We recommend the granular type for field applications.
       •        Beds/rows: Apply 2–5 kg per 1,000 m² (10 ares/“10a”) along the bed/ridge, then till to incorporate evenly (aim for the root zone, ~5–10 cm deep).
       •        Seedlings: Place 1–5 g per seedling in the planting hole, mix lightly with the surrounding soil, then transplant.

Notes: Rates above are guidelines. Adjust for soil type, moisture, crop, and equipment. If it’s your first time, trial a small area and keep both soil and product dry at application for best mixing.

Apply about 1–5 g of EF Polymer directly into the planting hole, mix lightly with the soil, and then transplant the seedling.

For seedlings and container use, we recommend the powder type.

For seedling trays or planters: Mix EF Polymer with soil at a rate of about 1–10 g per liter of soil.

When sowing seeds: Mix EF Polymer with seeds at a rate of about 2 kg per 1,000 m² (10a) before planting.

Since soil types and environmental conditions vary, we recommend starting with a low concentration (around 0.1%) and gradually increasing as needed.

The above application rates are general guidelines and may vary depending on soil and growing conditions. Please start with a small trial before full application.

To enhance soil water retention and nutrient-holding capacity, EF Polymer should be applied around the root zone of fruit trees or mature trees.
A common method is to dig holes around the tree—similar to what is known as the “octopus pot method” or “trench method” in traditional orchard management.

In these holes, mix EF Polymer with soil (or with fertilizer and soil) and apply the mixture. Since tree roots naturally grow toward available moisture, this application method helps promote healthier growth and improved resilience against drought stress.

Yes. EF Polymer does not naturally penetrate into the soil when sprinkled on the surface, so it must be thoroughly mixed into the soil. For best results, apply it to dry soil or fields, as mixing into moist soil may cause uneven distribution. The polymer itself should also be kept dry until use.

Please also make sure to follow the recommended application rates provided by our company. In particular, when using EF Polymer in pots or planters, avoid over-application, as it may cause soil compaction or stress to young roots.

We are currently conducting various trials to identify the most compatible crops. Promising results have been observed with grains (Poaceae family), tomatoes, okra, cabbage, leaf lettuce, carrots, potatoes, sweet potatoes, onions, pumpkins, broccoli, beets, sugarcane, and pineapples.
We have also confirmed certain positive effects in afforestation projects and turfgrass growth.

For more details, please refer to the “Field Trials” page on our website.

We are conducting field trials with various crops. At present, no incompatibility with any specific crop has been observed.

Yes, EF Polymer can be used in poorly drained soils. Poor drainage often occurs because soil particles are too fine and lack aeration. When mixed into the soil, EF Polymer absorbs water and swells up to about 50 times its weight, then gradually releases the water and shrinks back to about 1/50 of its swollen size. This cycle of expansion and contraction creates air spaces within the soil, allowing oxygen to reach the roots and positively supporting plant growth.

Yes, we recommend mixing EF Polymer with dry fertilizers, pesticides, pellets, or similar materials. However, since we have not been able to test with all possible materials, if you notice any irregularities or unexpected results, please discontinue use and contact us for further assistance.

In general, EF Polymer should be applied before planting. Spread and mix it thoroughly into the soil so that it is placed around the root zone. The most convenient timing will vary depending on the crop and the farming practices, but common options include before forming ridges or during fertilizer application.