What are the functions and benefits of magnesium fertilizer? Read this one article to understand
What are the functions of magnesium fertilizer? How should magnesium fertilizer be applied? We ask netizens to help explain. Magnesium fertilizer generally refers to fertilizer containing the element magnesium, which after application can provide magnesium to the soil. The more common fertilizers containing magnesium include magnesium sulfate, magnesium chloride, magnesium carbonate, magnesium nitrate, magnesium oxide, magnesium phosphate fertilizer, etc. Therefore, Zhongdi Web has compiled...
What are the functions of magnesium fertilizer? How should magnesium fertilizer be applied? We ask netizens to help explainMagnesium fertilizer generally refers to fertilizer containing the element magnesium, which after application can provide magnesium to the soil. The more common fertilizers containing magnesium include magnesium sulfate, magnesium chloride, magnesium carbonate, magnesium nitrate, magnesium oxide, magnesium phosphate fertilizer, etc. Therefore, Zhongdi Web has compiled the functions and application methods of magnesium fertilizer, listed below for netizens' reference.
The effects of magnesium fertilizer on crops:
Magnesium is a component of plant chlorophyll and phytin, and is the only metal element in the chlorophyll molecule. Magnesium plays an important role in photosynthesis. Magnesium ions are activators of various enzymes, promoting the transformation and metabolism of carbohydrates in crops and promoting the synthesis of fats and proteins.
Magnesium can also promote the absorption of silicon and phosphorus by crops, thereby improving crop disease resistance. Magnesium can also promote the formation of vitamin A and vitamin C in crops, thereby improving the quality of fruits, vegetables and other crops.
Application methods of magnesium fertilizer:
Magnesium fertilizer can be used directly as base fertilizer, topdressing and foliar fertilizer. For example, calcium magnesium phosphate fertilizer and magnesium ammonium phosphate, which are slightly soluble in water, can be used as base fertilizer. The application rate can be calculated according to magnesium content, generally applying 1~1.5 kg of magnesium content per mu.
For example, magnesium oxide and magnesium sulfate can be used as topdressing for crops. When using magnesium fertilizer for topdressing, it needs to be applied early, and can be applied in furrows or diluted with water. Generally, 10~13 kg of magnesium sulfate is suitable per mu of land, and generally 250~500 grams of magnesium sulfate can be applied per fruit tree. After applying sufficient magnesium fertilizer, it can be applied again after several crop cycles, and it is not necessary to apply it every season.
For example, magnesium nitrate can be used for foliar spraying of crops, mainly for magnesium deficiency symptoms caused by root system obstacles in fruit trees, solanaceous fruits, vegetables and legume vegetables. The commonly used magnesium nitrate concentration is 1%. Because the effect of foliar spraying is not long-lasting, several consecutive sprayings should be carried out to achieve the effect.
Common varieties of magnesium fertilizer and application methods:
The magnesium content of commonly used magnesium fertilizers is 8%~20% for calcium magnesium phosphate fertilizer, about 10% for magnesium sulfate, about 25% for magnesium chloride, and 11%~13% for dolomite powder. For acidic soil, applying calcium magnesium phosphate fertilizer and dolomite powder is better; for alkaline soil, applying magnesium chloride or magnesium sulfate is suitable. It can be used as base fertilizer or topdressing. Calculated as Mg, apply 1~1.5 kg per mu. For citrus and other fruit trees, apply 0.5 kg of magnesium sulfate per tree. Magnesium sulfate is a water-soluble magnesium fertilizer and can be used as root topdressing, with a spray concentration of 1%~2%, spraying about 50 kg of solution per mu.
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