Rack Petroleum Ltd.

Organic and inorganic herbicides


Early chemical herbicides were inorganic compounds.  Observation in 1896 that Bordeaux mixture, a fungicide, also provided control of certain weeds, led to the use of copper sulfate as a selective weed killer to control charlock in cereals.  By 1900, solutions of sulfuric acid, iron sulfate, copper nitrate, and ammonium and potassium salts were known to act as selective herbicides; soon thereafter sodium arsenite solutions became the standard herbicides, and they were used in large quantities until about 1960.  Other popular inorganic herbicides include ammonium sulfamate, carbon bisulfide, sodium chlorate, sulfuric acid solutions, and formulations containing borate.  Organic herbicides began in earnest with dinitrophenol compounds in 1932.  A breakthrough occurred in the 1940s with 2,4-D (2,4-dichlorophenoxyacetic acid), a compound similar to plant hormones, which is a highly selective systemic herbicide when used in very small quantities.  2,4-D was quickly adopted to control broadleaved weeds in corn, sorghum, small grains, and grass pastures, as well as in lawns and other ornamental turf.  The phenoxyaliphatic acids and their derivatives, another major group of organic herbicides, succeeded because of their selectivity and ease of translocation.  Other groups of organic herbicides include organic arsenicals, substituted amides and ureas, nitrogen heterocyclic acids, phenol derivatives, triazines, and sulfonylureas.

What We Offer


Products

We offer crop nutrition and crop protection products at very competitive pricing.

Bulk Delivery

We offer bulk delivery of all types of fuel and liquid fertilizer like NH3, UAN, Glyphosate.

Find the Nearest Branch

You can freely use our interactive map to find the nearest office.

New Technologies

Variable Rate Technology in application services and cuttig edge technology in other fields.

24/7 Support

Our experts work extended hours day and night to serve you during busy season.

Gas-Pumps and Cardlocks

Our Cardlock Gas-pumps accept "interact" cards VISA, MasteCard or Debit cards.

Warehouses

Huge dry fertilizer storages are conveniently located in Rosetown, Biggar, Unity, Outlook.

Research Plots

Every year our prophesor with the research crew finds new interesting discoveries.

Pest Control

We offer pest control application services and products in western Saskatchewan.

what we have:


Trucks
CASE-II Spreaders
Patriot Sprayers
Happy Customers

Ready to contact?


Contact us today to order your fuel delivered to the yard! Also feel free to contact us for quote or advise!