Posts in Cannabis Cultivation
At Purple Caper Seeds the Father’s Genetics Contribute Vigor, Potency, and Larger Yields.

Male cannabis plants make pollen sacks to fertilize the female flowers and, for breeders, selecting the parental lineage of strains is a crucial decision. Purple Caper Seeds meticulously breeds its father plants because they carry and pass on crucial genetic traits which have a strong influence on the offspring of a strain.

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Dirt vs Living Soil. Why adding microbes to your cannabis garden is really beneficial.

Healthy soil for Cannabis plants. Synthetic nutrients, tilling, heavy equipment, poisonous pesticides, and herbicides have turned much of our soil into dirt. When soil is abused year after year to the point where almost all of the biology is gone, we get dirt. Dirt can’t hold nutrients, has no structure, and is prone to erosion and disease.

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Indoor lighting – it’s a whole new world by Ed Rosenthal from the Cannabis Grower's Handbook

Light Quality in Cannabis Cultivation by Ed Rosenthal

The quality of light is its color, or spectrum. Light spectrum is useful for directing the plant’s growth habits, as well as contributing to healthy photosynthesis. Comparing this to a car, if light intensity is the gas pedal to increase speed of photosynthesis, light quality would be the steering wheel. Using different colors of light allows growers to affect the plant in terms of yield, flavor, color, growth, flowering, and even the severity of pests and diseases (Davis and Burns 2016).

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Shining a Light on…. Grow Lighting Terminology

Fohse is proud to partner with Ed Rosenthal to educate cannabis cultivators on the benefits of high-intensity lighting in the grow room. Fohse has been leading the industry for the last 6+ years in making high-powered LED fixtures designed specifically to grow cannabis. The promise of higher efficacy coupled with greater PAR output has lured celebrities and industry veterans alike to purchase Fohse high-intensity LEDs. All are eager to increase their yields while lowering their bottom lines.

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Organic Cannabis Cultivation - What is integrated pest management [IPM]?

A prominent agricultural process that has been trending in the cannabis industry over the last few years is integrated pest management, better known as IPM. This combination of methods suits the cannabis grower as it minimizes the impact on the environment while boosting plant health and meeting regulatory constraints by reducing or eliminating the need for harsh chemical-based pesticides. Like any well-planned grow, IPM starts with selecting soil media full of nutrients and microorganisms, adequate forecasting and planning, trapping and monitoring, cultural controls, biological controls, and when necessary chemical controls featuring ingredients that are highly vetted with a low impact on the environment.

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Ed Rosenthal: Paradise Seeds Talks Classic Cannabis Strains

Paradise Seeds has been around since the mid-nineties and is one of the most decorated seed companies in Europe with many cannabis cups and awards accumulated over the years. Paradise’s strain library contains over 40 strains and features sativa, indica, hybrid, autoflower and CBD Rich/High varieties. Popular strains include Nebula, Delahaze, Wappa, El Dorado Gold, L.A. Amnesia and Auto Kong ll (from Paradise’s hugely successful collaboration with Tommy Chong) and CBDRelax and CBDream from the company’s new CBD range.


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Grow Cannabis With Healthy Roots - Oxygen can be a limiting factor in the root zone by Ed Rosenthal

Cannabis plants are dependent on their environment for materials and energy. These key inputs, known as the limiting factors, drive photosynthesis and therefore plant growth. As outlined in the Marijuana Grower’s Handbook, the limiting factors are light, carbon dioxide, nutrients, water, and temperature. Through my work to update the book, which is now the Cannabis Grower’s Handbook, I’ve highlighted another critical limiting factor, oxygen.

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CO2 ENRICHMENT - A critical tool for maximizing yields … and it’s not just for warehouses

Enriching the air around your plants with CO2 supercharges the photosynthetic process, creating healthier plants and, ultimately, bigger yields. Gaining sufficient carbon from CO2 is important even at the earliest stages of plant development, when the plant prioritizes root development. Like compound interest, these early “investments” in plant structure support the creation of additional biomass as the plant matures. The best results from CO2 enrichment are realized when it’s applied to both the vegetative and flowering stages.

Yield improvements from CO2 enrichment derive from more, larger, and denser buds and can exceed 30-40% … commonly generating 25-30 pounds of additional finished product per 1,000 square feet per harvest. As Ed Rosenthal likes to say, plants evolved when there were greater concentrations of CO2 in the atmosphere and they “know” how to use more of it.

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The Best Way To Germinate Seeds

When it comes to germinating cannabis seeds there are many different ways to get those tiny jewel boxes of prized genetics to pop. In response to my scientific investigations exploring different methodologies for germinating seeds, Marijuana Seed Breeders conducted a survey of experts and home growers to ask about their preferred method of germination. I wanted to share the results of this survey as well as some of my own tips for spouting your seeds. Let’s give our plants the best chances possible to grow into their full potential by starting them off right.

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Don't leave your profits in the dust!

Collecting kief is a great way to get the most out of your harvest. Whenever I have a bag of trim I make sure to not let the trichomes go to waste by using a simple dry sift method utilizing a mesh screen and a kief collector that’s small enough to fit on my desk while I write. Trichomes and crystals cover both the bud and the sugar leaves on the cannabis plant and should not be squandered!

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