C#10

The ideal PPFD level for seedlings is between 100-300 micromoles per square meter per second (μmol/m²/s). This softer lighting mimics the diffused sunlight of early spring, providing enough energy for seedling-stage plants to develop their initial leaves without overwhelming them. at 48 inches from light sources, the seedlings receive around 150-180μmol/m²/s, as they grow they grow towards the higher levels of ppfd naturally. Urine is a liquid waste product as a result of our kidneys cleaning and filtering our blood. Typically, urine contains around 95% water and the rest are a mix of salts including sodium, potassium and chloride, urea, and uric acid. Due to the high water content in pee, the more you drink, the more you have to go. For a healthy person, human urine typically has a pH of around 6.2 with a range of 5.5-7.0. A person’s diet and alcohol consumption can also affect the pH of their urine. The main organic component of urine is urea, a combination of ammonia and carbon dioxide, which is the byproduct of our bodies breaking down proteins into usable amino acids. Urea is very high in nitrogen, a key ingredient to healthy leafy growth in plants. In addition to being very nitrogen-rich, urine also contains dissolved phosphorus that’s immediately available to plants, making urine a quick-acting fertilizer. If you own a dog, you may be familiar with yellow patches on your lawn where your pet has peed. Dogs and cats excrete fresh urine with a higher quantity of urea than humans do and that can more easily burn a plant upon contact. Human urine contains less urea and thus less ammonia. Despite Bear Grylls drinking urine in his popular survival shows, urine is not sterile. It picks up trace amounts of bacteria as the sterile version passes through the bladder, the urinary tract and comes in contact with the skin. Still, the health risks of using urine are very low because urine does not typically contain pathogens found in feces. Infectious diseases like cholera are spread through water sources contaminated by poop. In areas with poor sanitation, there is no way to separate solid and liquid waste which is why all untreated mixed sewage can pose significant public health risks. Only 10-15% of all nutrition you ingest is absorbed, all the rest is disposed of in the urea of urine, 95% Water, 5% Urea. Human urine consists primarily of water (91% to 96%), with organic solutes including urea, creatinine, uric acid, and trace amounts of enzymes, carbohydrates, hormones, fatty acids, pigments, and mucins, and inorganic ions such as sodium (Na+), potassium (K+), chloride (Cl-), magnesium (Mg2+), calcium (Ca2+), ammonium (NH4+), sulfates (SO42-), and phosphates (e.g., PO43-).1 A Representative Chemical Composition of Urine Water (H2O): 95% Urea (H2NCONH2): 9.3 g/l to 23.3 g/l Chloride (Cl-): 1.87 g/l to 8.4 g/l Sodium (Na+): 1.17 g/l to 4.39 g/l Potassium (K+): 0.750 g/l to 2.61 g/l Creatinine (C4H7N3O): 0.670 g/l to 2.15 g/l Inorganic sulfur (S): 0.163 to 1.80 g/l The pH of human urine ranges from 5.5 to 7, averaging around 6.2. The specific gravity ranges from 1.003 to 1.035. Significant deviations in pH3 Chemical Concentration in g/100 ml urine Water 95 Urea 2 Sodium 0.6 Chloride 0.6 Sulfate 0.18 Potassium 0.15 Phosphate 0.12 Creatinine 0.1 Ammonia 0.05 Uric acid 0.03 Calcium 0.015 Magnesium 0.01 The element abundance depends on diet, health, and hydration level, but human urine consists of approximately: Oxygen (O): 8.25 g/l Nitrogen (N): 8/12 g/l Carbon (C): 6.87 g/l Hydrogen (H): 1.51 g/l