How Does Slow Release Fertilizer Work?

Slow Release Fertilizers

Slow release fertilizers are made with layers to enable partial release over time. It is very similar to time release medications but not as precise.

So what causes a layer to release?

Layer release is NOT Time Activated. I wish this were true. Anyway, layer release can be caused by heat and/or water. So if you water more often or it rains frequently, then the fertilizer will be released more rapidly. The same goes for heat. If you have a heat wave, more fertilizer will be released. It’s definitely not the best application of fertilizer. You may get too much fertilizer too soon which can harm plants.

Natural fertilizers like compost, worm castings, rock phosphate, azomite and Greensand naturally and slowly release minerals and nutrients into the soil. You never have to worry about over fertilizing with these. These fertilizers will never harm your plants.

Chemical fertilizers may seem great when you see your plants growing fast and green BUT they will be more prone to disease and pests.

A 2 inch layer of compost will provide all the nutrients your plants will need over the entire season. Do it once and forget it. It’s that simple.

Remember this: feed your soil NOT your plants.

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What is the Use of Potassium in Plants?

Potassium and Plants

Potassium is a essential nutrient for plants to grow. It is second only to nitrogen. Potassium affects things like color, plant size and shape, taste and other physical attributes.

Here is a list of what plants use potassium for.

  • regulate CO2
  • produce of ATP
  • regulate water
  • improve drought resistance
  • protein and starch synthesis
  • enzyme activation

Plants deficient in potassium will exhibit these signs.

  • scorched leaves with yellowing at edges
  • slow or stunted growth
  • poor resistance to temperature changes
  • poor resistance to drought
  • defoliation
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