1, urea and ammonium sulfate is a fast-acting nitrogen fertilizer, fertility, quick, but the effective period is not long. Urea-alkali, suitable for northern flowers; Ammonium sulphate is applied to the soil and is converted to acidity. It is suitable for southern flowers. It is best to add 1000 to 1500 times of water to dilute, and then water it. Do not spread it in pots. Many will burn the flowers.
2. Superphosphate is a kind of quick-acting phosphate fertilizer with slightly acidic reaction. The fertility is relatively gentle. It can be mixed with culture soil by 1:100 when it is used, or it can be thrown into flowerbeds and flowerbeds before planting and used as base fertilizer after plowing. Add 30 to 100 times more water to the top dressing, soak the top clear liquid after soaking for a day and night.
3. Potassium dihydrogen phosphate is a high-grade, quick-acting phosphorus and potassium fertilizer, which is odorless and tasteless, with significant fertilizer effect. It has remarkable reproductive effects on ornamental flowers such as chrysanthemum, Chinese rose, dahlia and kumquat. The application should be dissolved in 500 to 1000 times the water dilution.
4. Boron borate has a significant effect on promoting flower bud differentiation, culturing buds and preventing fruit drop. Several 2000 to 2500-fold boric acid dilutions can be sprayed on the flower buds before and after the buds.
5. When ferrous sulfate is used to cultivate southern acid soil flowers in the north, leaves often yellow off. In order to prevent yellowing of the leaves, a 500-fold diluted ferrous sulfate solution may be periodically poured and poured once every 15 to 20 days.
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