For the structure of leaf, we could known that there is a cuticula on the surface. The leaf epidermis cells are under the culticula and the mesophll cells are under the epidermis cells.However, the nutrition could only be used after it gets into the cells level. In the beginning, there is a kind of view which the foliage nutrition was absorbed through stoma. However, due to the surface tension of liquid or mix solutions, it is hard to get into the cells through stoma. Later on, we find that there are fissures on the cuticula, the cells are getting nutrition through those fissures by biological silks. There silks are working like roots. They transfer the nutrition from surface foliage nutritious liquid to inside cells. In this way, the leaf has the ability of selective absorption which is the same as roots. There for, when we choose to use foliage nutrition, we should understand the mechanism of leaf absorption is selective absorption through the fissures on the cuticula by the biological silk from the leaf cells itself.

Knowing the mechanism of foliage nutrition is doing a great favor for us to choose the best application to take care of plantations. They could be generalized as following:

1.Choose suitable foliage nutrition (Foliage fertilizer)

As it is known to all, there are different growth level of same kind plants. In the beginning period of plant growth, the liquid should be emphasized on the nutritious supply. Using rich-nutritious product when the basic nutrition is in short supply, using adjusting-nutritious for regularly growth.

2.The concentration of foliage nutrition

The result of foliage nutrition’s application has huge relation to do wish applied concentration. In a certain level, the velocity and quantity of absorbed nutrition are growing as the growth of foliage nutrition’s concentration. However, when the foliage nutrition is overdone, the leaf will be suffering the burn for high level and concentrated foliage liquidation. Especially, for micro-nutrients. Furthermore, the range from deficiency to sufficiency is very small, so the control of concentration is very important. The fundamental rule is low concentration and more times.l

3.The PH of foliage nutrition

There are different existing status for different nutritious substance in different PH conditions. In order to gain the maximal benefits of foliage nutrition application, there has be to a suitable PH range. Normally, PH 5-8 is recommended. Lower or higher not only influence the absorption, but also bring deficiency or overdoes damage.

4.Suitable absorption time

The absorption is influenced by various factors. A suitable time for absorption is also necessary. Normally, keeping the leaf moisture for 30mins-60mins is best for absorption. Which is to say, it may not be that good to apply during hot time or rainy day. Because they will cost evaporation or leaching loss. In regular sunny or less cloudy day, apply before 9am or after 4pm is good. If there is suddenly rain after apply within 3hours, then a complementary spray with lower concentration is necessary.

5.Suitable period and position

The different position of plant has different requirement of nutrition and absorption capability. Such as the tender part of plant, normally upper and middle, has better activity. Furthermore, they get better absorption capability. On the other hand, the stoma exists more on the back side of leaf than on the front.

With the knowledge of the mechanism, choosing suitable nutrition with right application time, process and concentration shall help us with our growth. Of course, different regions has it’s own character. For the general condition, We suggest you use suitable or lower concentration but more applied frequency.