Common mistakes made by novices
Many novice growers make the mistake of over-fertilizing. They think that “the growing process of cannabis requires a lot of nutrients. I should keep adding to her to make her grow bigger and better, lest she lack nutrients.”, “I Her marijuana has turned yellow. It should be that the nutrition is insufficient. I will add more to her.”, “My marijuana hasn’t started to grow, I should prepare some nutrients for her, so that she can win at the starting line.”, ” What nutrients can be added to my cannabis for the whole period, I want to add it to her every day.”
Here I want to tell you novice growers that these ideas are completely wrong! Unless your soil is not good enough, all the nutrients necessary for hemp can be extracted from the soil. For an introduction on how to buy soil and nutrients, please see “Weed Grow Lesson 4: Soil control for indoor planting”.
If the soil you buy is compost soil with a nitrogen, phosphorus and potassium ratio of 20-20-20 and above, as long as the flower pot is large enough and the soil is sufficient, you can get a good income even if you don’t apply fertilizer throughout the process. The height of a well-sized flowerpot should be 1/3 of the total height of the plant, and the width should be 1/2 of the maximum width of the plant. If you want to feel that it is not big enough, it can be about 5 cm larger, with enough soil. It is enough for the first planting.
For planting novices, I suggest that you can go to the flower market for the first time to see what the particularly expensive soil looks like, and go to the flower farmers to find out why it is expensive. Then buy enough soil to fill the pots. It is not recommended to try fertilizers that you do not know about in the first planting.
Most new planters will make the outer edges of the new leaves of the plant yellow and brown. This is called “burning roots.” When a plant exhibits this phenomenon, it means that the environment you gave her is too good.
Recently, a reader occasionally showed me their planting photos and asked me what the plants are lacking or missing. Here I have to state a fact to many novice growers, that is
If you don’t care about her, she can grow better!
The mistake that most novices make is excessive attention and care. These mistakes do more damage to the plant than you do if you don’t care about it. These injuries are more deadly and cannot be reversed!
Control pH in the correct range
The most typical mistake is excessive fertilization, which is divided into mild and severe. Slightly will cause changes in the pH of the soil, making plants unable to absorb certain nutrients. The optimal pH for cannabis growth is 6-7. Lower or higher than this range will make plants unable to absorb nutrients. At this time you will find that the more you fertilize, the more nutrient the plant lacks, and the more you add it, the more it lacks. This is the performance of light excessive fertilization. The following figure can tell you how much PH is the best. Experienced growers will slowly fluctuate the pH between 5 and 7 to allow plants to absorb more various nutrients.
Severe over-fertilization can cause excessive osmotic pressure in the soil. Osmotic pressure refers to the tendency of the two parts of aqueous solution separated by a semi-permeable membrane that the water with less solute will penetrate through the semi-permeable membrane to the part with more solute, thereby keeping the concentration of the two parts of aqueous solution consistent. Simply put, near the semi-permeable membrane similar to the roots of plants, salty water will want to become lighter, and lighter water will want to become salty. The soil with a particularly high concentration will vigorously absorb the moisture from the roots, and the roots with a relatively low concentration will make the soil moisture. Then the plant was “burned”.
So before trying to fertilize, learn to adjust the pH of the soil. After confirming that the plant is at the appropriate pH, you can see if she lacks nutrients; slowly let the pH fluctuate to see what nutrients she lacks.
The simpler method is to use tap water for 3 hours for watering 3 times and mineral water for 3 waterings. There are mineral water plants near every big city. In order to make their water different from tap water, these manufacturers will change the PH value. Those with high mineral content will reduce minerals and those with low mineral content will increase. The mineral water plants are porters of nature, moved from the suburbs near the sales point.
An effective method requires a pH pen, a reagent to adjust the pH of the soil. First measure the pH of the water, and then dilute the pH reagent to be added with 2L of water. Then test the PH, it cannot be lower than 5 or higher than 7.5. Slowly water the plants with this solution to change the pH of the soil.
The tap water where I live has a very high pH. My usual method is to soak a few slices of lemon before watering to lower the pH.
Keep the soil in a healthy pH range, and then consider whether to add fertilizer.