Many farmers' friends know that the most demanding growth of crops is the three elements of NPK. The trace elements such as zinc, iron and calcium are less demanding, but they are also essential. Whether it is crops or fruit trees, the yellowing of leaves is the most common kind of disease. If the leaves are yellow, except for the yellow leaves caused by climate and water shortage, most farmers’ friends will immediately think that it is caused by iron deficiency. Iron will cause the new leaves to turn yellow and white, but the veins are green. This is the most basic symptom. Some crops such as apple trees, corn, and blueberries often have yellow leaves. Crop yellow leaves can cause photosynthesis of crops to weaken, roots are slow to absorb nutrients, and plant resistance is worse. In the long run, plants will die prematurely. So how do we control the yellow leaf phenomenon of crops? Let's continue to look down. Many farmers will say that most of the yellow leaf disease is iron deficiency, as long as iron is added. The most widely used fruit tree flower is ferrous sulfate. Just pour the ferrous sulfate to the crop and add iron. The yellow leaves can be improved. Actually, this is a misunderstanding. Ferrous sulfate does not supplement the crop with iron, but regulates the pH of the soil. If you simply add iron, it does not improve the yellowing of crop leaves. Why do you say that? Everyone knows that the iron required for crop growth is a trace element. The iron in the soil can safely meet the growth of the crop, while the yellowing of the crop leaves is caused by the imbalance of soil pH, which means that the soil is too alkaline and the crop is iron. The absorption of the elements is weakened, which causes the yellowing of the crop leaves, and the ferrous sulfate is to adjust the pH of the soil, so that the soil can restore the acidity and alkalinity, thereby improving the yellowing of the crop leaves. Like family-planted blueberries, gardenia and other flower plants like acid soil, the leaves are very easy to yellow, so in addition to adding ferrous sulfate, you can use rice water in daily management, without salt vinegar and water can also prevent The leaves of the crop are yellow. For the yellowing of leaves caused by iron deficiency in corn and wheat field crops, it is recommended that the growers use 60-90 kg of organic fertilizer mixed with 80 kg of ferrous sulfate per acre to reduce the yellowing of corn. Many friends who raise flowers may say that it is not so much trouble for plants to lack iron. Just by embedding some iron in the soil, it can be solved. But is this really the case? The truth is coming. Taking rust as an example, it is often seen in daily life, and it is used as a pigment in various food additives. So can rust (iron oxide) really make up iron? Obviously, the most widely used is ferrous sulfate, which has a much higher absorption rate than iron oxide. Scientific research has found that plants on bivalent iron (ferrous sulfate) are more conducive to plant absorption than ferric iron, which means that organic iron has the best absorption effect. And we usually see trivalent iron oxide, the worst iron supplement, so the iron rust is difficult to iron, because it is difficult to absorb the body and plants. Therefore, it is unscientific and unreasonable to embed iron products such as iron nails in the roots or pots of plants. Therefore, if it is determined that the crop is caused by iron deficiency, it is necessary to supplement the ferrous sulfate in time to adjust the soil pH to facilitate the absorption of iron in the soil by the crop. Manual Massage Collapsible Foot Spa Massager The Manual Massage Foldable Foot Spa Massager is a portable compact device designed to give your feet a relaxing massage experience. Its foldable design makes it easy to store and transport, making it ideal for the frequent traveler. Manual Massage Collapsible Foot Spa Massager,Foot Bath Massager Machine,Electric Heated Foot Spa,Foot Bath Tub Huaian Mimir Electric Appliance Co., LTD , https://www.mmfootspabath.com
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