- On 12 December a grower who goes by the name of "Greenvigilante" began growing his first crop of Dinafem's Moby Dick XXL strain.
- 77 days later the results were stellar: an enormous harvest produced using HPS and LED lighting, growing 15 Moby Dick XXL Auto plants with an incredible yield of 155 grams per plant, for a total of 2,340 grams of dry buds. Here we show you, step by step, this strain's entire growth and flowering process.
Dinafem's Moby Dick XXL Auto is an auto-flowering variety of cannabis that was a created with a view to satisfying growers who are after abundant, high-quality harvests based on feminised autoflowering seeds. This is a very vigorous and powerful genetic that produces a surprising amount of resin and flowers for an autoflowering variety. In fact, it's an improved version of Dinafem's famous Moby Dick Auto. And this crop is a perfect example gauging its true potential.
Greenvigilante began the germination process by placing 22 Moby Dick XXL seeds on a wet paper towel, inside a 2x2 m closet that he later lit up with four 600-W HPS lamps and some complementary LEDs in the centre. For this crop he employed a central module of 2 75-W LEDs from the British manufacturer Grownorthern LTD, offering great light quality, and an excellent impact on the final product.
This involved the indoor growing of autoflowering marijuana using a coconut fibre substrate, very effective at draining the water and allowing the plant to easily absorb all the mineral salts it needs. He also nourished his plants with B-52 (B vitamins B, ideal at budding time), Big Bud nutrients (for the early flowering) and Overdrive (for the final flowering period).
The third day, after setting up the closet, the lamps, the ventilation system and the pots, Greenvigilante watered the crop by preparing the nutrient solution with 0.3 ml of Roots Excelurator, a product that provides basic nutrients for the formation of the roots, as well as 1 ml of Sensi Grow A & B nutrients (formulated for hydroponic crops) for each litre of irrigation water.
This is a model that should be followed, he explained, during the growth period (always before the flowers bloom) and that can last about 30 days. During this stage he also incorporated into the irrigation water, for each litre, 2 ml of Sensi Grow A & B, 1 ml of Voodoo Juice, and 0.1 ml of Roots Excelurator. With this contribution of nutrients he obtained a PH of a 5.8 and electrical conductivity (EC) reading of 0.8.
The temperature with the lights on was maintained a bit below 24 degrees. During the final days the plants were fed, for each litre of water, 2 ml of Sensi Grow A & B, 1 ml of Voodoo Juice, 0.15 ml of Roots Excelurator, and 0.10 ml of calcium (or 0.10 ml of magnesium). All these elements maintained the PH at 5.8, and left the EC around 1.1.
Dinafem recommends leaving sufficient space between Moby Dick XXL Auto plants for them to fully grow. The nutrient doses were increased to 2.5 ml of Sensi Bloom A & B, 0.1 ml of magnesium or calcium, 1 ml of B52, and 2 ml of Big Bud for each litre of water. These amounts would be maintained until Day 60.
A few days later the flowering was in full swing. By Day 53 the scent given off by the crops was indescribably delightful. The buds had reached a considerable size and were full of trychomes. In about 15 days they would be ready for harvest.
One of the problems that this grower normally has to deal with when growing big autos is rotting buds. He explained, however, that thanks to the SCROG he obtained an abundance of smaller buds instead of huge ones, which can suffer from this phenomenon. To avoid this, over the last two last weeks he used a lighting cycle of 18/6, lowering every two days until reaching 12/12, which helps to keep the buds from wilting.
Following Day 70 the grower began to use only water, for 7 days instead of the customary 10. The scent emanating from some of the buds by this point was absolutely overwhelming.
Finally, the duration of the growing period was established at 77 days. By then the anti-odour filters were working full-tilt, because as soon as the closet was opened the whole house was flooded with the aroma of Moby Dick, an intense scent with notes of citrus, pine, exotic wood and to sweet Indica.
As this example demonstrates, successfully growing a strain like Dinafem's Moby Dick XXL on a first run is something within the grasp of any grower. Although this marijuana produces a great amount of resin and is very powerful, obtaining a yield like this also calls for a lot of patience, absolute dedication, and a lot of love for cannabis, like that which Greenvigilante feels after having obtained such a magnificent harvest thanks to a genetic that he himself describes as "impressive."
With information and photos from Uk420.com
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