- Obama’s War on PotBack when he was running for president in 2008, Barack Obama insisted that medical marijuana was an issue best left to state and local governments. “I’m not going to be using Justice Department resources to try to circumvent state laws on this issue,” he vowed, promising an end to the Bush administration’s high-profile raids on […]
- Legislators To Review Distribution of MarijuanaThe use of medical marijuana in Maryland and how a statewide system could legally provide patient access are once again before the General Assembly, with three bills filed in recent weeks — each proposing a very different system for dispensing and distribution of the drug. Though federal law criminalizes the use of the drug, some […]
- Struggling Cities Turn To a Crop for CashAs the stubborn economic downturn has forced this city to take painful steps to balance its budget in recent years, it has increasingly turned to one of its newer industries to raise much-needed revenues: medical marijuana dispensaries. The city has raised taxes on marijuana dispensaries several times in the past few years, and last year […]
- Initiative To Legalize Marijuana Will Go To VotersAn initiative seeking to legalize and regulate the recreational use of marijuana will be decided by voters, Washington state lawmakers said Thursday. If passed, Initiative 502 would make Washington the first state to legalize the recreational use of marijuana. It would place the state at odds with federal law, which bans marijuana use of all […]
New growers concentrate on quality of the cannabis seeds, lighting systems required (natural or artificial) ,the type of the soil and fertilizers etc. Beside many other factors, nutrients is also important factor to keep in mind in cannabis plantation process. Nutrient disorders are caused by too much or too little of one or several nutrients being available. These nutrients are made available between a pH range of 5 and 7 and a total dissolved solids (TDS) range of 800 to 3000 PPM. Maintaining these conditions is the key to proper nutrient uptake.
Nutrients Over twenty elements are needed for a cannabis plant to grow. Carbon, hydrogen and oxygen are absorbed from the air and water. The rest of the elements, called mineral nutrients, are dissolved in the nutrient solution. The primary or macro- nutrients (nitrogen (N), phosphorus (P) and potassium (K)) are the elements plants use the most. Calcium (Ca) and magnesium (Mg) are secondary nutrients and used in smaller amounts. Iron (Fe), sulfur (S), manganese (Mn), boron (B), molybdenum (Mo), zinc (Zn) and copper (Cu) are micro-nutrients or trace elements. Trace elements are found in most soils.
Rockwool (hydroponic) fertilizers must contain these trace elements, as they do not normally exist in sufficient quantities in rockwool or water. Other elements also play a part in plant growth. Aluminum, chlorine, cobalt, iodine, selenium, silicon, sodium and vanadium are not normally included in nutrient mixes. They are required in very minute amounts that are usually present as impurities in the water supply or mixed along with other nutrients.
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