| 1 | 2 | 3 | |
|---|---|---|---|
| Ammonium sulphate | 0.30 | 1.20 | 30.0 parts |
| Sodium chloride | 0.30 | 1.20 | 30.0 parts |
| Potassium nitrate | 0.15 | 0.60 | 15.0 parts |
| Magnesium sulphate | 0.15 | 0.60 | 15.0 parts |
| Magnesium phosphate | 0.04 | 0.20 | 4.0 parts |
| Sodium phosphate | 0.06 | 0.24 | 6.0 parts |
| 1.00 | 4.00 | 100.0 parts |
One part to be dissolved in 1,000 parts water and the flowers watered up to 3 times daily. Dissolve 4 parts in 1,000 parts water, and water with this solution daily:
III.—Plant Food Solution.—
| 1 | 2 | ||
|---|---|---|---|
| Potassium chloride | 0.16 | or | 12.5 parts |
| Calcium nitrate | 0.71 | or | 58.0 parts |
| Magnesium sulphate | 0.125 | or | 12.0 parts |
| Potassium phosphate | 0.133 | or | 15.0 parts |
| Iron phosphate, recently precipitated | 0.032 | or | 2.5 parts |
| 1.160 | or | 100.0 parts |
This turbid mixture (1 part in 1,000 parts) is used alternately with water for watering a pot of about 1 quart capacity; for smaller or larger pots in proportion. After using the amount indicated, the watering is continued with water alone.
IV.—Fertilizer with Organic Matter, for Pot Flowers.—
| Potassium nitrate | 100.0 parts |
| Ammonium phosphate | 100.0 parts |
| Phosphoric acid | 2.5 parts |
| Simple syrup | 1,000 parts |
Add not more than 10 parts to 1,000 parts water, and water alternately with this and with water alone. For cactaceæ, crassulaceæ, and similar plants, which do not assimilate organic matter directly, use distilled water instead of syrup.
Chlorotic plants are painted with a dilute iron solution or iron is added to the soil, which causes them to assume their natural green color. The iron is used in form of ferric chloride or ferrous sulphate.
| V.— | Sodium phosphate | 4 ounces |
|---|---|---|
| Sodium nitrate | 4 ounces | |
| Ammonium sulphate | 2 ounces | |
| Sugar | 1 ounce |