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light distance, fan and yellow tips for my one straberry


berrystraw
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I should know the right distance from the HPS light during growing time

and if I should or should not use a fan

but I am not positive and being that tips are slight yellow I am here to ask.

details as follow:

 

. first week in growing time 

(I let her in natural light until now and I started under HPS 5 days ago

being about 20 cm. tall and 8 pair of leaves)

- in soil

- pot is about 15 litres

- temp 24 to 27 day

22 night (my night is from 10 am to 6 pm)

- humidity around 65% (75 during the night)

 

- in the soil there is a bit of natural feeding, a few worms

and I use green house power feeding hybrids (all in one)

- rhe last few days I watered her every two days,

now I am going on every three days or more

( I was afraid it burns) I spray the top sometime with water.

I use once water and the other chemical feeding,

I use the maximum quantity for the first time

I added same egg shell for the calcium, just in case

- I do not know what is EC and I do not know ph

 

- HPS growing light 250 watts

- distance 62 cm.

- 15/20  square metres room

- big fan i use it only when I do not water it

 

would you kindky let me know if

I should use more fan

modify distance

or watever?

thanks 

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well first precuation to take when posible is, do not spray when the light is ON. it can cause some burns on the leaves due to the drops reflecting the light, it doesnt always do but with HPS be careful ;)

 

And with a 250w i would stay around 40 cm during the veg time and maybe a little closer during flowering, but it depends a lot the temps above your bulb, try to put your thermometer exactly where the top will be and check the temp for one day. You can also place your hand and if you feel heat its too close, but its more tricky if you havent done before to know where the limit is with the hand.

 

Good luck man

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when spraying indoors it needs to be done when the lights are on, i know it seems stupid.

but youre right about burning, always raise the lights , so you dont accidentally get water on them. Also you must do it in time for the plant to dry out before the lights go off or you risk getting mold spots.

a great tip for spraying is .. wait for it.. soda water.. i know right sounds stupid, but i can explain.

The soda water HAS to be salt free, theres 2 ways they make soda water, one is with salts.. bicarb soda i think.. the other is just plain carbonated water, like a soda stream.

the bubbles are Co2 and the water will hold them to the leaves.. so ofc you need just plain carbonated water, if you got a RO water source then you can definitely use that, also you can ad a little wormjuice in there.. ive even used a bit of resi water like 25% resi to 75% soda water. You dont have to ad anything to the water just plain soda water is fine, and you will notice the difference right away.

when i was first told about this.. some 24 years ago i was in the same mind.. thats just crazy.. but believe me, it works and it works well.

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Hi mate, 

 

Your plants look healthy, look healthy, no problems. 

 

The distance between the light (spotlight), and the upper tip of the plant, should be the one you see timely, must measure the temperature at the tip of the plant, not exceeding 27 º half, then up or down will focus accordingly.


So, you can have 30 dentimetros, or only 15 feet, away. Everything depends on the temperature in the top bud of the plant. 

 

The humidity you have is correct, to the stage of creicmiento. 

 

I would not use eggshell or worms or anything. Powder Feeding provides everything you need, the rest is not necessary.

 

I hope you continue with healthy plants and a have a good harvest in the next months!! :)

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very clear, thank you all

I keep having yellow tips, but they told me not to worry at this stage

 

would someone kindly give me a suggestion about fan?

I use it for avoiding burning, but it lower temperature...

is it necessary?

 

(I add eggshell because in the soil there is too much ash... potassium...

Iwill not use it next time. worm is because they build gallery for the air 

and eat rotten material)

 

I also build a dome as I realize is was a bit too young for veg...

and I reduced feed

 

post-32723-0-22500700-1402349527.jpg

 

post-32723-0-11762700-1402349568.jpg

 

 

 

 

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Nice, sure you get good plants! 

 

 

The fan is used mainly to remove some air, so that the plant always have oxygen to breathe. 

 

It is also used to lower the temperature or humidity, but its main function is to remove air, so that the plant available oxygen. 

 

If armari ode culture, this closed, zip, the fan also helps equalize the temperature inside the cabinet. 

 

If you have a good system intraccion and extraction, the fan can be used at the minimum speed. 

 

Personally, I use only two small fans, 15w, 20cm diameter, in a culture of 1.5 square meters. Usually it is enough. 

 

Fan to prevent burn yolks, is an option when the temperature is too high. It is advisable then climb the lighting, put it higher, to reduce heat. :)

 

 

Regards!! 

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Chill out man ;)

ur Plants are fine the curling on the Leaves is only cause they grew in to each other otherwise it would allso occur un the outside Fingers ;) 

For ur light its not any rule of thumb for that its like the others said all about the Temps in ur Room.

Me myself like to have 400W in Veg and have it about 50-60cm above the Plants it gives them maximum Growth with a real good Clima, but for such things u need a real good air exhaustment otherwise it Plants will dry out in notime.

For Fans it depents on the Strain, most indicas i deffentetly use a fan for the entire Grow on Sativas mostly only during Flowering. But my rule of Thumb here is as long u have a good in and outtake u start the Fan up as soon as u can not see the Floor anymore if u look fron straight above ;)

Remember my advice is NOT any good if the conditions around them are not like i said.

good luck mate :)

 

cheers

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in fact I have an entire room, 20 square metres

and I can open the window 

this should means that I do not need to use the fan , right?

but I am quite worried

what is the real maximum temp?

on the strawberry video arjan and franco said 27 is the right temp, but do not say the absolute max

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There is no absolute maximum, there are varieties of marijuana (usually sativa) that can survive even with 35 or 40 degrees Celsius and other varieties as pure indica that if you spend 30 º can start being hermaphrodites by heat stress. 

 

The only right is the right temperature to grow, so that the plants do not suffer heat stress, to avoid becoming dehydrated, is about 24 ° - 27 °, that is the perfect size, in my opinion. 

 

Personally, I always like about 24 º. :)

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Well Biologically the maximum heat is 32degrees.

At this Point the Plant stopps Groth pretty much completly and focuses on surviving ;) so u really want to keep it under 32degrees

Opening windows is something i wouldnt recoment as the Plant lives in a Sterile Room it is very weak for any disseas and Pests, which often come from outside ;)

 

cheers

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32 degree before red alarm,

but risk of ermaphrodytes, ok

and during night time I am betwrrn 20 to 25, I hope is not too much

 

regarding sterile condition, vertox:

they told me that white strawberry is good for difficult conditions

as my house is IN difficult conditions and is A difficult condition in

itself... I feel lucky because boars stopped in my backyard instead of getting in the

bed room, recently  :sarcastic:  :lol: 

post-32723-0-50438500-1402600070.jpg

 

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  • 2 weeks later...
Glad you see the correct focus distance / fan. 

 

Those yellow tips, these tips burnt sierra is excess nutrients. Top of over fertilization. You should use less fertilizer. In the next irrigation following  water only, to avoid sobrefertilizando continue. 

 

Greetings! :)

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i give 1g for 1L only in full flowering or when i make really long veg with the PF ;) in flowering 0.6 0.7 is enough most of the time, and at this age i am usually around 0.6 ;)

 

Have a good grow :)

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many thanks 

should I know what is PF?

 

do you think I should add a bit of phosporous?

on the strawberry video they say during veg period they give

121 the first week and

122 the second week

while the ibryd pwder is

15 7 22

 

she looks beautiful, at the moment, and she IS growing...

a woman would say "I am so exited!"

:girlcrazy:  :cool:  :biggrin:  :bye: 

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it looks like if you rubber a pencil on a paper, it looks silver, it reflect light

 

today is touching the big leaves outside

on the lower part of the plant

 

it is only on one plant out of three

 

I found a fungus gnats as a possible reason

in fact I have 80% humidity cause outside in always raining

 

I will try a normal incecticide a maybe I could add same dry earth

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yes it looks like a virus or a fungus maybe which one is another thing, some deficiency look a little bit like htis, but it doesnt shine like paper pencil like yours normally.  The Manganese deficiency can turn up like this a little bit, check some info about it and see if it corespond to your symptoms.

 

Good luck!

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Ikept light on during night time no water since today

dry completely the earth, cover it with 2 cm of new dry soil

stop sprying with water

it slowed down the proceed of pest

 

sure it has something to do with water and or humidity

 

tomorrow I switch off the light and see what happens

I do not think is a lack of nutrients because in the soil there was nealry everything

plus the chemical feed

 

I did see a couple of small fly in the past 

I did not worry 

beside I believe they used this room for growing before

and they did not dry up the room

there is mold on the walls

 

I have too bad condition here

I am not positive I can make it but I start learning anyway

there is so much to learn and is easiest if one do a little experience in the meantime

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two more picture of this strange spots on the leaves

now I am keeping the fan on during night time

I suspect that spots correspond to areas that was sprayed heavily with water

with the light off, with too much humidity and so on

 

it happens only to the plant directly under the light (wtich is flowering light now)

while the other two are ok for the moment

 

I read a lot regarding the matter but I did not find any matching suggestion

 

I am also watering from downstairs

so the top keep being dry

post-32723-0-56417200-1404344104.jpg

post-32723-0-88411300-1404344122.jpg

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