What chemical fertilizer is used in the early stage of planting Osmunda japonica?

Lagerstroemia indica, also known as Hundred Days Red, likes fertile and well-drained sand. Generally, before germination in winter or early spring, it is necessary to dig a pit and apply decomposed human excrement and urine, and water each plant for 10 kilograms three times, so as to grow better. It is best to water the rotten pancakes every half a month during the growing period. Life habits Lagerstroemia speciosa likes warm and humid, likes sunshine but is slightly resistant to shade, and likes to be born in calcareous soil.