Naturally occurring forms of vitamin K include a number of vitamers known as vitamin K 1 and vitamin K 2 (Figure 1). Vitamin K 1 or phylloquinone is synthesized by plants and is the predominant form in the diet. Vitamin K 2 includes a range of vitamin K forms collectively referred to as menaquinones. Most menaquinones are synthesized by human intestinal microbiota and found in fermented foods and in animal products.
Hereâs what it likes: 1  A lot of nitrogen in vegetative phase. 2  Less nitrogen, more phosphorus during flowering phase. 3  A PH range between 5.8 and 6.3. About 6 is the best.  A balanced ratio of soil fungus to bacteria. Because marijuana prefers slightly acidic soil, it may be a little on the fungal side.
Most soils are slightly acidic, that is, slightly less than pH 7, which is neutral. Very rainy areas, such as the Pacific Northwest where I live, tend to have very acidic soils, which is great for rhododendrons but isn't the best soil for tomatoes. Tomatoes grow best in soils that are just slightly acidic, from a pH of 5.5 to 6.8. Garden centers sell home pH testers that are adequate for determining your soil's pH level, if you don't want to send it out for testing. It's not difficult to modify your soil's pH level.