Salt Injury To Plants: How To Save Plants From Salt Damage
The first thing to understand is that the amount of salt in your soil is not necessarily bad for plants. Some studies have shown that even low levels of salts are beneficial to plant health. Soil salinity can vary greatly from one location to another, depending on factors such as temperature, rainfall rate, and other environmental conditions.
However, if it’s too high or too low, then the effects will be different.
Soil salinity affects plants through two main ways: First, it causes water loss. Water loss occurs when salt dissolves into the soil and makes its way out of solution (water becomes less soluble). Second, it causes the roots to lose their ability to absorb nutrients from the soil.
If there is too much salt in the soil, then these effects will occur faster than they would if there was no salt present at all.
If you’ve ever been around a river or pond, you may have noticed that the water level changes with time. When the water level is high, it takes longer for the sediment to settle out and form a smooth surface. This means that there is less chance for any fish to get stuck in the mud.
On the other hand, when there isn’t enough sediment settling out of solution to form a smooth surface, then it takes longer for fish to swim across it.
In the same way, your soil works. Over time, nutrients and minerals settle out of solution. If there isn’t enough soil to allow it to settle out, then you will have nutrient deficiencies in your garden.
The most common nutrient that is lacking for most plants is phosphorus, but many others exist as well.
If there are no pests or diseases to worry about, then salinity is the main danger to your plants that needs to be addressed. Salts can be removed from the soil by watering your garden with purified water, as well as by mulching the soil with gypsum so the salts can be absorbed into a highly insoluble form.
However, it is possible that this won’t be enough to completely save your plants. It depends entirely on how much salt is in your soil and how bad the problem is. If the soil is constantly getting flooded by seawater or brackish water, then there is little that can be done other than to plant your crops in a different area.
If you want to learn more about how to fix salty soil, you should definitely look for an expert in the field or do some research on the topic. You can also ask questions here in this blog if you need more help understanding.
Thanks for reading,
Sources & references used in this article:
Selection of trees for tolerance to salt injury by MA Dirr – Journal of Arboriculture, 1976 – nswooa.ca
Plant responses to salt stress: adaptive mechanisms by JR Acosta-Motos, MF Ortuño, A Bernal-Vicente… – Agronomy, 2017 – mdpi.com
Salt tolerance of plants by L Bernstein – 1964 – books.google.com
Salt stress and phyto-biochemical responses of plants-a review by A Parvaiz, S Satyawati – Plant Soil and Environment, 2008 – 18.104.22.168
Plant response to salt stress and role of exogenous protectants to mitigate salt-induced damages by M Hasanuzzaman, K Nahar, M Fujita – … and responses of plants under salt …, 2013 – Springer