You can increase productivity if zinc sulfate is used. This is a universal fertilizer suitable for flower, berry, vegetable and fruit crops. Zinc is necessary for plants to grow and develop. It will be irreplaceable during the fruiting period.
Why do plants need zinc?
The need for useful trace elements in different types of crops is different. But the manifestations of deficiency are similar. With a lack of zinc, the plants will have small sheets. Fruits on them are rarely formed, they will be of irregular shape.
For sufficient intake of zinc in plants in the soil, this trace element must be in a concentration of 0.5 to 0.25 mg / kg. At the same time, it can penetrate into plant cultures from water-soluble forms. But on calcareous soils it practically does not dissolve. Because of this, the level of its entry into plants decreases. The availability of zinc is also deteriorating when phosphate fertilizers are applied to the soil.
The most pronounced lack of this trace element is visible on apple trees, grapes, pears. It is also noticeable in appearance of citrus fruits, grains and some types of vegetable crops. You can change the situation if you use zinc sulfate. The use of this fertilizer must be carried out in accordance with established standards. This is the only way to improve the condition of crops and increase their productivity.
Fertilizer Rules
For the improvement of grain, fruit, vegetable and flower crops, experienced farmers are advised to use zinc sulfate. A solution of this element is applied directly to plants. If possible, try to spray both the top and bottom of the leaves. This will contribute to improved absorption of trace elements.
For spraying, it is necessary to prepare a solution. To process berry, fruit crops and flowers, it is enough to dilute 3 g of zinc sulfate in 10 l of water. You can fill cabbage and cucumbers if you mix 5 g of fertilizer in the same amount of water. But for the processing of tomatoes and various root crops, you need 10 g of zinc sulfate.
Spraying is carried out only in calm and dry weather. Processing is best done in the evening or morning hours, avoiding scorching sunlight.
Zinc sulfate can also be applied to the soil. This is done on the basis of 1 sq. Km. m of land should receive 1 g of zinc sulfate.
External symptoms of micronutrient deficiency
Zinc sulfate is an excellent antiseptic. This is a crystalline colorless substance, the density of which is 3.74 g / cm 3 . Zinc sulfate is obtained by dissolving in sulfuric acid the elements that make up this metal. The resulting unwanted impurities are removed by special purification.
With a lack of zinc, fruit trees are affected by a rosette disease. Small chlorotic leaves are visible at the ends of the branches. They form a socket. The root growth in this case becomes weak. If the zinc deficiency is too great, then the affected affected branches will begin to die.
A deficiency of zinc is also seen on corn. New leaves will be light yellow or white. On the old, yellow stripes form. The yield of such corn will be low.
Seed treatment
You can get the best yields if you prepare in advance for planting plants. For example, pre-sowing treatment of corn seeds is carried out as follows: they are dusted with a special mixture consisting of 42 g of zinc sulfate and 150 g of talc. This amount is enough to process 1 centner of seed.
Presowing treatment of seeds of other plants can be carried out differently. Many recommend them to soak in water, in which various trace elements are dissolved, including zinc sulfate. But you can put seeds in solutions with fertilizers for no more than a day.