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The improver of alkaline soil -- ferrous sulfate

March 09,2023

The growth process of agricultural material crops is extremely complex and fragile.

A little improper care will lead to rotten roots and seedlings, and even death in serious cases. Therefore, in order to avoid this kind of situation, learning to judge and master the practical methods of field management can ensure the increase of crop yield and income. How do you know whether the soil is acidic or alkaline?

Acidic soil, generally dark in color, is mostly dark brown humus.

The soil is loose and has strong air permeability and water permeability. There is a feeling of "soft" in the hand. After releasing the hand, the soil is easy to disperse and not easy to agglomerate.

The characteristics of alkaline soil are that the soil is white, yellow or has a layer of white powdery material on the soil surface, which is hard, easy to harden into blocks, poor ventilation and water permeability, and has a feeling of "hard and solid" in the hand. It is easy to agglomerate and not disperse after releasing the hand.


Different crops have different requirements for soil, but generally speaking, acid soil has more advantages than alkaline soil. This is mainly because the texture of acid soil is more loose than that of alkaline soil, and it is not easy to agglomerate and harden; Acid soil is also easier to be watered thoroughly and evenly when watering. Therefore, it is necessary to improve the soil when the soil is severely alkaline.

Ferrous sulfate includes  ferrous sulfate monohydrate  and ferrous sulfate heptahydrate. Ferrous sulfate heptahydrate is commonly known as alum, and its molecular formula is FeSO4.7H2O. In agriculture, ferrous sulfate heptahydrate is widely used. Its main purpose is to regulate the soil acidity and alkalinity, and promote the formation of chlorophyll (also known as iron fertilizer), which can prevent and control the use of ferrous sulfate in family flower cultivation caused by iron deficiency. At the same time, ferrous sulfate can be used as herbicide and insecticide. Applying ferrous sulfate to the soil before breeding can prevent fruit and vegetables from producing diseases and pests and inhibit the growth of weeds in the field.

Before applying soil conditioner, the PH value of the soil must be tested first, and the conditioner shall be selected according to the nature of the soil. Common chemical modifiers include lime, gypsum, phosphogypsum, ferrous sulfate, etc. For example, gypsum, phosphogypsum and ferrous sulfate should be applied to alkalized soil; Among ferrous sulfate, ferrous sulfate heptahydrate is used more because of its low price and good effect. For acid soil, calcareous substances shall be applied.

The soil improvement process is divided into two parts: first, soil conservation. It is mainly to take engineering or biological measures to control the amount of soil loss, so as to control the amount of soil loss within the allowable range of loss. Secondly, soil improvement. The purpose is to increase the content of soil organic matter and nutrients, improve soil properties and improve soil fertility. Planting improved plants or applying more farm manure is to increase fertility; Improve soil properties by mixing sand and clay; One way is to change the soil acidity and alkalinity with chemical modifiers.

Ruiqi Chemical will teach you the use of ferrous sulfate heptahydrate soil conditioner.

You can try it:

1. Use as soil conditioner: dig a hole in the middle of the soil, bury ferrous sulfate heptahydrate in the soil, and calculate the amount of ferrous sulfate heptahydrate according to the soil area.

2. For leaf spraying: weigh 10 grams of ferrous sulfate heptahydrate to 4~5 catty of water. Normal growth period, 1-2 times a month. Disease prevention period: once every 10-15 days, 2-3 times in a row.

3. Watering basin soil: 10 grams of water mixed with 7 to 9 catty, about once every 20 days.

Crop cultivation is also a delicate work. It contains not only simple fertilization and cultivation, but also how to cultivate with scientific knowledge, so as to achieve twice the result with half the effort.

Related products:

Ferrous sulfate Monohydrate Powder feed grade: 

Rech Chemical Co.Ltd

Balixiangxie E1-12F NO.459,Furong Road Changsha Hunan China



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