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D5LR (5% dextrose in lactated Ringer solution) D50 – 50% dextrose in water; The percentage is a mass concentration, so a 5% glucose/dextrose solution contains 50 g/L of glucose/dextrose (5 g per 100 ml). This usage is imprecise but widely used, as discussed at Mass concentration (chemistry) § Usage in biology. Glucose provides energy 4 kcal ...
A 1997 US government report said that Roundup is 15% POEA while Roundup Pro is 14.5%. [14] Since POEA is more toxic to fish and amphibians than glyphosate alone, POEA is not allowed in aquatic formulations. [15] [14] [16] Non-glyphosate formulations of Roundup are typically used for lawns that glyphosate would otherwise kill.
In 1940, his work with indoleacetic acid and naphthaleneacetic acid indicated that "growth substances applied appropriately would kill certain broad-leaved weeds in cereals without harming the crops," [11] [12] though these substances were too expensive and too short-lived in soil due to degradation by microorganisms to be of practical ...
In 2012, Charles Benbrook reported that the Weed Science Society of America listed 22 herbicide-resistant species in the U.S., with over 5.7 × 10 ^ 6 ha (14 × 10 ^ 6 acres) infested by GR weeds and that Dow AgroSciences had carried out a survey and reported a figure of around 40 × 10 ^ 6 ha (100 × 10 ^ 6 acres). [197]
[5] [6] Herbicides are used to kill weeds, especially on pavements and railways. They are similar to auxins and most are biodegradable by soil bacteria. However, one group derived from trinitrotoluene (2:4 D and 2:4:5 T) have the impurity
The triketone herbicides were found to be effective on a wide range of commercially-important weed species and to have both pre- and post-emergence activity. [9] Mesotrione was chosen for development (by Zeneca Agrochemicals under the code number ZA1296) because it controls a wide range of broad-leaved weeds that compete with maize and can also suppress some annual grass weeds that may be ...
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