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Nutrients (view source)

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=== Potassium ===
Required for root development. Potassium is also regulates the opening and closing of [[Anatomy of Cannabis#Stomata|stomata]] for [[Plant processes#Gas exchange|gas exchange]].
 
 
 
=== Copper ===
Copper is used in photosynthesis by helping metabolisemetabolize proteins and carbohydrates.
 
=== Iron ===
 
== The sequence of nutrition ==
[[File:The biochemical sequence of nutrition in plants.png|center|thumb|none|499x499px]]
The biochemical sequence depicsdepicts the order in which nutrients are required by the plant and the interconnections between nutrients.
 
== Nutrient antagonism ==
High concentrations of one nutrient can decrease the bioavailabiltybioavailability of another, this is known as nutrient antagonism. For example, high Nitrogen will decrease availabiltythe availability of Boron.
[[File:Mulder's Chart of Nutrient antagonism.png|center|thumb|none|577x577px]]
 
== Deficiencies ==
Most deficiencies present as a color change on the leaves, moving from the center outwards or from the edge of the leaf moving inwards. Deficiencies can appear on older leaves first or newer leaves first. Mobile nutrient (such as NPK) deficiencies will show on older leaves first as the plant moves nutrients to the younger leaves. Deficiencies will remain in leaves that have already finished growing even after it is remedied in fresher leaves. This means you must be patient in remedying mobile deficiencies
 
Nutrients can be added to the growing medium before planting if possible, to avoid defciencydeficiency.
 
=== Nutrient lockout===
[[File:SoilpHNutrientLockout.png|thumb|none|400x400px|The availability of nutrients in soil at different pH]]
Nutrient lockout occurs when the pH is too high or too low for the plant to properly absorb nutrients. This leads to a deficit of necessary nutrients for growth and/or survival. A nutrient lockout can also occur when the grow medium accumulates too much salt or other nutrients.
 
 
== Pre-mixing nutrients ==
If you intend to mix nutrients in water in large quantities and leave it to sit for a period of time one should consider the nutrients used and how they may change over time. When mixing organic nutrients in water they will respire aerobically for a period of time, until they run out of oxygen and then begin to respire anaerobically. This destroys some of the bacteria's capabilities and makes itfor a less effective feed. The water will begin to smell like a pond or an asshole when the bacteria begin to respire anaerobically which is a surefire way to tell. Synthetically derived nutrients may last longer in water but can also become less effective as some nutrients may combine to create less accessible forms of the nutrient for the plant.
==Methods of Nutrient delivery ==
=== Via growing medium ===
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