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2. High Affinity K+ transporter HAK5 - Wikipedia

   en.wikipedia.org/wiki/High_Affinity_K...

   Potassium is being looked at, as being a new fertilizer for plants in areas that soil is low in potassium. [21] It has been shown to helps increase water consumption and nitrogen use in warm season cereals. [21] By using a potassium fertilizer, the use of the HAK5 transporter will decrease because it is only activated at low levels.

3. Potassium deficiency (plants) - Wikipedia

   en.wikipedia.org/wiki/Potassium_deficiency_(plants)

   Other inorganic potassium fertilizers include potassium nitrate, potassium sulfate, and monopotassium phosphate. Wood ash also has high potassium content but must be used cautiously due its effect on pH level. [7] Adequate moisture is necessary for effective potassium uptake; low soil water reduces K uptake by plant roots.

4. Agrominerals - Wikipedia

   en.wikipedia.org/wiki/Agrominerals

   In one of the studies it showed that the feldspathoid nepheline had a much higher dissolution rate making it more efficient source of potassium than other rocks that are much more potassium-rich like granitic rocks. [2] There is a push to move away from chemical fertilizers since it has been connected to groundwater pollution.

5. Seaweed fertiliser - Wikipedia

   en.wikipedia.org/wiki/Seaweed_fertiliser

   Foliar applications of seaweed fertilizer extract have been shown to improve the uptake of nitrogen, phosphorus, potassium, and sulfur in soybeans such as Glycine max. [59] Research has also demonstrated that brown algae seaweed extracts can improve tomato plant growth, overall crop yield, and resistance to environmental stressors. [60]

6. Plant nutrients in soil - Wikipedia

   en.wikipedia.org/wiki/Plant_nutrients_in_soil

   Nutrients in the soil are taken up by the plant through its roots, and in particular its root hairs.To be taken up by a plant, a nutrient element must be located near the root surface; however, the supply of nutrients in contact with the root is rapidly depleted within a distance of ca. 2 mm. [14] There are three basic mechanisms whereby nutrient ions dissolved in the soil solution are brought ...

7. Nitrogen deficiency - Wikipedia

   en.wikipedia.org/wiki/Nitrogen_deficiency

   Nitrogen deficiency is a deficiency of nitrogen in plants. This can occur when organic matter with high carbon content, such as sawdust, is added to soil. [1] Soil organisms use any nitrogen available to break down carbon sources, making nitrogen unavailable to plants. [1] This is known as "robbing" the soil of nitrogen.