The value of foliar feeding was proven many years ago at Michigan State College by Dr. H. B. Tukey. The project used radioactive tagged nutrients to prove that plants absorb nutrients not only through the roots, but also through the foliage, the fruit, the twigs, the trunk and even the flowers. Plants can absorb nutrients 8 to 10 times more efficiently through their leaf surfaces than through their roots. When applying nutrients to the leaf, the nutrients move through the stomata downward through the plant--at the rate of about a foot an hour. When applying nutrients to the leaves in soluble forms, as much as 95 percent of what is applied may be used by the plant. If a similar amount is applied to the soil about 10 percent of it is available. Foliar feeding is effective even on dormant plants and trees. As a result, spraying foliage with liquid organic nutrients can produce remarkable results without reliance on synthetic fertilizers.
Although synthetic fertilizers can give plants a quick boost, they fail to improve soil texture, microbial activity and the long term soil fertility ....
Pročačkajte malo po netu. Folijarna prehrana je izvrsna. Već sam se više godina uvjerio u to.