What about the "undernutrition" of crops?

What about the "undernutrition" of crops?
The lack of nutrients in crops can lead to a "nutrient deficiency" in crops, and the "excess" of certain nutrients can often lead to a "lack" in another nutrient, or cause crops to grow "brutal" or "Prematurity" and other abnormal phenomena, there is no doubt that the crops fail to yield. Nitrogen, phosphorus, potassium and other large and medium-sized elements have the characteristics of "reuse" in the crop. When the crop lacks these elements, they can be "re-used" by transferring from the lower old leaves to the upper new leaves. Therefore, first of all, the symptoms of deficiencies appear on the lower “old leaves”; trace elements are poorly “reusable” in the crops, and their symptoms are most likely to be expressed in the “upper” “new tissues”. There are symptoms of deficiency and some of the appearance is obvious. You can prescribe the right medicine, but in most cases it is difficult to accurately determine what elements the crop lacks. "Cu deficiency and copper supplementation" and "boron deficiency and boron supplementation" are simple and are not easy to operate. Both "over" and "inadequacy" will cause greater economic losses. Not to mention that the average farmer is not an agricultural expert and it is difficult to "complain" "It is difficult to grasp the "heating time" when taking medicine. The simplest, most practical, and most economical approach is to “prevent” the occurrence of this condition, or, once it occurs, be solved by the metabolism of the crop itself. In general, prevention should not use chemical agents, and biological promotion of Changling can achieve the combination of “prevention of disease”, “treatment”, and “conditioning”. It is a kind of microbial preparation and it is a typical "Chinese medicine type" ecological preparation. The microorganisms and their metabolites supplement, condition and regulate the growth and development of crops. It can be called an ecological “nanny” without any side effects. The role of micro-organisms in promoting the growth of production has been highlighted in the “two or two years” – less use, more economic benefits, no need to “cut” 1,000 pounds, and may use “increased production” of 1200 pounds.
Jinbao Biotechnology is a new high-concentration, full-solubility new leaf surface replenisher developed by applying the latest international bio-engineering technology and combining the characteristics of various economic crops' physiological fertilizer requirements. Mainly through the leaves to quickly replenish the various nutrients required in the plant, to promote rapid growth of plants, quickly alleviate the weak seedlings grow slowly, lobular, yellow leaves, plant premature aging, small flowers, small fruit, calcium deficiency, zinc, boron, iron, etc. Physiological symptoms. Cost-effective, effective, without hormones. Its characteristics are reflected in: (1) The effect is magical, increasing production significantly. After the application of microorganisms to promote the growth-promoting spirit (promoting growth-promoting agents), the physiological symptoms of weak seedlings such as slow growth, leaflets, yellow leaves, premature plant failure, small flowers, calcium deficiency, zinc, boron and iron can be quickly relieved. It is used continuously for more than two times during the whole growth period, and the increase rate can reach 20%. (2) Fertility is fast and lasting. 24 hours after spraying can be effective, immediate, effective period of more than a week. (3) Wide application range. Applicable to all kinds of vegetables, fruit trees, flowers, lawns, pastures and green seedlings.