Houseplants need nourishment to thrive and thrive, but the best way to fertilize is to look for signs of the plant itself to avoid fertilizing mistakes. The needs of a plant are very different from ours, and over-fertilizing or not fertilizing is one of our common mistakes in plant care. Join us in this article to learn about common fertilizing mistakes and avoid them.
Excessive fertilization
When fertilizing houseplants, it is easy to overdo it and this is a common mistake for beginners. We love our plants and we want to show our interest in giving them all kinds of fertilizers, but this is wrong.
Remember that plants make their main food and do not urgently need artificial fertilizers. Light is their main nutrient and water and soil materials are also useful for them.
Giving too much organic fertilizer to plants has far fewer side effects than too much chemical fertilizer. Fertilizers are concentrated and focus on only one need of the plants, and giving too much to the plants can easily cause an imbalance in the plant.
Here are some ways in which over-fertilizing plants can be used:
Excessive use of late release fertilizers
Use a combination of different forms of fertilizer
Poor soil drainage that leaves residual fertilizer in the soil.
Drying of soil during fertilization
Fertilization during plant sleep
In addition to houseplants, outdoor plants also fall victim to excessive fertilization, and excessive use of fertilizers can cause environmental problems. In this way, excess nutrients can be transported to local groundwater and contaminated.
Symptoms of excessive fertilization
Symptoms that show up quickly after heavy fertilization include:
- Yellowing or wilting of lower leaves
- Browning of the tips and edges of the leaves
Note: Excessive watering can also cause the leaves to turn yellow, so be sure to check the soil moisture before prescribing and treating excessive fertilization. Washing contaminated soil with more water can kill the flooded plant.
- Weakening of the plant
Prolonged accumulation of residual salt from the fertilizer also causes problems. This problem slows down the flow of water to the roots and can weaken the plant. Also, sometimes the shell of excess fertilizer appears on the soil surface and the remnants of fertilizer on clay pots appear as spots outside the pot.
- Slowing plant growth
Other symptoms of excessive fertilization appear over time. Too much nitrogen can cause the stem to loosen and absorb water-sucking pests. Other symptoms include loss of leaves, slow growth or stagnation, or increased root rot.
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Low fertilization
In addition to overeating, fertilizing less than the plant needs is also a common appetite and can have symptoms such as over-irrigation or over-fertilization. Note that a lack of fertilizer is much better than a lot of fertilizer, so if your plant is growing late, check other problems first and then move on to fertilizing in the end.
Symptoms of nutrient deficiency in the soil
A plant that struggles with malnutrition often has the following symptoms.
- Pale leaves and weak stems
- Yellowing of old leaves
Lower, older leaves often look yellow because root energy is used to grow new leaves.
- Slowing or stopping growth
Other symptoms include decreased color or lack of good flowering. Also, plants with nutrient deficiencies are less resistant to pathogens.
Here are some specific signs of a nutrient deficiency in the plant:
1- Nitrogen deficiency
New leaf growth and paleness, light green and yellowing of old leaves can be a sign of the plant’s need for nitrogen. Nitrogen deficiency can also cause stunted growth. Leaf fall may also start from the bottom of the plant.
2 -Potassium deficiency
Plants low in potassium can show light green foliage with dark green streaks. Dark spots may appear on the foliage, or the leaves may rotate inward and become weaker and easier to separate.
3- Phosphorus deficiency
If older foliage turns purple while young leaves are dark green, this could be a sign of phosphorus deficiency. Phosphorus deficiency can also cause late or weak flowering, browning or wrinkling of the leaves.
4- Calcium deficiency
Calcium deficiency can cause yellow and brown spots on the leaves. It also generally slows down plant growth.
5- Magnesium deficiency
Magnesium deficiency leads to weakening of the stems, loss of green color in the oldest leaves and the appearance of yellow and brown spots.
6- Sulfur deficiency
Sulfur deficiency rarely occurs, but when it does, the plant becomes lighter and takes on a pale green appearance. May cause general symptoms similar to nitrogen deficiency.
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