What is the role of boron fertilizer? What are boron fertilizers?

What is the function of boron fertilizer? What kind of boron fertilizer do you have? Please also ask netizens to help introduce boron as one of the essential nutrient elements for plants, but the results of the second national land census show that 90% of the soil in China is boron deficient, and the area of serious boron deficiency has reached more than 70%. But what effect does boron play on crops? What kinds of boron fertilizers can be applied to crops? There are still a lot of netizens do not understand. Therefore, the farming network collates the effects and types of boron fertilizer on crops, which are listed in detail below for netizens' reference. The effect of boron fertilizer on crops: first, boron can participate in the transport and metabolism of carbohydrates in crops and increase the sugar composition of crop fruits, thus increasing the seed setting rate of crops and the fruit setting rate of fruit trees. Second, boron can promote crop cell elongation and cell division, which is beneficial to the growth and elongation of crop root system. Third, boron can make the crop pollen sprout quickly, and make the pollen tube elongate rapidly into the ovary, which is beneficial to fertilization and seed formation. Effect 4. Boron can improve the nitrogen fixation ability of legume vegetable rhizobia and increase the amount of nitrogen fixation. And can enhance the ability of cold resistance, drought resistance and disease resistance of crops. Common symptoms of boron deficiency in crops: in general, severe boron deficiency will affect the normal growth of leaves, flowers, fruits, roots and stems of crops, resulting in abnormal external morphology. According to these anomalies, the status of boron deficiency in crops can be directly judged. When crops are boron deficient, young parts often appear, new leaves are deformed, wrinkled, irregular chlorosis between veins, often showing scorched spots. The leaves of crops tend to become thicker and brittle, deformed, and turn into dark yellow-green or purplish red spots, with short branches and cork. The root system becomes thick and short, brown, the root system is underdeveloped, and the growth point often dies. The common diseases are sugar beet heart rot, radish canker, celery stem cracking, cherry fruit shrinkage, grape flower and fruit drop, banana leaf deformity, kiwifruit drop and so on. Symptoms of excessive boron fertilizer in crops: if excessive boron is applied, it may lead to boron poisoning. Boron poisoning is often manifested as the tip and edge of mature leaves, leaf tip yellowing, chlorosis between leaf veins, and finally necrosis. If the seedlings contain too much boron, part of the boron will be discharged by the way of leaf spitting. Crops sensitive to boron poisoning are grapes, peaches, figs, beans and cucumbers, which should not be excessive when applying boron fertilizer. Boron fertilizer common types: 1, borax: generally white powder, boron content of 11.3%, mainly used for soil fertilization, low solubility in cold water. 2. Boric acid: generally white fine crystal or powder, with a boron content of 17.5%, can be dissolved in water and is often used for foliar spraying. 3. Boron mud: generally from the residue after the production of borax and boric acid, the boron content is 0.5%-2.0%, and the magnesium oxide content is 20%-30%. Because of its low boron content, it is often used as base fertilizer. 4, boron-containing calcium superphosphate: generally grayish yellow powder, boron content of 0.6%, soluble in water, used for spraying will waste other elements, so it is often used in base fertilizer. 5. Boron-magnesium phosphate fertilizer: it belongs to a compound fertilizer containing large and medium elements (phosphorus, magnesium) and trace elements (boron), which contains about 0.6% boron, 10% magnesium and 6% phosphorus. 6. Suele boron, polyboron, holding boron: it belongs to water-soluble solid boron fertilizer, which has the advantages of instant solution and good mixing, so it is often used for foliar spraying. What is irrigating fertilizer? Determination of soil acidity and alkalinity