E-mail: order@tigersul.com

Web Site: www.tigersul.com

Tiger-Sul Products (Canada) Co.

6444—42nd Street SE Calgary, AB T2C 2V1 Phone: 1.877.299.3399 Phone: 1-403-279-2616

Tiger-Sul Products LLC

P.O. Box 5 Atmore, AL 36504

Phone: 1.800.239.3647

Research Project : To Study the effect of fall application of various sulphur sources and the leaching of the various sources.

Researcher : Howard Banks, S.P. McGrath, IACR - Rothamsted, funded by Stefes Plant Protection.

Trial Info:

• Crop : Ryegrass• Soil Type: Sandy Loam• Sulphur Rate : 50kg/ha actual Sulphur broadcast• First year of a three year study• All trials subject to normal environmental conditions in each respective area.

The purpose of this study is to study the effect of fall applied sulfur with various sulfur sources in regards to leaching, and the effect on the overall plant yield. A Lysimeter was used as part of the study to compare the leaching losses from the various sources. See graph #1.

Graph #1

Results :

The study showed the impact of the various sulphur forms in regards to leaching. The ammonium sulphate trial showed very high losses due to it’s high solubility in water. The loss of ammonium sulphate was 70% in year one of the study.

Tiger 90CR Sulphur minimized leaching losses and also showed the greatest yields over the check and ammonium sulphate treatments.

Sulphur Leaching Study Rothamsted, England

Woburn Leaching Study

01020304050

Control Tiger 90 A.S.

S Loss Kg/ha

Leaching losses

Ammonium Sulphate 70% Leaching loss

E-mail: order@tigersul.com Web Site: www.tigersul.com

6444—42nd Street SE Calgary, AB T2C 2V1 Phone: 1.877.299.3399

Tiger-Sul Products LLC P.O. Box 5 Atmore, AL 36504

Phone: 1.800.239.3647

Tiger-Sul Products (Canada) Co.

Yield responses from various sulfur fertilizersRye Grass 50kg / ha Sulphur application

0123456789

Control Tiger 90 A.S.

Yield t/ha

0.900 t/ha - 12.5% Increased yield

Discussion:

The effect of leaching is dramatic with soluble nutrients on soils that are prone to leaching. With only two leaching events 70% of the ammonium sulphate was lost into the drainage water, while the Tiger 90CR sulphur released sulphur from it’s insoluble form to the plant available sulphate form throughout the growing season. Tiger 90CR losses were minimized with only 3.9 kg lost compared to 35.2 kg lost with the ammonium sulphate formulation

As a result of the effectiveness of Tiger 90CR to minimize leaching, the yield of the rye grass increased by 12.5% or 0.900 t/ha. Sulphur is a key component for several plant processes. One of the major roles is the formation of protein within the plant. Nitrogen requires the presence of sulphur to form protein. The uptake of nitrogen is also improved with increased sulphur fertility. Recent studies by the TSI have shown improved forage quality with sulphur applications. Increases in vitamin A, vitamin E and protein have been documented. The reduction of plant nitrates has also been documented with sulphur use.

As the sulphate form is readily leachable within the soil, sulphur within the plant is not mobile. As a result sulphur deficiencies will show up on the new growth on a plant. This is why sulphur needs to be available to the plant throughout the growing season. “Tiger 90CR Sulphur converts to plant available sulphate throughout the growing season, as the plant requires sulphur. If the sulphate was all available too quickly before the plant needs it, the loses to the Environment can be enormous. We have demonstrated for decades that Tiger 90CR not only provides an efficient season long sulphur source, but also is very good for our Environment. ” Jeff Ivan - Manager of Marketing & Business Development.

“Making Good Crops Better”

For more information on Tiger 90CR, and Tiger 50CR sulphur contact Tiger-Sul products.