Brief introduction

This article is about the lifetime of potassium in soil and how to increase it.

Advantages of potassium polyacrylate

As a water retaining agent, potassium polyacrylate have strong water retaining ability.

  • To absorb water hundred times its weight and become gel form;
  • Water gel can release water to plants when it’s drought.

As we know, water is so important for plants. Potassium polyacrylate is just a “mini-reservoir” to keep releasing water to plants so that:

  • Increase yield of crop & fruiter;
  • Improve seed germination & emergence, give plants an early, health start;
  • Reduce irrigation frequency;
  • Release the fertilizer efficiency slowly;
  • loosen the soil and adjust salinization & PH.

How long would potassium polyacrylate work in soil

Factor One – Soil

  • Saltiness. Saltiness is a very factor for the life & performance of potassium polyacrylate;
  • Soil type. It’s better to use potassium polyacrylate in sand soil than clay/silt loam.

Factor Two – Temperature

  • Extreme weather will reduce lifetime of potassium polyacrylate. Deep culture is a good way to protect it.

Factory Three – Product quality

  • Fake type (sodium polyacrylate): less than one week

*Because sodium polyacrylate is much cheaper than potassium polyacrylate, sodium polyacrylate is sold by profiteer as potassium polyacrylate.

  • Inferior type: 2-4 weeks in soil
  • Common type: 1-3 months

*As common potassium polyacrylate’s lifetime is couple of months, it’s important to seize the important period of plants (such as nursery stage, anthesis, fruiting period, etc.)

  • Improved type (like Pack Rain): 5-8 years

*Pack rain is a type of improved water retaining agent. It can be workable in soil as long as 5-8 years.

Further Details