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Potassium bicarbonate has widespread use in crops, especially for neutralizing acidic soil. [11]Potassium bicarbonate is an effective fungicide against powdery mildew and apple scab, allowed for use in organic farming.
In 2015, the first government standards for testing were proposed in Colorado's legislature, when potency and microbial testing became mandatory in the state. [11] [12] [13] Colorado cannabis testing laboratories, such as AgriScience Labs, are regulated by the Colorado Department of Revenue's Marijuana Enforcement Division and the Colorado Department of Public Health and Environment. [14]
Epidemics occur quickly due to the fast-growing nature of the fungus. After the new strain was discovered and began to destroy spinach fields, testing began in the 1980s with fungicides to control the disease. Research showed that metalaxyl was effective, reducing yield loss from 43% to 1% in treated fields. [153]
The test is relatively simple and inexpensive, and typically involves placing the test sample in a solution of 5% potassium hydroxide and 95% ethanol. [21] After approximately ten minutes, samples with CBD exhibit a violet/purple/pink color. The test is specific to CBD and does not react to THC.
The above photo shows the positive results of the number 2 Marquis reagent presumptive drug test when used with a sample of opium. It is the primary presumptive test used in Ecstasy reagent testing kits. It can also be used to test for such substances as opiates (e.g. codeine, heroin), and phenethylamines (e.g. 2C-B, mescaline).
Base-cation saturation ratio (BCSR) is a method of interpreting soil test results that is widely used in sustainable agriculture, supported by the National Sustainable Agriculture Information Service (ATTRA) [1] and claimed to be successfully in use on over a million acres (4,000 km 2) of farmland worldwide.
Soil acidification is the buildup of hydrogen cations, which reduces the soil pH. Chemically, this happens when a proton donor gets added to the soil. The donor can be an acid , such as nitric acid , sulfuric acid , or carbonic acid .
Cultivation of cannabis is the production of cannabis infructescences ("buds" or "leaves"). Cultivation techniques for other purposes (such as hemp production) differ.. In the United States, all cannabis products in a regulated market must be grown in the state where they are sold because federal law continues to ban interstate cannabis sales.