Spray Drip Down Method.

First plant the cuttings then treat them. Spray the solution evenly over the cuttings until drops go down to the media.
Herbaceous cuttings, chrysanthemum, begonia, dieffenbachia, heath, hibiscus, etc: 1-5 tablets per liter water.

Total Immerse Method.

First totally immerse the cuttings in the solution for a few seconds then plant them. Broad leaf cuttings are especially suited for this method. You can use a basket to dip the cuttings in a tub. Prevent bruising by not placing too many cuttings in the solution at once. Allow time for the solution to dry on the cuttings before watering, misting or covering. The temperature of the solution should be at least equal to the cutting temperature. A cold solution temperature causes the stomata of the cuttings close; the amount of active ingredients absorbed is reduced.
Herbaceous cuttings, chrysanthemum, plumbago, ivy, clematis, delphinium, lavender, ficus, potted rose bushes, etc.: 1-5 tablets per liter water.
Softwood cuttings, hydrangea, pieris, hedera, etc: 1-6 tablets per liter water.
Hardwood cuttings, conifers, etc: 4-10 tablets per liter water

Basal Long Soak Method

Use the Basal Long Soak Method on cuttings which are more difficult to root or are more woody. A long soak of the cuttings in a low concentration solution causes the plant tissues to absorb the active ingredients. Use this method on plants which may be sensitive to high concentration used in the Quick Dip Method. Immerse the basal end of cuttings approximately one inch in the solution for 12-25 hours nominal. Plant the cuttings immediately or cuttings can be stored  in cold storage.
Rhizopon AA Water Soluble Tablets:
Herbaceous cuttings: 1-3 tablets per liter water.
Woody cuttings: 3-5 tablets per liter water

Hortus IBA Water Soluble Salts:
Herbaceous cuttings: 50-150 ppm IBA
Herbaceous and Woody Cuttings, including hard to root cuttings and rootstocks: 150-250 ppm IBA

Quick Dip Method

First treat the cuttings then plant them. Immerse the basal end of cuttings approximately one inch in the solution for a few seconds. Plant the cuttings immediately. Use the lowest possible concentration of tablets to achieve the desired results. An excess concentration may result in a reduced numbers of roots formed, phyto toxicity, shock, excessive callus, and rooting inequality.
Herbaceous cuttings, tropical plants, house plants, roses, etc: 3-10 tablets per liter water.
Chrysanthemum: 4-10 tablets per liter water.
Softwood cuttings: 20 tablets per liter.
Hardwood cuttings: 40 tablets per liter.
Difficult to root hardwood cuttings: 100-400 tablets per liter.

Rates

RHIZOPON AA WATER SOLUBLE TABLETS
Use the pre-dosed tablets with water to make your own freshest solutions in any concentration.
You measure the dosage by simply counting tablets and mix into water. A scale is not needed.

HORTUS IBA WATER SOLUBLE SALTS
Use the easy to measure powder with water to make your own freshest solutions in any concentration. You can make solutions to over 100,000 ppm IBA active ingredients. The Salts are an economical for making large solution volumes. Hortus IBA Water Soluble Salts is an easier to use and registered replacement technical IBA and K-IBA.

RHIZOPON AA WATER SOLUBLE TABLETS and HORTUS IBA WATER SOLUBLE SALTS are completely free of potentially phyto-toxic and flammable alcohol. You make solutions from very dilute to extremely concentrated. The solutions are odorless. Both are US EPA registered with WPS Zero Hour REI. Growers can apply the products and remain in the growing area. There is minimum PPE with no notification requirement.