What is the best time to apply sulfur? | AdvanSix Ammonium Sulfate

Ask the Agronomist

AdvanSix’s agronomy experts are available to answer your questions about how to get the most out of your ammonium sulfate investment. Mercedes Gearhart has overseen agronomic research at AdvanSix for more than 20 years, and has a wealth of knowledge about fertilizer use efficiency and improving crop yields. Check out the questions asked below or ask your own question.

rss-subscribe
What is the best time to apply sulfur?
It depends on the crop in question as well as the form of sulfur used. While small grains need sulfur early in the season to promote tiller formation, in the case of canola sulfur is more critical at the time of flowering and seed set; and in the case of modern corn hybrids and soybean varieties, sulfur needs are significant both early in the season as well as post-flowering. Regarding sources, elemental sulfur sources may need up to three seasons to oxidize, depending on environmental conditions, while sulfate sources, like ammonium sulfate, are readily available. At-planting applications of sulfate sources tend to be more efficient than pre-plant applications, since the latter provide more chances for leaching loss. As for in-season applications of sulfate sources, they can be more or less efficient depending on the amount and distribution of rainfall relative to timing of application and crop uptake pattern.

Comments

Add a Comment

Your email address will not be published. Required fields are marked *

(Comments maximum 255 characters only)

Enter Verification Code *

<< Back to Questions
What's this?

This is secure information. Please, Log in or Sign up to view - it's free!