Hi everyone, I am a grower from Uruguay and have some plants in my garden; they were doing fine until I noticed some time ago that one of them had branches starting to turn yellow and burn at the tips, and another one seems to be going that way as well.
They are growing in 100 liter (aprox. 26 gal) plastic pots (they are half barrels actually) to which I made holes at the bottom for drainage. The soil is made up of compost (40%), ordinary garden soil (40%), perlite (10%) and coco-fiber (10%).
They are around the 8th week of flowering (for Northern Hemisphere that would be equivalent to end of August).
I have not been following a fertilizing program, I just added 15-15-15 granulated fertilizer 3 times on the soil surface which dissolved with successive waterings (around 6-10 grams each time per plant), together with Mono Potassium Phosphate dissolved at 6 grams/5 gallons, also twice. All fertilizers were added when flowering had begun, I didn't fertilize on veg.
They are growing outdoors in full sun and sometimes windy conditions. I water them every day using around 1-2 liters for each plant (0.25 - 0.5 gal), with water pH 7.
I appreciate any comments to know if there is something I can do at this point to save the plants and harvest. Thanks a lot to anyone who can give me some advice!
SPECS
Soil or hydro or coco: Soil
Strain: Moby Dick F1 Hybrid (Moby Dick x Unknown)
Photo or Auto: Photo
plant age: 5 months
pot size: 100 liter (26 gal)
has it been repotted? and when?: Repotted from small pot on october (4 months ago)
Soil type: compost (40%), ordinary garden soil (40%), perlite (10%) and coco-fiber (10%)
Nutes or additives used and how often for soil:
15-15-15 NPK 3 times since December (6-10 grams each time per plant)
0-50-30 Monopotassium Phosphate 2 times on February (6 grams in 5 gallons, applying 0.5 gal per plant)
Air temps (max min): 10-30 C (50 - 86 F)
Res temps (max min): (not sure what Res means)
Humidity: -
lighting type and wattage (hps, led, cfl): Full Sun
Light schedule: Outdoors
ph level: -
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