence soybean yields. Raising soil pH from 5.40 to approximately 6.40 with 2,602 kg/ha of dolomitic limestone increased plant growth and soybean yields. Zinc content of leaves ranged from a high of 229 ppm in acid soil to 77 ppm in limed soil. Highest soybean yields were obtained from organic matter (snap corn meal) in combination with dolomitic limestone.