OBJECTIVE FORESTRY

Detailed explanation-1: -Potassium Uptake by Crops Experiments on potassium uptake by corn showed that 70 to 80 percent was absorbed by silking time, and 100 percent was absorbed three to four weeks after silking. Translocation of potassium from the leaves and stems to the grain was much less than for phosphorus and nitrogen.

Detailed explanation-2: -The rate of uptake depends primarily on the concentration in the soil solution immediately adjacent to the root. The rate of nutrient uptake is independent of the rate of water uptake, but the concentrations of nutrients at root surfaces depend strongly on soil water content.

Detailed explanation-3: -Plants absorb potassium in the form of the ion K+ which dissolves readily in water. Ninety-five percent of all potassium fertilizers come in the form of muriate of potash, also known as potassium chloride.