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Magnesium Sulphate Heptahydrate Yellow Granular

Magnesium sulphate heptahydrate yellow granulars for agricultural use are a specialized medium-element fertilizer made from high-purity magnesium sulfate heptahydrate through an extrusion granulation process. Their yellow appearance stems from the raw material's characteristics or the coloring process, and does not affect their core efficacy. The granular form effectively solves the problems of traditional powders prone to moisture absorption, agglomeration, and dust generation. Suitable for various fertilization methods, including broadcasting, furrow application, and foliar spraying, they facilitate precise manual or mechanical application.

    Product Features

    1.Dual Nutrient Supply: Magnesium is a core component of chlorophyll, and sulfur is a building block of amino acids and proteins. Magnesium sulphate heptahydrate yellow granular provide plants with both essential nutrients, enhancing photosynthesis, promoting root growth, and boosting plant metabolism, thereby increasing crop yield and quality.

    2.Excellent Physical Properties: Magnesium sulfate heptahydrate yellow granular have low hygroscopicity at room temperature and a stable crystal structure, making them easy to store and transport and resisting clumping. Their granules are easily soluble and dispersed, with a particle size of 3-5 mm, making them suitable for various fertilization methods, such as broadcast, furrow, and hole application, improving fertilizer utilization.

    3.Chemical Stability: Magnesium suphfate heptahydrate is generally stable under normal conditions. Its aqueous solution is neutral, making it suitable for mixing with other fertilizer ingredients to create granular fertilizers. It is resistant to chemical reactions and maintains fertilizer effectiveness.  

    4.Environmentally friendly and harmless: Magnesium sulfate heptahydrate dissociates into magnesium ions and sulfate ions in the natural environment. Both are common ions in nature, non-bioaccumulative, and very safe for both humans and the environment, making it suitable for use as an ecological agricultural fertilizer.

    5.Convenient application: The granular form of magnesium sulfate heptahydrate allows for precise weighing, reducing dust generation during fertilization and minimizing harm to the environment and humans. It also facilitates mechanical fertilization and improves fertilization efficiency.

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    Product Application and Effects

    I. Applicable Crops
    Prioritized for cash crops with high magnesium requirements, such as grapes, citrus, tomatoes, cucumbers, strawberries, and field crops like corn and cotton. This fertilizer is particularly suitable for plots where long-term application of compound fertilizers has led to magnesium deficiency in the soil.
    II. Core Application Parameters
    1. Base Application Rate: Combined with land preparation, broadcast or furrow-dress 20-30 kg per mu (approximately 10-20 cm) of fertilizer, evenly mixing into the tillage layer to provide a base of magnesium throughout the crop's growth period.
    2.Topdressing Rate: During the crop's active growth period (e.g., fruit swelling for fruit trees and fruit set for vegetables), apply 10-15 kg per mu (approximately 10-15 kg) of fertilizer in holes or strips. Water thoroughly after application to avoid direct root contact to prevent root burn.  
    3.Foliar Spray: Dissolve the granules in a 0.2%-0.5% aqueous solution (i.e., 200-500g of granules per 100kg of water). Spray evenly on both sides of the crop leaves. Apply 2-3 times continuously, 7-10 days apart, to quickly alleviate leaf yellowing caused by magnesium deficiency.
    III. Precautions
    1.Avoid mixing with phosphate fertilizers such as diammonium phosphate and superphosphate for long-term storage to prevent chemical reactions and reduced fertilizer efficiency.
    2.Sandy soils have poor nutrient retention, so a "small, frequent application" method is recommended to minimize nutrient loss.

    FAQ

    Q1: What is the payment terms?
    T/T with deposit in advance or L/C at sight.
    Q2: Can the color of product be changed?
    Yes, it can be different colors, the popular colors are blue, green, white. We can also change the color as per customers’ requirement. 
    Q3: Is it possible for customers to use customized bags?
    Yes, customized bags is acceptable. Customers can provide the artwork of customized bags. Or we can design the bags according to customers’ requirement.
    Q4: Is it possible for getting the samples?
    Yes, samples are provided freely. 
    Q5: How do you control the quality of your products? 
    We will do a test by our own lab during the production for every shipment. And we can send our samples to a third party laboratory.

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