The root of the star is easy to rot, so the soil should be weak alkaline calcareous soil or gravel loam with good drainage. Before planting, the potted soil should be dug properly and applied with enough organic fertilizer, and some p and K fertilizer can be applied properly.
Before planting, we should irrigate enough water, then choose to plant in cloudy days, and then pour water after planting.
Long sunshine can help to induce the differentiation of flower spikes. The longer sunshine time is, the more flowers will be obtained. If the sunshine lasts for a long time, it will not only promote the flowering, but also make the flowers bigger.
If the sunshine temperature is over 30 ℃ and the time is too long, it is easy to cause abnormal flowers.
When the water demand is more, it is the seedling stage. If the water supply is sufficient after the heart picking, it can enter the flowering stage. The water content should be reduced slightly when there are spikelets. In summer, when the temperature is high and the humidity is high, the water content shall be strictly controlled, and excessive humidity or ponding is not allowed. Watering in bud stage should be more careful, flowering also need to dry some, in rainy area cultivation will have to shelter.
Man Tianxing's requirement for fertilizer and water is the same as that of other flowers and plants, but he is most afraid of random fertilization or application of concentrated fertilizer. After applying fertilizer, keep the leaves and flowers dry at night.
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