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  2. Chemical defenses in Cannabis - Wikipedia

    en.wikipedia.org/wiki/Chemical_defenses_in_Cannabis

    Ion balance is a key factor in plant development to produce yield. Too high salt concentration in soil lowers the water potential in root tissue which becomes toxic; stunting growth and inhibiting flowering by dehydrating the plant. Stomatal closure is also a response to high salinity, leading to lowered sugar production and transpiration rates ...

  3. Lead poisoning - Wikipedia

    en.wikipedia.org/wiki/Lead_poisoning

    Between the blood lead levels of 5 and 35 μg/dL, an IQ decrease of 2–4 points for each μg/dL increase is reported in children. [42] However, studies that show associations between low-level lead exposure and health effects in children may be affected by confounding and overestimate the effects of low-level lead exposure. [83]

  4. Environmental impact of cannabis cultivation - Wikipedia

    en.wikipedia.org/wiki/Environmental_impact_of...

    Environmental impact of cannabis cultivation includes all the environmental issues which occur as a result of cannabis cultivation.. Cannabis agriculture is a massive industry in its scope and extent, yet its environmental impact is much less researched than comparable agricultural products produced at this scale. [1]

  5. Baby food labels will reveal levels of lead and other heavy ...

    www.aol.com/news/baby-food-labels-reveal-levels...

    Baby food labels will disclose levels of lead and other toxic heavy metals via QR codes, thanks to a California law taking effect January 1. ... all help microbes in the soil bind with heavy ...

  6. FDA sets limits on lead in some baby foods - AOL

    www.aol.com/fda-sets-limits-lead-baby-210654868.html

    The FDA guidance caps lead levels for children younger than 2 at 10 parts per billion for fruits, most vegetables, grain and meat mixtures, yogurts, custards and puddings, and single-ingredient meats.

  7. Cannabis drug testing - Wikipedia

    en.wikipedia.org/wiki/Cannabis_drug_testing

    Using a more sensitive cutoff of 20 ng/mL (less common but still used by some labs), the most likely maximum times are 7 days and 21 days, respectively. In extraordinary circumstances of extended marijuana use, detection times of more than 30 days are possible in some individuals at the 20 ng/mL cutoff. [7]

  8. The Most Important Marijuana Growth Chart You'll Ever See - AOL

    www.aol.com/news/most-important-marijuana-growth...

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  9. Cannabis sativa - Wikipedia

    en.wikipedia.org/wiki/Cannabis_sativa

    In soil, the optimum pH for the plant is 6.3 to 6.8. In hydroponic growing, the nutrient solution is best at 5.2 to 5.8, making Cannabis well-suited to hydroponics because this pH range is hostile to most bacteria and fungi. [citation needed]