[dragon fruit and cactus] introduction of dragon fruit and cactus

Dragon fruit is a common fruit in our daily life. Some people say that dragon fruit is the fruit of cactus, while others say it is not. Today, let's give you a brief introduction to dragon fruit and cactus. Let's learn about it together.

Introduction of dragon fruit

Fire dragon fruit, the English original name green dragon fruit, red dragon fruit. Native to tropical Central America. The dragon fruit is rich in nutrition and unique in function. it contains plant albumin and anthocyanin, rich vitamins and water-soluble dietary fiber, which are rare in general plants. The dragon fruit tree is a triangular pillar plant of the cactus family, which is native to Brazil and Mexico, and then entered Taiwan, improved and then planted along the coast of the mainland. The dragon fruit is named because its fleshy scales resemble the outer scales of the dragon, also known as "auspicious fruit."

Introduction of cactus

Cactus is a family of desert plants of Caryophyllaceae, the national flower of Mexico. In order to adapt to the arid desert climate, the leaves evolved into small thorns, the main purpose is to reduce water evaporation, which is also a kind of self-defense equipment. The stem evolved into a thick, water-bearing shape, and the roots covered a large area, making it easy to absorb water and nutrients. At present, there are nearly 2000 species of cacti.

Culture method of cactus

The suitable temperature for cactus growth is between 20 and 35 ℃. The terrestrial type does not require a high temperature during the dormancy period in winter, but the temperature can be maintained at 4: 7 ℃ while keeping the basin soil dry. Epiphytic type, however, requires a higher temperature in winter to maintain a temperature of 10-13 ℃ or higher. When the cactus reaches 30: 35 ℃ in summer, the growth rate of most cacti slows down, and sometimes some kinds of stems turn yellow or burn, so the sun must be shaded and more water must be sprinkled on the ground to lower the temperature.

Terrestrial type prefers plenty of sunshine, especially in winter. Generally, tall, cylindrical and flat cacti are more resistant to strong light and can be placed outdoors without sunshade in summer, while smaller spherical ones prefer semi-overcast conditions in summer, covering the top growing point of Jinzhu with a circular plastic film in June and August in summer high temperature season, so that all parts of the sphere can grow evenly. Epiphytic cacti require semi-overcast conditions all the year round.

Fertilization should grasp the following principles: timely, appropriate amount, depending on the object. Fertilization is carried out in spring and autumn, and once every 20 days, it should be carried out in the early morning or evening on a sunny day. If the basin soil is dry, sprinkle some water on the basin soil and then apply fertilizer with a concentration of 0.05%-0.2%. The effect is better if it is watered once the next morning. Terrestrial fertilization requires fertilizers rich in potassium and phosphorus and less nitrogen, while epiphytic fertilizers require more nitrogen fertilizer.

The function of dragon fruit

Huolongguo fruit juice is rich and sweet, in addition to fresh food, but also wine, canned, jam and so on. Flowers can be dried into vegetables, and color can be used to extract food pigment.

Pitaya fruit can prevent constipation, promote eye health, increase bone density, explain the formation of cell membrane, prevent anemia and anti-neuritis, stomatitis, lower cholesterol, skin whitening and anti-black spots, it also has the effects of relieving heavy metal poisoning, anti-free radicals, preventing senile diseases, slimming, preventing colorectal cancer and so on. The new research results show that the juice of dragon fruit and branches play a positive role in tumor growth, virus and immune response inhibition and other diseases.

This is the end of the introduction of dragon fruit and cactus. I believe that after reading it, we will have a certain understanding of dragon fruit and cactus. I hope the relevant knowledge points introduced today can help you accordingly.