The plant kingdom evolved to a certain stage before fruits appeared. Gymnosperms have only seeds and no fruits. Since angiosperms, plants have fruits, and seeds are wrapped in fruits, which is a good protective structure for seeds, and fruits are also of great significance to the spread of seeds. Fruits can help seeds survive in harsh environment, so that plant species can multiply. This is also one of the important reasons why angiosperms occupy an absolute advantage on the earth.
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The better the soil fertility, the more conducive to the growth of plants. If the topsoil of plants is ok, but the subsoil has basically lost its fertility and needs to be replaced, it must be buried with organic fertilizer, and the more the better.
In addition, the pH of the soil must be determined, because different soil qualities will determine what kind of plants it is suitable for. Acid soil is suitable for the growth of Ericaceae plants, such as azaleas and camellia. Alkaline soil is suitable for the growth of clematis, Buddleja and Carnation. Neutral soil can be used to grow all kinds of flowers. To determine the pH of soil, you only need to buy some test materials.
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