Open AccessDo crops' responses to sulfur vary with its forms?
Author(s) -
Goyal Diksha,
Franzen David W.,
Chatterjee Amitava
Publication year - 2021
Publication title -
agrosystems, geosciences and environment
Language(s) - English
Resource type - Journals
ISSN - 2639-6696
DOI - 10.1002/agg2.20201
Subject(s) - potash , ammonium nitrate , fertilizer , agronomy , ammonium sulfate , sugar beet , chemistry , leaching (pedology) , sulfur , urea , sugar , ammonium , environmental science , soil water , biology , food science , organic chemistry , chromatography , soil science
Abstract The most common formsof S fertilizers in the northern Great Plains are ammonium sulfate (AS), ammonium thiosulfate (ATS), and elemental S (ES). Among these, AS is preferred over the others because of its readily available SO 4 2– form, and it can be blended with other dry fertilizer granules, but SO 4 2– is prone to leaching. Recently, fertilizer industries introduced micronized (<100 μm) S (MS) fertilizer formulations to hope that the smaller elemental S particles would increase the rate of S oxidation. Across the Red River Valley of North Dakota and Minnesota, field trials were conducted to compare the response of corn ( Zea mays L.), spring wheat ( Triticum aestivum L.), and sugar beet ( Beta vulgaris L.) to the application of different forms of S (AS, ATS, mono ammonium phosphate or MAP‐10S [5% ES + 5% AS], MAP + MS, AS + MS, muriate of potash [MOP] + MS, urea ammonium nitrate [UAN] + MS). Spring wheat only had a significant positive response to S forms, with ATS having the highest grain yield in 2019, significantly higher than AS and AS + MS. In 2020, UAN + MS had the highest grain yield, only higher than the control. Corn and sugar beet did not respond to addition of or to S forms. Corn, sugar beet, and spring wheat yields were indifferent to supply and forms of S in the Red River Valley.