Application of Magnesium Sulfate in Agriculture BY:Lydia
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- publisher
- 、Saskia
- Issue Time
- Nov 13,2025
Summary
Agricultural magnesium sulfate (MgSO₄) delivers essential Mg and S nutrients, boosting chlorophyll synthesis and photosynthesis. It regulates soil pH, improves structure, and enhances salt tolerance. Applied in fruit/vegetable farming, it increases yields, optimizes fruit quality, and addresses magnesium deficiencies. Ideal for soil remediation and stress-resilient crop cultivation.

Application of Magnesium Sulfate in Agriculture
As fertilizer
Providing essential nutrients: Magnesium sulfate is an important inorganic salt compound rich in magnesium, which promotes plant growth. Magnesium is the main component of chlorophyll and protein, and is crucial for photosynthesis and plant growth. Magnesium sulfate, as a magnesium source fertilizer, can provide the magnesium element needed by plants, promote the synthesis of green pigments in plant leaves, and improve the photosynthetic efficiency of plants.
Activate multiple enzymes: Magnesium ions also participate in activating the activity of various enzymes in plants, which are involved in various biochemical processes from photosynthesis to carbohydrate, protein, and lipid metabolism.
Improving soil environment
Adjusting pH: In agricultural production, soil pH is crucial for plant growth. Magnesium sulfate heptahydrate can regulate the pH of soil, making it more suitable for plant growth. At the same time, it can also increase the ion exchange capacity of soil and improve soil structure.
Improving soil structure: Applying magnesium sulfate can increase the magnesium content in the soil and have a significant remediation effect on magnesium deficient soils. This improvement not only enhances soil fertility, but also helps plants better absorb other nutrients. Magnesium sulfate can improve the physical properties of soil, such as increasing soil porosity and water retention capacity, creating a healthier growth environment for plant roots.
Improve plant stress resistance
Application in fruit tree planting: In fruit tree planting, magnesium sulfate can not only promote flower bud differentiation and increase fruit setting rate, but also promote fruit coloring and ripening, significantly improving fruit quality and commercial value. For example, fruit trees such as apples and citrus have a high demand for magnesium, and the application of magnesium sulfate can effectively improve fruit quality and yield.
Application in vegetable cultivation: For vegetable crops, appropriate application of magnesium sulfate can accelerate their growth rate, increase yield and nutritional value. Especially in vegetables such as spinach and beans that require a large amount of magnesium, the effect is more pronounced. Applying magnesium sulfate to vegetables such as tomatoes and cucumbers can significantly improve yield and quality.
