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Grow QuestionsDWC - exceso de Nitrógeno?

DWC - exceso de Nitrógeno?

Frm11001started grow question 3 years ago

Hola! tengo 2 autoflorecientes creciendo en DWC, están en la 3 semana de Vegetación y una de ellas ha comenzado a mostrar el síntoma de las fotos, solo en los nuevos brotes, es exceso de nitrógeno? que debo hacer? mañana debo cambiar la solución de nutrientes!

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Leaves. Color - Yellow

NobodysBudsanswered grow question 3 years ago

tip burn can be more than one root cause. 600ppm is anice light mix... so, i'd guess it's either pH related or you may need to up the mix a small amount. N - 120's P - 50's K - 190-200ish These below depend on water used -- i have "hard" water. if you have better water, you may need more of these: Ca - 100ish Mg - 85ish S - 110ish 5.8-6.5pH ballpark PPMs. i'd keep it at 6, as you drift just a bit under 5.8 important things become unavialble quickly. (or, you have to boost those things, which just is inefficient and adds more solutes than necessary to water) The npk should be good rough estimates to use... 650-750ppm is safe, if in good balance. So, i'd calculate individual ppm's from guaranteed analysis labels and see if anything is drastically different. 120-130ppm N should be safe.. that's generally the sweet spot based on real scientific research - see various Dr. Bruce Bugbee videos on youtube... i believe i have some links in my main profile comment section, if curious.

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Frm11001answered grow question 3 years ago

chicos muchas gracias por sus respuestas, cada una de sus respuestas me ha enseñado mucho! me siento afortunado! muchas gracias! los seleccionaría a todos!

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GMSgrowsanswered grow question 3 years ago

With hydroponic grows. In veg you keep your ph between 5.5 to 6.0 with 5.8 being your best setting for veg cycle. With autos, right from sprout, you can feed with 200 ppm 0.4 ec. If you see good growth you can increase by 100 ppm 0.2 ec every week until you reach a max of 600 ppm, 1.2ec. You shouldn't go higher unless you see the plants need it. When you switch to flower nutes, then the ph gets set between 6.0 to 6.5, with 6.2 and 6.3 being your best setting.

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rhodes68answered grow question 3 years ago

Think the other guy is right dont see any toxicity though 750 is high at 3 weeks so cutting back wise at least as test. Nuets is one place strain matters. BTW shift from ppm to EC to show salinity, ppm has 2 possible conversion factors .5 or .7 and no one is ever sure which when people use it.

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NobodysBudsanswered grow question 3 years ago

* i've got a table every week of jsut about every diary listing ppm's i just linked a spreadsheet to @dogdaze89 - check his diary and download the spreadsheet if you want -- double check labels.. if w%/v values, you may need to adjust for specific gravity (if i didn't get that backward with w%/w values) In this case, i'd recommend googling a ppm nuterient calculator that has a section to handle specific gravity. don't have to calculate the individual stuff more than once... you are already in a good ballpark, so any minor adjustment due to observing plant will be small and you'll still know the overall gist of ppm / component ppm.

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Frm11001answered grow question 3 years ago

No se si mantener los nutrientes como los tengo o reducirlos un poco! La tercera semana comencé con los siguientes parámetros: Temperatura celcius: 24c ph: 6.0 PPM: 750 Termino la tercera semana con los siguientes parámetros: Temperatura celcius: 24c ph: 6.0 PPM: 600

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