Is magnesium sulfate heptahydrate effective for fruit tree growth

       Magnesium sulfate heptahydrate (MgSO ₄· 7H ₂ O) is a commonly used agricultural fertilizer, which contains two important intermediate elements, magnesium and sulfur, and has a significant promoting effect on the growth of fruit trees. The following are the specific effects and usage methods of magnesium sulfate heptahydrate in fruit tree growth:
       1、 Promote fruit tree growth and increase yield
       Magnesium is one of the core components of chlorophyll, which participates in photosynthesis and can promote the efficiency of photosynthesis in fruit trees, thereby increasing the synthesis of carbohydrates. Sulfur is an important component of proteins and enzymes in plants, which can promote root growth and metabolism in fruit trees. Research has shown that the rational application of magnesium sulfate heptahydrate can increase the yield of fruit trees by 15% to 50%.
       2、 Improve fruit quality
       Magnesium sulfate heptahydrate can promote the synthesis of vitamin A and vitamin C in fruit trees, thereby enhancing the nutritional value of the fruit. In addition, it can also increase the sugar content in the fruit, making it sweeter. For example, using magnesium sulfate heptahydrate on citrus fruit trees can significantly improve the flavor and taste of the fruit.
       3、 Preventing and correcting magnesium deficiency symptoms
       When fruit trees lack magnesium, their leaves may exhibit symptoms such as yellowing and curling, which can affect photosynthesis and growth. Magnesium sulfate heptahydrate can be replenished in a timely manner through soil fertilization or foliar spraying to prevent and correct these nutrient deficiency symptoms. For example, for fruit trees with yellow leaf symptoms, magnesium sulfate heptahydrate can be dissolved in water and sprayed on the leaves at a concentration of generally 0.5% to 1.0%.

       4、 Enhance the stress resistance of fruit trees
       Magnesium can enhance the disease resistance and stress resistance of fruit trees, helping them resist pests, diseases, and adverse environmental conditions. For example, under drought or low temperature conditions, the application of magnesium sulfate heptahydrate can improve the stress resistance of fruit trees and reduce the impact of environmental stress on their growth.
       5、 Usage and precautions
       Base fertilizer: Before cultivating the land, mix magnesium sulfate heptahydrate with other fertilizers or organic fertilizers and apply it, with a dosage of about 10 kilograms per acre.
       Topdressing: Adopt ditch application or water flushing application, apply 250-500 grams per fruit tree.
       Foliar spraying: In the early or middle stage of fruit tree growth, spray a solution of magnesium sulfate heptahydrate with a concentration of 0.5% to 1.0%. Generally, the amount of solution sprayed per acre is 50-150 kilograms.
       It should be noted that magnesium sulfate heptahydrate is a trace element fertilizer and should not be used in excessive amounts. If preparing liquid fertilizer, the concentration generally does not exceed 0.5g/L. Excessive application may lead to soil acidification or affect fruit quality.
       Magnesium sulfate heptahydrate is an efficient and multifunctional fertilizer for fruit trees, which can promote growth, increase yield, improve fruit quality, and enhance the stress resistance of fruit trees. By applying magnesium sulfate heptahydrate reasonably, fruit farmers can achieve better economic benefits and fruit quality.