Premium
Response of Corn to Small Amounts of Fertilizer Placed with the Seed: IV. Comparison of Dry and Liquid Forms 1
Author(s) -
Baweja A. S.,
Bates T. E.
Publication year - 1971
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/agronj1971.00021962006300030008x
Subject(s) - dry matter , dilution , nutrient , agronomy , chemistry , fertilizer , yield (engineering) , greenhouse , zea mays , biology , materials science , physics , organic chemistry , metallurgy , thermodynamics
Powdered and granular fertilizers containing 13.3, 23.1, and 11.0% N, P, and K, respectively, were prepared along with water solutions of the same material containing 10.5 and 4.4% P. These fertilizers were banded with the seed of corn ( Zea mays L.) in greenhouse trials in which respiration rate, axis length, emergence, dry matter yield, and N, P, and K content were measured. No differences in nutrient availability were found between liquid and dry fertilizers studied. Granular and powdered materials were equal in toxicity. They were more toxic to corn seedlings, as measured by axis length, emergence, or dry matter yields, than the less concentrated liquid materials applied at rates providing the same total quantities of plant nutrients. Use of dilute (low‐analysis) fertilizers is probably not a practical way of reducing toxicity because of the amount of dilution required.