This text is taken from the conclusions that are on the net about how to water our marijuana or cannabis plants correctly, since there is a lot of information about it and since there is so much, it sometimes confuses.
Watering a lot is something that kills the most plants, especially small ones, we try to give the best to our plants and it turns out that we are drowning them or making it easier for fungi to eat them, let’s see what to do and what not to do so that this does not happen to us more.
Tips for watering Marijuana plants
– In the first place, we must think that when we water our plants we do not make them drink more, it is not as if you force the water on a dog, in reality what we do is put water in the dish and he will decide whether drink or not, the pot would not be the stomach of the plant, it would be “the plate” and then the plant will decide whether to drink or not, watering more does not make the plant drink more since as we see it does not enter directly into her, but it is in the pot and if she drinks it it is because it is necessary, if it is not necessary she will not drink even if we water more.
So we already have one thing clear: By watering more, the plant does not drink more water.
Keep in mind that this does not happen with nutrients and if we give it more, the plant will eat more and if we give it less it will eat less.
Aeroponic cultivation
Now we must understand how the aeroponic crop is and how it works, in this crop the roots are hanging in the air inside dark chambers where most of the roots are in contact with the air, except for the tips that are in water. :
This is the system where plants grow faster because it is where more air reaches the roots, so another very important thing to understand is that the more air in the roots, the better, here the tips of the roots are always in water, They do not rot because the water changes a lot and is highly oxygenated
The maybe 20 cm or more of root that are in the air does not dry out because although there is air around it, the water circulates inside that the roots take lower and Not only does it not hurt to be in contact with the air, but it is what is sought in this system.
Then according to this we should understand that it does not matter if the upper part of the pot is completely dry if there is moisture below and not You just have to understand that it is not bad, but that it is good that the upper part of the pot is dry because this way we make it easier for the roots to be in contact with the air.
Indoor cultivation
To correctly water the marijuana plant indoors, it is necessary to provide the right amount of water, with the correct pH and with an electroconductivity according to the stage of development in which the plant is.
As a general rule, we recommend watering indoors, every two or three days, if we water manually. If we water automatically, we will need an irrigation pump and a line for the drippers, which usually give several irrigations a day, but with little quantity.
The amount of water needed will depend on several factors, including the size of the plant, the size of the pot, humidity, heat and the phase of cultivation in which we find ourselves, since in flowering the marijuana or cannabis plant needs more water than during the growth phase.
We recommend watering with a volume of water between 10% and 20% with respect to the amount of soil or substrate:
In 5-litre pots for indoors: water with half a liter or a maximum of one liter.
To realize when we have to water it is essential to control the weight of the plant, we cannot let it weigh little, therefore we will have to control how long it takes for the plants to lose water and dry up little, but as we say that they do not reach weigh very little.
At madame grow we help you to develop an optimal crop and have a good and rich harvest, here we leave you a guide to grow marijuana indoors, and also the benefits of indoor cultivation.
Where is the air inside a pot?
– Now we are going to find where the air is inside a pot: The substrate is a more or less thick mixture of soil particles, and when wetting each granite, a film of water sticks around it, the finer the particle (more clayey) less space for air has around between grain and grain, when it gets wet all the space is occupied by water, this substrate retains a lot of water but little air, it is not recommended.
The thicker it is (sandier) the larger the gaps between grain and grain, that is more space for air and when you water there is always air in between, this substrate retains little water and always has a lot of air, it is fine as long as you can water a lot, the ideal is a mixture that retains water and air in a good proportion.
How Much Water Can a Pot Hold?
– Now let’s see how much water fits in a pot: Imagine a 30L pot full of completely dry substrate, if we cover the holes and pour water until it covers all the soil, maybe 8L of water will fit, that means before There were 8L of air that is now occupied by water, if we uncover the holes and drain 5L of water, it means that now inside the earth there is 5L of air and 3L of water, in total the 30L of the pot will be occupied by 22L of substrate (net), 5L of air and 3L of water, we are going to understand that the 3L of water is 100% of the humidity capacity of that pot, at that moment if we have a humidity meter we will see that it is at the maximum:
What happens is that the humidity varies depending on how far from the surface it is and although perhaps in the middle of the pot it is already 30%, if we lower the meter a little more we will see how the humidity rises again, so we can (and we must) wait even longer to water.
Taking the weight, if before watering it weighed 2kg (a guess) and now it has 3L of water, since it will weigh 3kg more, we will have to wait until it weighs 2.5kg less than after watering.
With the humidity remaining in the lower part it will be enough and it is not good to try to always be at the touch of water, the good thing is to try to be at the top of the air.
– It has to be clear that the roots do not need to be in direct contact with water, since they are capable of taking moisture from the earth in the same way that a dehumidifier takes moisture from the air, so even if the substrate seems dry, for the roots it is enough while it has moisture.
– The water that we give to the pots goes by what the plant drinks and by evaporation. When we have a very clay substrate or by watering too much we have saturated the soil with water, the roots cannot take water if there is no air, then the water that the plant would drink does not go away because the plant does not drink it, it only the water goes by evaporation and if we water again as if the plant had drunk we will continue to maintain this problem until it is possible that the plant dies.
– The roots need a moist substrate with a lot of air, the fungi need a substrate saturated with water and with little air, if we water a lot we manage to saturate it, worsening the intake of water and nutrients, and creating an ideal environment for:
mushrooms like nursery sickness
It is when a seedling or cutting rots at ground level and dies, which can also happen to an adult plant, the stem rots from the outside in and when the entire outer part of the stem is dead, the liquid stops circulating and the plant it seems as if it is not watered, before that it shows signs because its older leaves die as if they lack nutrients, but they remain green as if it were a lack of water, even though the newer leaves are fine.
You may also see spots that are caused by nutrient deficiencies that occur because the plant has a hard time taking them from the ground even if they are there.
This happens by using an unsterilized medium where the fungus is already and watering a lot and keeping the substrate too wet for new spores to develop or install.
Our plants endure thirst better than fungi, if between watered and watered we wait for what we should expect, we make sure that any fungus that has begun to develop would die from lack of moisture.
How often is there to water?
Well, just as we do not drink the same thing on a cold winter day and also we do not leave the house than on an August day when we are all kicking with heat and dry air, nor is a 20kg girl going to drink the same. weight than a 120kg man, because plants also have to understand that they do not drink the same, if a plant is small it will drink very little, if it is very large it will drink a lot, if it is raining it is never necessary to water, and if there is 40º and wind dry you have to water maybe in the morning and at night.
The important thing is that every time we water we wet as much soil as possible, if we plant in a pot we have to wet all the soil and wait until there is little humidity, since the less humidity, the more air for the roots, and if we plant in Firm ground must be wetted as much as possible, the bigger the bag of wet ground, the better because this way our roots can grow more and the bigger they are, the more air they can take and therefore, more nutrients.
RECOMMENDATIONS FOR IRRIGATION MARIJUANA
So, what things we have to be clear about so that we never go overboard with water again:
– By watering more, the plant does not drink more water.
– The more air in the roots, the better.
– It does not matter if the upper part of the pot is completely dry if there is moisture below.
– It is good that the upper part of the pot is dry because that means that they are taking in more air.
– The roots cannot take water if there is no air, so we must be careful not to saturate the substrate.
– the less humidity, the more air for the roots, you have to try to water the more separated, the better.
– Mushrooms need a substrate saturated with water and with little air, our roots otherwise.
– Our plants resist thirst better than fungi.
TRICKS TO OPTIMIZE IRRIGATION
If we want to “be on the plants”, what can we do without hurting them?
– Regulate the pH every time you water (all those who do it do it) and then check again how the pH of the water comes out below the pot, we have the best organic pH regulator.
– Note when you fertilize and when you water without fertilizer, how many days pass between one and the other, so you are clear that you would water with fertilizer on that day and then water without fertilizer the 2, 3 or 4 times that you have to do it and you would never have excess nutrients.
– Wash the earth, if your water is not good you could wash the earth every couple of weeks.
– Potassium soap for marijuana or cannabis plants, you buy a Sprayer and when you really want to work, spray it on top and making sure that all the leaves are well wet underneath, this does not hurt, it would clean the pores and if there is a plague starting it helps to end it, this is usually a bit tired and after spending a while there is no desire to continue  🙂 “
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