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Winter Survival Fall Lawn Fertilizer 10-0-20. There's no need to let your yard lose its shine in the winter—especially when you can get products like this to help you keep it alive.
Choosing a fertilizer blend. As a general rule of thumb, most cool season grasses require 2 to 4 pounds of nitrogen per 1,000 square feet each year, and a majority of this nitrogen should be ...
Dicamba has low toxicity by ingestion and inhalation or dermal exposure (oral LD 50 in rats: 757 mg/kg body weight, dermal LD 50 in rats: >2,000 mg/kg, inhalation LC 50 in rats: >200 mg/L). In a three-generation study, dicamba did not affect the reproductive capacity of rats.
For example, mono-ammonium phosphate fertilizer may have a cadmium content of as low as 0.14 mg/kg or as high as 50.9 mg/kg. [89] The phosphate rock used in their manufacture can contain as much as 188 mg/kg cadmium [ 90 ] (examples are deposits on Nauru [ 91 ] and the Christmas Islands [ 92 ] ).
In the 1960s in the U.S., the Tennessee Valley Authority National Fertilizer Development Center began developing sulfur-coated urea. Sulfur was used as the principal coating material because of its low cost and its value as a secondary nutrient. [3] Usually wax or polymer is added to perfect the encapsulation.
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