Is it normal for the leaves of shepherd s cabbage to turn purple? Why is shepherd s cabbage purple?

Normal. Shepherd's cabbage turns purple in winter. In winter, when it is cold, there will be some discoloration, which is a very normal phenomenon, and you can continue to use it, and the shepherd's cabbage is very nutritious.

The roots are clustered, pinnate and deeply lobed, sparsely entire, and the upper lobes are triangular.

The stems are oblong or linear-lanceolate, nearly linear at the top, ear-hugging stems at the base, the margins are notched or serrate, or nearly the whole margin, the leaves are single or branched pubescent on both sides, and the margins are sparsely covered with long white eyelashes.

Abnormal. Shepherd's cabbage grows on the hillside, the edge of the field and the roadside, is a kind of stem and leaf wild vegetables, the production of the main two varieties, the leaf purser and the scattered leaf shepherd's cabbage, these two kinds of shepherd's cabbage a large leaf some, a small leaf, but are fragrant stronger, the taste is very delicious, the leaves are green, such as the purple leaves of the shepherd's cabbage, may be related to the growth of older, lack of nutrition, the wrong variety, it is not recommended to eat, so as not to accidentally eat poisonous plants and cause health hazards.

Due to the different environment in which shepherd's cabbage grows, in order to adapt to the relatively harsh living environment, the genes of the shepherd's cabbage gradually change during the growth process, so it will look a little different.

Some of the shepherd's cabbage is purple because some varieties are different, it is a variety after subsequent improvement, and the nutrition of the shepherd's cabbage has no absolute relationship with what color it is.

Differences in breed:

Although shepherd's cabbage and shepherd's cabbage are both called shepherd's cabbage, the shape is similar, and both are eaten by humans, but strictly speaking, the two are not the same plant, first of all, the two shepherd's cabbage belong to the cruciferous family, but shepherd's cabbage belongs to the genus Capsule, and shepherd's cabbage is also called the big root shepherd's cabbage, which belongs to the genus 蔊 [hǎn] vegetable.

These two species can be found in the field, wilderness or roadside, but the water capsule's purse prefers to grow in a more humid environment, such as a river or a stream, and the more humid the place, the more vigorous it grows.

Summary. Pro, there are several reasons for this, one is that mustard greens like to grow in cool temperatures, and the most suitable temperature for growing is 15-20. When the temperature is lower than 15, the ability of mustard roots to absorb water decreases, and the growth is restricted, so after transplanting, the regreening is slower and even wilts.

Second, the root system of mustard mustard without grafting before transplanting is underdeveloped, and the ability to absorb fertilizer and water after transplanting is poor. Therefore, mustard seedlings should be fertilized once before transplanting, preferably 5 to 7 days in advance. In this way, after changing the growth environment, mustard seedlings can rely on the nutrients they carry to help them pass the slow seedling stage.

Third, mustard seedlings carry viral diseases virus diseases are very easy to occur in the mustard seedling stage, which affects the growth and development of the root system in the early stage of the disease, makes the mustard become shriveled, and then the leaves and veins appear diseased.

Dear, there are several reasons for this, the low temperature mustard greens like to grow in cool orange temperatures, and the most suitable temperature for growing is 15 20. When the temperature is lower than 15, the ability of mustard roots to absorb water decreases, and the growth is restricted, so after transplanting, the regreening is slower and even wilts. Second, the root system of Yuanqiao cabbage that was not grafted before transplanting was underdeveloped, and the ability to absorb fertilizer and water after transplanting was poor.

Therefore, mustard seedlings should be fertilized once before transplanting, preferably 5 to 7 days in advance. In this way, after changing the growth environment, mustard seedlings can rely on the nutrients they carry to help them pass the slow seedling stage. Third, mustard seedlings carry viral diseases virus diseases are very easy to occur in the mustard seedling stage, which affects the growth and development of the root system in the early stage of the disease, makes the mustard become shriveled, and then the leaves and veins appear diseased.

Fourth, watering too often mustard likes a moist environment to grow up, but it is not Li Wei often afraid of standing water. When watering too often after transplanting, and leakage or flood irrigation, it will cause waterlogging in the field, which will bring many disadvantages to the survival of mustard.

First, try to raise seedlings in advance, transplant them before the local temperature drops, and make the mustard seedlings after hand pure fiber planting smoothly return to green. Or if the temperature becomes low after transplanting, cover it with straw or straw curtain in time to keep warm and moisturize. Second, cultivate strong seedlings, and when the seedlings grow to 8 10 cm high, transplant, 5 7 days before planting, apply urea to the seedlings.

Or after transplanting, water light human urine every three days. Third, the seedlings are selected without disease, and soaked or mixed with pesticides, the seedbed is thoroughly detoxified, and the live aphids are prevented in time after the seedlings emerge to reduce the occurrence of virus diseases. Fourth, after transplanting a fixed root water, can not be watered every day, it is best to water once every three days, watering to use a watering can to complete the imitation shower, the soil layer can be wet, do not irrigate with large water.

Here's how to fix it, I hope it helps.

What medicine is good for a virus to use?

Pro, poison crack, virus kii, virus Ning and other drugs, spray once every 5 7 days, 2 3 times in a row.

1. Excessive exposure to the sun causes plants to wilt and turn yellow.

2. Excessive fertilization leads to water loss and wilting of root hair cells, and the fertilizer can be used as a water-soluble fertilizer with the first difference of fertile leaves, which is diluted according to a certain multiple. 3. Watering too much water makes the plant unable to breathe.

4. Soil nitrogen deficiency elements need to be replenished in time.

Huangqing ridge leaves have lack of fertilizer, exposure to the sun, frost damage and diseases and other reasons can cause yellowing of leaves.

Summary. Kiss: The reason for the yellowing of the leaves in the middle of the grown camelina planted during the growth period:

It is caused by many aspects, 1. It is caused by the non-drainage of the soil; 2. The seedlings are too tender, which causes damage in the seedlings, pulling seedlings and transplanting seedlings; 3. It is the slow seedlings that do not slow the seedlings to come; 4. It is improper fertilization.

Kiss: The reason for the yellowing of the leaves in the middle of the planting of camelina during the growth period: caused by many aspects, 1. It is caused by the soil quality not draining; 2. The seedlings are too tender, and the damage is caused by the seedlings, pulling the seedlings, and moving the seedlings and planting the seedlings; 3. It is the slow seedlings that do not slow the seedlings to come; 4. It is fertilization and not panicle.

Kiss: If you want to avoid yellow leaves, you must choose the soil quality of draining, watering and irrigation, and when pulling seedlings and transplanting seedlings, you should handle them gently, and after transplanting, you should apply manure reasonably.

Are you sick?

What kind of medicine is used?

Kiss: Yellow leaves will also appear when there are pests and diseases in the camelina cabbage, and you can use plant ash to remove pests and diseases at this time.

Summary. Yellowing of bryophyllum leaves is a relatively mild infection of the plant, sprayed with agricultural streptomycin sulfate mixed with water, or sprayed with 40% sclerotia net wettable powder, or 90% neophytomycin soluble powder 200 mg liters. 8 Use it once in 10 days, spray it once.

Be careful to spray when the sun is out.

Yellowing of bryophyllum leaves is a relatively mild infection of the plant, spray with agricultural sulfuric acid with streptomycin mixed with water, or spray with 40% sclerotia net wettable powder, 200 mg of sclerotial or 90% neophytomycin soluble powder. 8 Use it once in 10 days, spray it once. Be careful to spray when the sun is out.

Severe disease stage: Pull out the diseased plants with serious infections, and then sprinkle them evenly with quicklime on the field and the ground of the diseased plants, so as to avoid the continuous spread of the disease.

Wu Wei should pay attention to crop rotation; Don't grow the same kind of vegetables on a piece of land all year round, you can grow some vegetables with different types of nucleus, such as radishes, mustard greens, etc.