The Benefits Of Foliar Feeding
By Martin Capewell
Dr Tukey’s research used radio-active phosphorous and radio-potassium to spray crops. They then measured with a Geiger counter, the absorption, movement and utilization of these and many other nutrients within plants.
They compared the nutrient uptake at the roots from a soil application versus foliar spraying and found that a 95 percent efficiency of uptake compared to about a 10 percent efficiency from soil applications
They also found the speed of absorption and use by foliar applications was immediate, whereas from soil applications absorption and plant usage was very very slow.
Furthermore in soils that have a high pH or low pH, certain nutrients become unavailable for uptake into the plant in the soil. However with foliar spraying you can get the minerals into the plant until you make corrections to the soil.
Foliar spraying also stimulates nutrient uptake from the soil. The leaves after spraying will generate more carbohydrates that it will transport down to the root and release as exudates. This will stimulate the microbial life in the soil and the microbes will thrive around the root mass making more nutrients available to the plant.
Therefore it is a very good idea to use liquid fertilizers to supplement your nutrient programs to give your crops the optimum amount of nutrients it needs to get fast and efficient goodness into the plant so it can work harder to produce top quality food.