Loose-tailed sunflower with pointed and yellow leaves? Learn these three moves and the balcony can't be put down.
For breeding loose-tailed sunflower, the soil needs to be well drained, loose, and contains a lot of humus; the temperature should be 20 to 35 degrees, above 10 degrees in winter; it is best to have scattered light, shading 50% in summer; watering according to the weather, more overcast and rain less watering; fertilizing and watering once or two weeks during the growing period. In addition, attention should be paid to basin change and pest control.
1. Culture environment
(1) soil: the main requirements are good drainage, loose and breathable, and contain a lot of humus. Rotten leaf soil and peat soil can be mixed and small piles of river sand and perlite can be added. If possible, a small amount of base fertilizer can also be added.
(2) temperature: plants like to be warm, preferably between 20 and 35 degrees. It is not resistant to cold and will suffer frost damage if it is below five degrees. In order to ensure normal growth in the second year, the winter temperature had better be above ten degrees.
(3) Illumination: like scattered light, can not be irradiated by direct light. The usual maintenance is suitable for scattered light, and its position should be moved in time when encountering strong light.
(4) watering: according to the weather, you can water more if it is hot and less if it is cloudy and rainy. According to the season, in summer, in addition to watering, but also sprinkle water; less water in winter.
(5) fertilization: the fastest growing stage is in May and June, when fertilizer and water are applied every one to two weeks, and compound fertilizer is available. In addition, organic fertilizer containing nitrogen can be applied in summer.
2. Change the basin
The basin needs to be changed every two to three years, and the soil can be prepared according to the previous requirements. In addition to dirt, pots can also be changed, preferably mud basins or glazed basins.
3. Pest control
Loose-tailed sunflower is easily affected by insect pests, such as red spiders, whitefly and so on. Use 40% concentration of omethoate EC to spray, spray both leaves and roots. At the same time, pay attention to ventilation.
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Fish tank water-fish manure is a natural fertilizer, coupled with a large amount of water diluted, the concentration is very light, you can use the water from the fish tank to directly irrigate the green apple, do not have to worry about fertilizer damage. Some friends also raise flowers directly in the filter tank for hydroponics.
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