Recent content by bruno12345

Yea, and its pretty easy and cheap Here in Brazil we get it from drugstores, at 3% rate. Just dilute it 1 part 3% h2o2 with 2 parts Water. Example: 20ml 3% h2o2 + 40ml water = 60ml h2o2 1% And its ready for some seed sinking.

Theres a scientific paper saying that at least 24h in 1% H2O2 solution is great for germination success and speed (also for seed disinfection). They made a "seed germination protocol" Quicker taproot appearance and quicker cotyledon. Seeds with low viability or stored for 5 or more years are...

NH4 is not poisonous. Ammonium is perfectly fine.- NH4 Ammonia is toxic - NH3 NH3 is basically a gas, and mostly escapes to air when formed. Mostly formed at +9ph. It also accumulates in water only in the presence of basic pH.. One way ammonia is formed is getting ammonium salts to high...

well, its because professional agriculture pratically doesnt care for pH. No professional grower (that has a minimum of knowledge of the medium and his water source) invest time and money regulating pH of a low alkalinity water. But a professional grower will obviously monitor its medium pH...

Its not that the PH doesnt matter, the thing is alkalinity matters the most. Water pH 9,5 +70ppm of carbonates needs 1.2ml of sulfuric acid to bring it to pH 5.0 Water ph 8,3 + 300ppm of carbonates needs 6ml of sulfuric acid to bring to ph 5.0 What this means: solution pH isnt the driving...

Oh i was talking about your assumption that they only tested 20 nutrient combinations. If they did all the possible combinations It would not be 125 plants. Its 5 replicants per treatment, which means 625 (i Said 750, damn math) plants. Simply inhumane for a lab research I agree with you. I...

Also regarding treatments, 125 different nutrient solutions would mean a work for 50 people. Can you imagine the hard work It would be to scientifically manage 750 plants, measure them, weight root mass, change nutrient solution (125 different types) every week? The space, the number of...

Great analysis farside. Regarding Cl and other nutrients, i quote the authors: "No matter the experimental design used, an inherent problem in nutrient solution experiments is that nutrients cannot be added individually but must be added as a compound containing both anions and cations...

This is simply not comparable to the last article. Not only these are different species, but different period of growing. Vegetative state P was already studied, and yes, its pretty much similar to this plant in the image. 15 to 30PPM seems alright, damn you could even go below this and have...

Well me too! Our genetics are already filled with lots of cannabinoids, more potent than ver before. Give me yield!!!!!!! Hehehe

I want to also note that this last article, still a preprint, but produced in one of the most recognized university agronomic departaments of the world. From Canada.

Well, from my point of view: Potassium is strain dependent I would work It around 150-200. Even though their plants did well in 60ppm, It is known that some strains benefit from higher K. But still an interesting finding. Well, Bruce bugbee Said his friend researcher found buds to be sinks for...

Good day cannabis lovers. Another article regarding nutrition. (still in preprint condition). Optimization of N, P, K for soilless production of Cannabis sativa in the flowering stage using response surface analysis By: Lewys Bevan1, Max Jones2, and Youbin Zheng1* Now during flowering. And...