Orchids like slightly acidic soil very much, and the best pH value of soil is between 5.5 and 6.5, which is conducive to better growth of plants.Do not use slightly alkaline soil, which is not suitable for orchid growth and may stop its growth.Orchids have higher requirements for soil, in addition to the soil to be slightly acidic, but also for soil permeability, drainage is also a certain requirement.The permeability of the soil should be good, so that the roots of orchids can breathe better.Soil drainage capacity should be stronger, otherwise it will affect the normal discharge of water.Soil nutrients should be sufficient, generally can be used to humus soil, garden soil and other mixed preparation of culture soil, so as to provide adequate nutrients for plant growth.
1. The culture soil can be prepared by mixing 6 parts of humus soil, 2 parts of mountain base soil and 2 parts of red soil to provide sufficient nutrients for plant growth.
2. Cultivated soil can be prepared from field soil and humus soil.Accord to that proportion of 2 parts of field soil, 3 part of garden soil and 5 parts of rotten leaf soil, the mixture is evenly mixed, and the orchid can be maintained to be very strong.
3. Can be prepared by mixing sandy soil and humus soil, not only can improve the drainage and air permeability of the soil, but also can improve sufficient nutrients for plants.A preparation ratio can be 4 part of sandy soil and 7 parts of humus soil or Radix notoginseng.
