1、Effects of different Mg fertilizer sources on the magnesium availability in soils

The three magnesium fertilizers vary greatly in their solubility in water, affecting the availability to plants once applied to the soil. Whereas Kieserite dissolved gradually and SMS immediately, Mg-oxide released only insignificant amounts of Mg in cool water (20 °C) after intensive stirring.

2、Crop response to magnesium fertilization as affected by nitrogen supply

The maximum yield forming effect of fertilizer magnesium can occur under conditions of relatively low nitrogen supply (soil + fertilizer nitrogen), provided there is a sufficiently high supply of magnesium.

3、Magnesium mobility in soils as a challenge for soil and plant analysis, magnesium fertilization and root uptake under adverse growth conditions

Due to its unique chemistry magnesium (Mg) is subject to various cycling processes in agricultural ecosystems. This high mobility of Mg needs to be considered for crop nutrition in sustainable agricultural systems.

4、Nitrogen, phosphorus, calcium, and magnesium applied individually or as a slow release or controlled release fertilizer increase growth and yield and affect

Fertilizer application increased Fe, Mn, and Zn content of several plant tissues. None of the labels of fertilizers applied stated that they contained micronutrients; however, small amounts of contamination were possible.

Effects of applying magnesium fertilizer on Chinese cabbage's yield, nutrient elements' uptake and soil's fertility

So, a field trial, with applying different rates of magnesium fertilizers on the basis of farmer routine fertilization, was conducted to test the effects on vegetable's yield, nutrient elements' uptake and soil's basic fertility in a red-soil vegetable field.

Effect of Two Magnesium Fertilizers on Leaf Magnesium Concentration, Yield, and Quality of Potato and Sugar Beet

Twelve field experiments were conducted to study the impacts of calcined magnesite and Kieserite fertilizers on yield, quality and leaf concentrations of magnesium (Mg) in potatoes and sugar beet.

Evaluating heavy metal accumulation and potential risks in soil

The objectives of this research are: (1) To illustrate the effect of magnesium slag-based fertilizer on HMs accumulation in two typical soils; (2) To indicate the health risk of maize grain by application of magnesium-slag fertilizer.

(PDF) The significance of magnesium for crop quality

The required efforts stimulating production but protecting the environment focus on increasing unit productivity of fertilizer N. Magnesium, owing to its biological functions in plants, should play a much more important role In modern agriculture controlling N economy of crop plants and, consequently, nitrogen dispersion in the environment.

Effects of Magnesium Compound with Fertilizer on Daylily

Therefore, the application of magnesium compound with fertilizer is an optimum method for improving red soil quality.

Magnesium in crop production, food quality and human health

Grass tetany, representing a serious disorder in ruminants, is also induced by heavy application of K fertilizers into soil. Therefore, besides Mg concentrations, attention should be also paid to K/Mg ratio in leaf tissue of grasses grown in the regions where grass tetany is a potential risk.

There is no fixed answer to the frequency of magnesium fertilizer application, as it depends on multiple factors, including soil type, crop species, soil conditions, and climate. based on agricultural experts' recommendations and practical experience, the following conclusions can be drawn:

1. Soil Testing is Key: Conducting a soil test before applying magnesium fertilizer is crucial. This helps determine the soil's magnesium content, guiding whether and how much magnesium needs to be supplemented. If soil magnesium levels are low, regular applications (e.g., every 2-3 years) may be required to meet crop demands.

2. Consider Crop Needs: Different crops have varying magnesium requirements. For example, leafy vegetables typically rely more on magnesium than root crops. Additionally, growth stages affect demand—crops may need more magnesium during early growth, while requirements decrease later. Adjust application frequency accordingly.

3. Weather Conditions: Climate impacts magnesium availability. In dry or hot conditions, soil magnesium can leach or degrade, leading to deficiencies. Here, increase application frequency. In contrast, moist or cool conditions may fix magnesium in the soil, reducing crop uptake. Lower application frequency may be needed in such cases.

4. Soil Management: Practices like deep tillage improve soil structure, aeration, and water retention, enhancing magnesium absorption. Crop rotation and intercropping also optimize soil health, reducing disease risks and improving nutrient utilization.

5. Rational Fertilization: Use slow-/controlled-release fertilizers to minimize magnesium loss and maximize crop uptake. Balancing nitrogen, phosphorus, and potassium ratios ensures no single nutrient overwhelms others, preventing imbalances.

6. Integrated Management: To ensure adequate magnesium, consider soil conditions, crop needs, weather, application methods, dosages, and timing. A scientifically designed fertilization plan guarantees optimal magnesium supply for healthy crop growth.

there is no one-size-fits-all rule for magnesium fertilizer frequency. Decisions should integrate soil tests, crop requirements, climate, and management practices. With scientific approaches and reasonable management, crops can receive sufficient magnesium for robust development.