How long does potassium polyacrylate work in soil?

April 30, 2021

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 has a 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, healthy 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 the 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 a 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 the soil for as long as 5-8 years.

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