Usage of magnesium sulfate heptahydrate vegetables

In the production of vegetables in the agricultural field, magnesium sulfate heptahydrate is a dual nutrient fertilizer. Sulfur and magnesium are both trace and nutrient elements in vegetables, which can not only increase vegetable yield but also improve vegetable quality. However, these effects must have the correct method of using magnesium sulfate heptahydrate for vegetables.

raw vegetables

1. Method of using magnesium sulfate heptahydrate as a base fertilizer:

Before plowing, mix magnesium sulfate heptahydrate with other fertilizers or organic fertilizers and sprinkle them on the soil. Generally, one acre of magnesium sulfate is used for agricultural purposes, costing about 10 kilograms.

Used as a base fertilizer

2. Method of using magnesium sulfate heptahydrate as topdressing:

Topdressing with magnesium sulfate heptahydrate requires early application, which can be done by furrow or mixing with water. Generally, 10 to 13 kilograms of magnesium sulfate can be applied to each acre of land, and 250 to 500 grams of magnesium sulfate can be applied to each fruit tree; After applying sufficient magnesium fertilizer, it can be applied to vegetable crops every few crops, without the need to apply it every season.

3. The usage method of magnesium sulfate heptahydrate for foliar spraying:

To correct the symptoms of magnesium deficiency in vegetables, magnesium sulfate heptahydrate can be used for root dressing, but foliar spraying does not have a lasting effect. In order to achieve the effect, it should be sprayed several times continuously. foliar spraying of magnesium sulfate can be carried out in the early and middle stages of crop growth; The spraying concentration of magnesium sulfate during the growth period of vegetables is 0.2% -0.5%, and the general application amount of magnesium fertilizer solution per mu is approximately 50-150 kilograms.

During the reproductive period, magnesium deficiency may occur - angular loofah is more prone to magnesium deficiency

4. Agricultural magnesium sulfate heptahydrate should not be used in excessive amounts:

Magnesium sulfate fertilizer heptahydrate belongs to the category of trace element fertilizer, and should not be used too much in agricultural vegetable cultivation. If it is mixed with liquid fertilizer, the concentration generally does not exceed 0.5g/L; If solid fertilizer is used, approximately 50kg of magnesium sulfate mixed with 1500kg of farmyard manure is applied per acre. If the amount of magnesium sulfate heptahydrate is too large, it will affect the normal growth and quality of vegetables.