How should foliar fertilizer be applied correctly to winter flowers?

1. Temperature: foliar fertilizer can be applied when you can provide flowers and plants with a good and suitable temperature environment; 15-25°C is the most reasonable. 2. Formula: in winter, flowers grown in greenhouses or indoors mainly need nutrient supply, just enough to ensure normal life activities; common foliar fertilizers include urea, ammonium nitrate, potassium sulfate, monopotassium phosphate, superphosphate, special foliar fertilizers for flowers, etc. Application methods for flower foliar fertilizer: 1. Concentration: flowers are different from other crops, so attention must be paid to concentration. 2. Technique: when spraying with a spray bottle, spray the back of the leaves; flowers are naturally very fragile, so do not spray the flower surface. 3. Time: for home care, spray once every half a month, at any time during the day; for large flower-growing bases, it is best to choose morning and evening to improve foliar absorption.