Why did the cactus die for no reason, without watering

Don't be in a hurry, maybe there will be salvation.

Atrophy may be a lack of water or sunlight, and yellowing should be a lack of sunlight. It may also be due to the lack of certain mineral ions. Methods of watering and fertilizing:

The principle of watering plants such as cacti, cactus, and cactus is to water them once when the soil is dry. Because they are afraid of waterlogging, but plants need water. Don't think they don't need to be watered because they grow in the desert.

Spring and autumn are the growth period of cactus plants, and summer and winter are their dormant periods. Cacti are especially in need of fertilization and watering during the growing period. Without them, cacti would not bloom.

During the growth of cactus, the soil should be kept moist at any time, and a small amount of water should be watered in the summer during the dormant period, and the watering should not be limited by the number of days, but should look at the humidity of the soil, and each watering must make the soil wet, and then water when the soil is dry. In Chengdu and other places, cacti should never be watered only in winter. In dry areas, a small amount of water can be properly watered in winter.

Cactus plants can not lack iron, boron, calcium and other micro-fertilizers, the correct fertilization method is: during the growth period, generally once a week, fertilizer selection should be selected high phosphorus, high potassium and low nitrogen compound fertilizer, the compound fertilizer containing micro fertilizer diluted into a concentration of 2-4 for foliar fertilization, the sphere is all wet.

There may be two reasons for the atrophy of yellowness, one is lack of water, and the other is lack of sunlight.

Green plants need sunlight to synthesize chlorophyll properly and take on a healthy green color.

For example, when drying radish strips, the radish gradually shriveled, because of dehydration and wilting. Plants need a certain amount of "water pressure" to keep their cells stiff.

The lack of sunlight is because the nutrients of the cactus are mainly stored in the fleshy stems, and the lack of sunlight photosynthesis is not sufficient, and the nutrients are consumed, so it shrinks.

If you don't water it, or if it's a potted plant, you've bought a bad one.

Is it a relationship between being left in the bedroom for a long time without light?

If the cactus is watered too much, it should be treated as soon as possible, the excess water should be discharged, and ventilation should be strengthened, and the soil on the surface should be loosened to accelerate the evaporation of water.

If there is too much water, you can also take out the plants, dry the soil and put them in pots.

If you find that the cactus has rotted due to water, you should take off the pot, take out the plant and cut off the rotten part, and disinfect it, and wait for the wound to dry before planting, and you can slowly grow new roots, and the treatment can be timely to avoid death.

The root system is large, the root system of cactus is relatively large, the root is deep, and it can absorb enough water to maintain normal growth; Needle-shaped leaves, cactus leaves are revitalized, which can effectively reduce the evaporation of water; Waxy stems and leaves, cactus stems have a layer of waxy stems and leaves, which can effectively resist ultraviolet radiation; The stalk is stout, and the cactus stalk has a strong contractile fibrous lead, which can also protect the epidermis in the absence of water.

The root system of cactus is very developed, not only can go deep into the ground, but also can spread and grow to the surrounding area, and some varieties of roots can grow to tens of meters, so as to better obtain groundwater. In addition, the cactus has a thicker root system and stronger roots, which can absorb enough water to maintain the normal growth of the plant.

The leaves of the cactus are needle-shaped, which is formed because it adapts to the growth environment of long-term lack of water and degenerates. In addition, the needle-shaped blades have a smaller area, which can effectively reduce water evaporation and help the plant lock in more water.

And there is a layer of waxy substance on the stem of the cactus, which can make its root system resist strong ultraviolet radiation, so that it will not be sunburned, dehydrated and die, and can also reduce the evaporation of its own water, and retain water well, so as to adapt to the arid growth environment.

The stem of the fairy rolling luck palm is relatively thick, composed of many parenchyma element cells, the stem flesh is very soft, has good contraction, can freely expand its own body to store water, in the absence of water **, it can rely on shrinking the stem flesh to protect the epidermis.