Abstract: Iron nails inserted in pots can supplement iron elements, which can prevent new leaves yellowing, slow growth, non-flowering, and leaf fall caused by flower due to iron deficiency. However, the iron ions freed from the iron nails are very limited and have no therapeutic effect on flowers that have already suffered from iron deficiency yellowing disease. In addition, iron nails can only supplement iron in small amounts, and cannot regulate the pH of the soil, so iron nails cannot completely replace ferrous sulfate.
flower
In the process of raising flowers, some old gardeners will insert a few iron nails in the pots, saying that doing so can make the flower leaves more emerald green, grow better, and prevent yellow leaves. Some flower lovers scoffed at this, feeling that it was superfluous and had no effect. Some flower lovers are convinced that iron nails are really useful for the growth of flowers. Is it good to insert iron nails in the pot? What's the use? Can it replace ferrous sulfate? Let's analyze these problems.
Iron nails
<h1>What effect does iron have on the growth of flowers and plants</h1>
The elements required for the growth of flowers and plants can be roughly divided into two kinds, one is an essential element, one is a beneficial element, the so-called essential element is essential for growth, the so-called beneficial element is that flowers and plants can grow without them, but when there are them, they can be icing on the cake. Among the essential elements, it is divided into two kinds: essential large elements and trace elements, the necessary large elements are mainly nitrogen, phosphorus, potassium, and the essential trace elements include iron, manganese, zinc and so on. Therefore, iron is an indispensable trace element for the growth of flowers and plants, and it is the largest demand for trace elements, when the supply of iron elements is insufficient, flowers and plants will grow unhealthy, and even life-threatening.
Iron deficiency yellow leaves
So what is the use of iron for the growth of flowers and plants? Its main function is to synthesize chlorophyll, making the leaves of flowers and plants greener. When the chlorophyll of flowers and grasses is sufficient, photosynthesis is sufficient, and the synthesis of organic matter is more, and the growth will be vigorous, the branches will flourish, and the flowers will blossom and bear more fruits. If the flowers are iron deficient, the chlorophyll content is reduced, the leaves are yellow, and the photosynthesis is weakened, the growth will become sick and gradually die. This is why the color of flowers and grass leaves can reflect the growth trend, because the quality of leaf color is directly linked to photosynthesis, and photosynthesis is an important way for inorganic matter to become organic matter.
<h1>It's not good to have iron nails in the pot</h1>
The main purpose of inserting iron nails in pots is to supplement iron elements and prevent flowers and plants from changing leaf color and poor growth due to iron deficiency during growth. Therefore, the starting point of iron nails in the pot is good, to a certain extent, it can prevent iron deficiency yellowing disease, and it has an auxiliary effect on maintaining the emerald green of the leaves (especially new leaves), improving photosynthesis, and promoting growth.
Some flower lovers will question this, thinking that the iron of the iron nails cannot be absorbed by the flowers and grass, so it is useless to insert iron nails. Let me explain this problem, iron in the air will slowly be oxidized into iron oxide or ferrous oxide, in this process there are divalent iron ions that can be absorbed by flowers and plants free. In addition, many flowers and plants like slightly acidic soil, the soil contains humus, in such a weak acid environment, iron will also free divalent iron ions for flowers and plants to absorb and utilize. Of course, the speed of divalent iron ions to free out is very slow, the amount is also very limited, this is not important, the important thing is that the flowers and grass can absorb on the line, because the iron element itself is a trace element for the flowers and plants, only a very small amount of demand, more will be wasted.
<h1>Can iron nails in flower pots replace ferrous sulfate</h1>?
Iron nails in flower pots are not a complete substitute for ferrous sulfate. First of all, the iron ions released by the iron nails for the flowers and plants to absorb are very limited. As mentioned earlier, the iron nails inserted in the pot can only slowly and slightly release divalent iron ions that can be absorbed by flowers and plants, which has a certain auxiliary effect on preventing yellowing of flower and grass leaves. However, when encountering extreme situations, flowers and plants lack a large amount of iron, and the iron ions supplemented by iron nails become a drop in the bucket and difficult to solve the problem. Ferrous sulfate is a targeted iron supplement reagent, which contains a large number of divalent iron ions that can be absorbed by flowers and plants, and the effect is fast.
ferrous sulphate
Secondly, iron nails can only release iron ions for flowers and grass to absorb, and can not change the pH of the soil where flowers and plants are planted, ferrous sulfate can not only supplement iron, but also play a role in acidifying the soil, so the effect of using ferrous sulfate is incomparable with the use of iron nails. Because the acidity and alkali of the soil have a great influence on the solubility of iron, in acidic soil, iron ions can be well dissolved, and in alkaline soil, especially in calcareous soil, the solubility of iron will drop very low, and flowers and plants are prone to iron deficiency yellowing. That is to say, the iron nails inserted in the pots of acidic soil can indeed replenish the iron element and make the flowers and grass leaves emerald. However, if the iron nail is inserted into the pot of neutral or alkaline soil, the iron ions are very rare and rare, and basically do not play any role.
<h1>How to use iron nails and ferrous sulfate reasonably</h1>
1. Insert iron nails in daily pots to prevent iron deficiency yellow leaves
When the flowers and grass are relatively healthy and the conditions are relatively stable in all aspects, we can insert a few iron nails in the pot to prevent iron deficiency yellow leaves. In particular, some flowers that are more sensitive to the supply of iron elements, such as iron trees, gardenias, jasmine flowers, rhododendrons, etc., are better than not inserting iron nails. If you don't like to put it in a pot that doesn't look good, you can put it on the bottom of the pot when changing pots and soil, and they will silently emit light and heat for the growth of flowers and plants.
2. The effect of inserting iron nails in flower pots in alkaline areas is not good
If the water and soil in the area are alkaline (the water and soil in many parts of the north and northwest of China are neutral or alkaline), the effect of inserting iron nails in the pot to supplement iron elements is not good, because in the medium and alkaline soil, the solubility of iron ions is very low. It is recommended that while inserting iron nails in the pot, the flowers and grasses are watered with a little white vinegar water every half a month (a few drops are enough when watering), which plays the role of acidifying the soil, so that the solubility of iron can be improved. Or simply water a thousand times the ferrous sulfate solution every half a month during the peak growing season, the effect is better, don't insert any iron nails.
Flower soil
3. When flowers have developed iron deficiency yellowing disease, ferrous sulfate should be used
If the flowers at home have been yellowed by the new leaves due to iron deficiency (the specific symptom is that the flesh of the new leaves is yellow and white, and the green veins of the leaves are clearly visible), it is too late to use iron nails to supplement iron, and it cannot make the yellowed leaves green, nor can it stop healthy leaves from continuing to turn yellow, because the speed of iron ions released by iron nails is too slow, the amount is too small, prevention can be, and treatment can not be cured. At this time, ferrous sulfate should be used to acidify the soil, quickly replenish iron ions, and curb the further deterioration of yellowing. Treating the yellowing of flowers with ferrous sulfate, it is recommended to use 1000 times the solution of ferrous sulfate every ten days, which can be sprayed foliarly or irrigated, and the yellowed leaves will gradually turn green after three consecutive uses.
4. When the temperature is high, iron sulfate is used in advance
Some acid-loving flowers are prone to new leaves yellowing and whitish iron deficiency symptoms in the summer, such as the aforementioned iron tree, jasmine, gardenia, osmanthus flower, rhododendron, geranium, etc., because when the temperature is high, the water evaporation rate is fast, and the free iron ion content in the soil will be reduced. Therefore, we should use ferrous sulfate once or twice for these flowers before the arrival of high temperature weather, replenish iron in time, and acidify the soil. Instead of waiting until there are already yellow leaves to replenish, at that time, not only the growth of flowers is affected, but also a lot of trouble to treat.
5, ferrous sulfate use do not overdose
Although it is said that sufficient iron can make the leaves of flowers and grasses thick green and help grow, when used in excess, it will still become a killer of flowers and plants. When the concentration of ferrous sulfate is too high and used too frequently, it will produce fertilizer damage, burn roots and leaves, and even burn the whole pot of flowers and grass to death. Some flower friends spray flowers with ferrous sulfate after the leaf surface will leave large and small spots, and even the leaves will dry out piece by piece, which is caused by the concentration or frequency is not well grasped. Long-term use of large amounts of ferrous sulfate will make the soil overacid, which is not conducive to flower growth, slow growth, yellow leaves falling or the whole plant dead phenomenon. It is recommended to use a concentration of 800 to 1000 times, once a month during prevention and every ten to fifteen days during treatment.
Ferrous sulfate hypertrophy
Summary: Iron nails inserted in pots can supplement iron elements, which are good for improving leaf color, promoting growth, and preventing yellowing disease. However, the effect of using iron nails to supplement iron in potting soils of different natures is not the same, the effect is good when potting soil is acidic or weakly acidic, and the effect is poor when potting soil is neutral or weakly alkaline. Iron nails in pots can not completely replace ferrous sulfate, in the case of flowers and plants have yellowing disease, high temperatures, pot soil alkaline, the use of ferrous sulfate effect is far better than the use of iron nails. Therefore, the insertion of iron nails in the pot can only play a role in preventing yellowing disease, and the treatment of yellowing disease of flowers and grasses also requires the use of ferrous sulfate.
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