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Par & Lighting

Vitamins

B Vitamins

B vitamins are more then just one compound, it is actually a group of compounds that offer various forms of the vitamin.

Par is the intensity the light gives off based on distance away from the light source. Measuring and understanding par is important to avoid light burning. measuring your par would allow you to keep the canopy at a optimum range.

Vitamin B5 is essential for marijuana plants. Too little of it, and they die.

Vitamin B1 (Thiamine) helps them in carbohydrate production and metabolism that fuel foliar and floral growth. (B1 assists plants in phosphorus uptake)

Riboflavin (B2) helps your plants fight diseases and viruses that commonly attack marijuana plants.

Niacin (B3) promotes marijuana plant metabolism and cellular integrity.

Biotin (B7) helps your plants manufacture amino acids and energy.

Folic Acid helps your cannabis plants maintain genetic integrity.

NPK

The thing about Vitamin B complex is that marijuana plants especially in bloom phase can’t synthesize all the different variations of Vitamin B fast enough or in enough quantity. When you supplement Vitamin B complex, you greatly assist your marijuana plants, freeing them from having to produce and store their own Vitamin B components.

Nitrogen: After water and light, nitrogen is the most important nutrient for plant growth Most nitrogen in soils is in its organic form, which plants cannot assimilate. Plants absorb nitrate, NO3–, and also ammonium, NH4+, from the soil. The roots of these plants live in symbiosis with certain soil bacteria capable of binding to atmospheric nitrogen gas, N2, which it then supplies to the plant. The plant then reduces or oxidises it to its ammonium. Availability depends largely on microbial life, which transforms organic forms into assimilable forms through mineralization.The total nitrogen content in a plant’s dry weight varies between 1.5% and 5%.

Phosphorus: Phosphorus is found in plants as phosphates in high-energy ATP (adenosine triphosphate) molecules, that plays a essential role in Photosynthesis, metabolism, & respiration of the plant.

Potassium: Affects the plant similar to nitrogen and Phosophorus. Potassium regulates the opening and closing of the stomatas, which effects plant transportaition, and activates more then 50 enzyme complexes. K is the most abundant cation in plants and can comprise up to 10% of their dry weight

MACROELEMENTS

MicroElements

Sulphur: Found in some amino acids and varius enzymes.Sulphur is absorbed as sulphate, SO42-, and in the same form it is transported by the plant’s xylem.The sulphur to nitrogen ratio is 1:15.

Calcium: Responsible for forming cellullar walls, providing strength,and increases adaptivity.Calcium is absorbed as the divalent ion Ca2+, which is abundant in most soils. if the plant is cultivated on untreated peat, which has a very acidic pH level. From time immemorial, lime has been added to acidic soils in order to facilitate cultivation, so the essential nature of calcium has long been known.

Magnesium: Magnesium forms part of the chlorophyll molecule and is fundamental to successful plant growth. It is also involved in energy metabolism, forming compounds with ATP. It is absorbed as the divalent cation Mg2+.(high mobility element)

Iron: Contributes to Pigmentation and Leaf Respiration. The plant can absorb it in the form of ferric ion (Fe++) although it can also be absorbed organically.PH range lower than 6.0, although with a PH over 6.5 half of the Iron won’t be available for the plant.

Zinc: Zinc is responsible for enzyme function and chlorophyll in marijuana plants responsible for the plant to withstand colder temperatures and also aids in the breakdown of carbohydrates to sugars.

Copper: Proper plant production,Reproduction, Maturity, Carbohydrate Metabolism, Oxygen Reduction.

Boron: Functions or boron; Translation of Sugars, DNA Synthesis, Cellular Differentiation, Nitrogen Metabolism, Active Salt Absorption, Hormone Metabolism, Photosynthesis, Water Relations, Fat Metabolism, Phosphorous Metabolism.

Molybdenum: Like boron, is found in plants in polyatomic ion form, in this case the molybdate anion MoO42-. Molybdenum is essential in phosphorus metabolism, and is important in nitrate reduction since it is a co-factor for the enzyme nitrate reductase.

Advanced Nutrients

Nutrients are classified into two large groups: organic and inorganic. Organic nutrients make up between 90% and 95% of the dry weight of plants and consist of the elements carbon, oxygen and hydrogen, from carbon dioxide in the air and water from the soil. The remaining 5 – 10% comprises what is called mineral fraction.

Water & Soil PH

PH affects nutrient uptake and nutrient availability. you want tobe aware if you soil PH is below 5.9 and or above 6.2. The plant absorbs the most nutrients at this stage. playing with PH can effect other macroelements that are beneficial to the plant.

Your soil medium can be effected by the PH and the nutrients you poor into it. salts can build up in the soil raising the PH.

Soil PH is commonly the issue with beginner growers.the PH of your water will also effect how nutrients are absorbed through your soil..

ex:

Iron isn't in a soluble form for the plant if the PH is too high (PH of 7). Effecting the uptake of that nutrient ultimately leading a smaller harvest :(

1. NPK & MACROELEMENTS

2. Vitamins

3. MicroElements

4. Soil & Water PH

5. Co2 & Airflow

6. PAR Power (lighting)

7. RH & VPD

RH and VPD

CO2 & Airflow

Relative humidity:

Humidity can destroy yields, suffocate plants,etc. To control RH we use dehumidifiers,and fans. when running dehumidifiers you have to account for how much watering has been done that day, amount of water, your VPD.Two main factors that affect transpiration are temperature and humidity. We don't need 10% humidity in the air every day for our plants to stay health, Having an excessively dry controlled climate everyday would reduce yields.

Co2 is essential for the plant to use in respiration, in a sealed room grow you will need to replenish CO2 levels. increased leves of Co2 to 700ppm (natures ppm is around 390ppm CO2) in grow rooms increased yield about 40%.

VPD (Vapor Pressure Deficit)

Airflow keeps the air mixed and fresh. Having air that isn't moving caused fungi growth, most commonly powdery mildew. proper airflow will promote healthy and happy plants

VPD helps us optimize growth with our plants in their environmental conditions. Cannabis plants have different optimum VPD levels in different stages of growth. VPd

-1-2 weeks into flower plants drink less water will root mass grows. VPD8-11, temp77-79, RH65-75

-3-4 weeks plants flowering and taking up nutrients. VPD 10-13,temp75-77, RH 55-65

5-10weeks VPD 13-16,temp72-75 RH40-50

For eliminating smell you need carbon filter

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