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Nutrients: Difference between revisions
→Via growing medium
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=== Via growing medium ===
The most simple method of nutrient delivery is by mixing with the water to be used for watering the cultivar. Take note that the [[Growing_mediums|growing medium]] will affect the stability of the pH in the plant's root zone. Organic soils provide more of a pH buffer than hydroponic systems because, in organic soil, there are other organisms that help regulate pH.
Even though nutrients have been added to the growing medium they will not be bioavailable to the plant instantly. Other organisms help in the process of breaking down nutrients so that they are useable by the cultivar, such as [[Growing mediums#Mycorrhizal Fungi|Mycorrhizal Fungi]].
===Foliar Spray ===
Nutrients can be delivered to the plant when dissolved in water via a fine mist, this is the fastest route of administration. It has been postulated that the size of the droplets has an effect on the efficacy of foliar spray but some studies seem to contradict this<ref>Influence of Droplet Size of Foliar-Applied Nitrogen on Grain Protein Content of Hard Red Winter Wheat 2017 -https://acsess.onlinelibrary.wiley.com/doi/pdf/10.2134/cftm2016.10.0068</ref>. If possible the spray should be applied to the underside of leaves as this is where most stomata reside. Lights should be turned off before foliar spraying to prevent the light lensing through droplets burning the leaf surface.
Foliar spray should not be used to provide emergency nutrients to the plant.
== Sources of nutrients ==
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