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- #161
Let me share something I saw here this week.
A grower had a 4 by 4 sq ft grow space, = 16 sq ft.
He needed a bare minimum of 3000 lumens per sq ft, to a max of 10,000 per sq ft, and 6000 or 7000 lumens per sq ft would be PERFECT, ample and ideal enough.
At bare minimum of 3000 lumens per sq ft, (less than half what the sun gives) he needed at least 48,000 lumens total. AT LEAST, BARE MINIMUM.
With CFLs, at 70 lumens per watt, he needed AT LEAST A BARE MINIMUM of 685 watts. He was growing with ten 26 watt bulbs, or 260 watts, much less than half of the bare minimum needed.
Let me repeat, he had 10 bulbs, (sounds like a lot) but he really had less than half the bare minimum needed. His ten bulbs were pretty in a DIY Reflector fixture and they looked like a lot of light, although they were much less than needed.
His plants were growing too, and were ten inches tall, after 3 weeks of VEgging in Hydro. They were ten inches tall, yea, but they were very, very stretched, looking for additional light. AND, they were not lush looking, they were very yellowed, leaves all twisted and curled and they were seriously nute burned. He could not understand why he had nute burn. He was following the directions perfectly on his nutes, was at a 550 - 600 ppm, but those directions were for someone with adeguate light.
WITHOUT ADEQUATE LIGHT, YOU HAVE TO REDUCE THE PPM AND AMOUNT OF NUTRIENTS FED TO THE PLANTS OR YOU WILL GET NUTE BURN.
Most instructions for feedings rely on you having adequate light!
AGAIN, WITHOUT ADEQUATE LIGHT, YOU HAVE TO REDUCE THE PPM AND AMOUNT OF NUTRIENTS FED TO THE PLANTS OR YOU WILL GET NUTE BURN.
A grower had a 4 by 4 sq ft grow space, = 16 sq ft.
He needed a bare minimum of 3000 lumens per sq ft, to a max of 10,000 per sq ft, and 6000 or 7000 lumens per sq ft would be PERFECT, ample and ideal enough.
At bare minimum of 3000 lumens per sq ft, (less than half what the sun gives) he needed at least 48,000 lumens total. AT LEAST, BARE MINIMUM.
With CFLs, at 70 lumens per watt, he needed AT LEAST A BARE MINIMUM of 685 watts. He was growing with ten 26 watt bulbs, or 260 watts, much less than half of the bare minimum needed.
Let me repeat, he had 10 bulbs, (sounds like a lot) but he really had less than half the bare minimum needed. His ten bulbs were pretty in a DIY Reflector fixture and they looked like a lot of light, although they were much less than needed.
His plants were growing too, and were ten inches tall, after 3 weeks of VEgging in Hydro. They were ten inches tall, yea, but they were very, very stretched, looking for additional light. AND, they were not lush looking, they were very yellowed, leaves all twisted and curled and they were seriously nute burned. He could not understand why he had nute burn. He was following the directions perfectly on his nutes, was at a 550 - 600 ppm, but those directions were for someone with adeguate light.
WITHOUT ADEQUATE LIGHT, YOU HAVE TO REDUCE THE PPM AND AMOUNT OF NUTRIENTS FED TO THE PLANTS OR YOU WILL GET NUTE BURN.
Most instructions for feedings rely on you having adequate light!
AGAIN, WITHOUT ADEQUATE LIGHT, YOU HAVE TO REDUCE THE PPM AND AMOUNT OF NUTRIENTS FED TO THE PLANTS OR YOU WILL GET NUTE BURN.
I did start to cut it out just a few moments ago, need to paint it, then mount it. But it'll be a few hours though as she is napping trying to catch up on sleep. I'll post pics when it's finished.
