Dosages

POTSIL STRENGTH
Potsil is a highly concentrated liquid and will make up to 10000 times the original volume. All our products are supplied with different sized syringes to suit the particular pack size, enabling you to measure your dosage rates accurately.

2.0 mls of Potsil added to 10 litres of water will produce a solution containing:
46 ppm of silicon (as Si02).
22 ppm of potassium (as K20).


FIELD CROPS (CEREALS AND VEGETABLES)
Foliar sprays; For young plants apply at 10-150mL in 100L of water during establishment. Raise the dose rate to 50-300mL in 100L of water for mature plants. Apply until run off from the leaf. Start dose rates at the lower values and only raise them to the higher values once you have confirmed that your crop is not overly sensitive (scorching).

Apply to an equivalent of 2L per hectare.
Repeat applications every two weeks.

Soil drench; Apply 3L per hectare in 1000L of water directly to the soil.Avoid contact with the foliage.
Repeat applications every four weeks.

pH Adjustment of soil; Potsil can be applied after harvest to raise the soil pH. Use as a direct replacement for lime. Dose rate can be significantly higher than in-crop application rates as there is no risk of scorch at this time. Do not attempt to adjust your soil pH once a crop has been sown.


ORNAMENTAL NURSERIES, ORCHARDS VINEYARDS AND PLANTATION CROPS
Foliar sprays; For young plants apply at 50-150mL in 100L of water during establishment. Raise the dose rate to 50-300mL in 100L of water for mature plants. Apply until run off from the leaf. Start dose rates at the lower values and only raise them to the higher values once you have confirmed that your crop is not overly sensitive (scorching).

Do not spray high dose rates during flowering.

Apply to an equivalent of 3L per hectare.
Repeat applications every 2 to 4 weeks.


TURF GRASS
Apply 5-10L / ha in 200L of water using either a backpack or boom sprayer.

Do not apply in hot, dry weather or frosty conditions.

Note: grasses have been found to naturally increase their silica content of their tissues after defoliation in an induced defence response. As a result, turf that has been mowed regularly or grasses and bamboos that have been pruned hard or attacked by herbivores may need an extra amount of silicon to be added as fertiliser to maintain them in a healthy state. Removal of clippings will also remove silicon from the growing system.


HYDROPONICS
Manual addition; Add Potsil to your nutrient tank as a supplemental additive at 1.0-2.0ml per 10L of final solution. Then add your base fertilizer and adjust the pH to the optimum for your crop. Add extra Potsil as you add water back to the system to replace water lost through evapo-transpiration.