Help me understand..?

[Obepawn]

Good afternoon from the Coachella Valley. Ok, on several occasions, I’ve heard experienced growers here state that cannabis plants will use nutrients that it needs when it needs it. There was a recent thread about late flowering with a guy being concerned about the nitrogen content of a flowering nute, and someone replied that he didn’t have to worry about that because the plant will only use what nutrients it needs at that particular time in it life cycle. Is this accurate? If it is, please explain why a plant in 5th week of flower gets nitrogen toxicity. Does this apply for synthetic nutes, or only for organics?

Please discuss, I’m trying to expand my knowledge.

 

[Renfro]

Too much nitrogen in flower is bad. It makes for very harsh bud that doesn't burn clean. In flower you want to decrease nitrogen and increase phosphorous and potassium.

You can see the plant is overloaded with nitrogen because leaves will be very dark and canoed.

 

[NirvanaMesa]

It depends on what type of fertilizers. Some are water soluable and are absorbed without any work on the plants part. IE salt based synthtic fertilizers. The plant roots have to do more work to absorb bound up organic fertilizers. Thats why they are less likely to burn your plants. Hope that helps, thats a very basic explaination. You can research more about symbiotic relationships in soil and soil microbes etc to understand better about organic gardening.

 

[Obepawn]

It depends on what type of fertilizers. Some are water soluable and are absorbed without any work on the plants part. IE salt based synthtic fertilizers. The plant roots have to do more work to absorb bound up organic fertilizers. Thats why they are less likely to burn your plants. Hope that helps, thats a very basic explaination. You can research more about symbiotic relationships in soil and soil microbes etc to understand better about organic gardening.

Thanks man. What about water soluble organic fertilizer, like fish emulsion?

 

[NirvanaMesa]

I am not really an authority on this subject so better to get it from somewhere like a university paper etc. But fish fertilizer will definitely burn a plant if you use too much. Any nitrogen will. Im not even sure there are any really slow acting nitrogen sources that plants have to work hard for. Even urea which is 46% nitrogen is "organic".

Basically, plants don't just "not use" nitrogen if they don't need it. If they did that you could just dump as much fertilizer as you want and not worry about it. Thats not how it works.

 

[Obepawn]

I am not really an authority on this subject so better to get it from somewhere like a university paper etc. But fish fertilizer will definitely burn a plant if you use too much. Any nitrogen will. Im not even sure there are any really slow acting nitrogen sources that plants have to work hard for. Even urea which is 46% nitrogen is "organic".

Basically, plants don't just "not use" nitrogen if they don't need it. If they did that you could just dump as much fertilizer as you want and not worry about it. Thats not how it works.

Thanks for the info.

 

[CannaCountry]

To answer your question, take two plants...fertilize (regardless of what type or form) one per your feed directions...and quadruple up on the amount of feed for the other plant. Do this for two or three feed cycles and once you do that, make an observation as to what happened...and that's your answer. Feed matters, amounts matter, it all matters...this is life...you don't jam boat loads of food into your kid's belly and say...'ah, they take in what they need and shit out the rest'...and you don't do it to plants either.

 

[Obepawn]

To answer your question, take two plants...fertilize (regardless of what type or form) one per your feed directions...and quadruple up on the amount of feed for the other plant. Do this for two or three feed cycles and once you do that, make an observation as to what happened...and that's your answer. Feed matters, amounts matter, it all matters...this is life...you don't jam boat loads of food into your kid's belly and say...'ah, they take in what they need and shit out the rest'...and you don't do it to plants either.

Lol. Gotcha