Why does too much watering cause the death of flowers?

We often say that watering potted flowers requires great attention. Too much watering will not only cause rotting roots of flowers, but also lead to the death of flowers. So why on earth does too much watering cause the death of flowers? The editor will analyze the principle for you.

Rose

When the potted flowers are watered too much, the water fills the soil gap, and the air in the soil is replaced by water, so the external air can not enter, which results in soil anoxia, hindrance of root respiration, decrease of physiological function and hindrance of root water and fertilizer absorption.

At the same time, due to the lack of oxygen in the soil, a large number of aerobic bacteria with the function of decomposing organic matter in the soil multiply and move, which increases the acidity of the soil. Due to the extensive activities of butyric acid bacteria, a series of toxic substances such as hydrogen sulfide and ammonia were produced, which directly poisoned the root system. At the same time, because the anoxic plants consumed a large amount of soluble sugar and accumulated too much alcohol and other substances, the photosynthesis was greatly reduced, and finally the flowers died of hunger.

In the practice of flower cultivation, we can often see examples of flowers being "drowned" due to overwatering, resulting in blackening and decay of flowers' roots. Therefore, we should pay attention to the right amount of watering when cultivating flowers.

It is fastidious to water flowers and plants

Watering

Raising different kinds of flowers and plants is inseparable from the source of water, so many people regard watering as a very important task, but the editor found that many people do not understand the principle of watering and cause rotting roots, withered leaves and even death of originally sturdy and beautiful flowers, so how to water the flowers correctly? What problems do you need to pay attention to while watering?

I. the principle of "seven more" and "seven less" in watering flowers

1. Water more herbs and less woody plants

Herbaceous flowers have shallow roots, poor ability to absorb water, more water demand in the body and fast leaf evaporation, so watering should be more and frequently. The root system of woody flowers has the advantages of deep penetration, wide distribution, strong water absorption and less watering water.

two。 Wet flowers are watered more, xerophytes are less watered.

Wet flowers such as tortoise back bamboo and auspicious grass should be watered more; xerophytic flowers such as cactus, jade lotus, southern bamboo and other xerophytic flowers should be watered less.

3. The large and soft leaves are watered more, and the small waxy leaves are less watered.

The larger the leaf is, the softer the texture is, the easier it is for water to evaporate, so it should be watered more; for flowers with small waxy leaves, the evaporation of water on the leaf surface is slow and can be irrigated in the right amount.

4. Sandy soil is watered more, clay soil is less watered.

Sandy soil loose, poor water retention, appropriate more watering; clay compactness, good water retention, poor air permeability, watering should not be too much and too often.

5. More water in hot weather, less water in cold weather

Hot summer heat, foliar water evaporation, basin soil drying fast, watering should be timely, to be thoroughly watered.

6. There is more watering in drought than in overcast.

The weather is dry, the soil is easy to lose water, watering should be more and frequently, small pots are watered twice a day, large pots are watered once a day.

7. Water more in prosperous period and less in dormant period

During the peak period of flower growth, a large amount of nutrients and water are needed, so we should combine fertilization with more watering and frequently watering flowers during the dormant period, the growth tends to stagnate, water demand is very little, and watering should be strictly controlled.

Lycoris radiata flower

Second, the "five taboos" of watering potted plants

1. Do not water flowers with water containing oil or soap powder

These substances will have a destructive effect on the soil, change the pH of the basin soil, and seriously cause the death of flowers and plants. In contrast, the old water replaced by rice panning water or fish tank has a certain degree of fertility, which is much better than tap water, which is completely usable.

two。 Avoid watering at noon in midsummer

At this time, due to the relatively high temperature, plant root pores open, suddenly watered, easy to let flowers and plants "catch a cold".

3. Flowers with hairy leaves should not be watered with spray cans

The foliar surface is not easy to evaporate after spraying water, and it is very easy to rot, so we'd better not use a spray can to water it, we should take irrigation measures.

4. If the flowers are in full bloom, they should not spray more water.

Otherwise, it will cause petals to rot. If flowers and plants are expected to be seeded and watered during flowering, it will also affect plant fertilization, thus reducing the fruit rate.

5. Do not pour "half-waist water"

"half waist water" is that only the amount of water can only wet the topsoil, while the lower soil is dry. In the long run, a hard plated layer will be formed at the dry-wet junction of the soil, making it difficult to root down the plant. Therefore, we must grasp the principle of "watering thoroughly" when watering. At the same time, along with watering, we should also develop the good habit of loosening the soil: loosening the soil should be carried out after watering, when the basin soil is semi-dry, and the depth is based on seeing the root, and it is OK to cut off some surface roots, which is conducive to the birth of new roots.

Editor's tip: although some common household nutrients such as rice washing water and vegetable washing water are beneficial to flowers and plants, watering too often may be counterproductive. Therefore, watering flowers and plants must follow the above principles.

The reason for excessive watering and death of potted plants is that the potted flowers are overwatered, the water fills the soil gap, and the air in the soil is replaced by water, so the external air can not enter, and the root tissue will have breathing difficulties due to lack of oxygen, the metabolic function will decrease, and the physiological function will be reduced. the ability of root system to absorb water and fertilizer is blocked. At the same time, due to the lack of oxygen in the soil, a large number of aerobic bacteria with the function of decomposing organic matter in the soil multiply and move, which increases the acidity of the soil. Due to the extensive activities of butyric acid bacteria, a series of toxic substances such as hydrogen sulfide and ammonia were produced, which directly poisoned the root system. At the same time, because the anoxic plant consumes a large amount of soluble sugar and accumulates too much alcohol and other substances, the photosynthesis is greatly reduced, which hinders the normal activities of ammoniating bacteria, nitrifying bacteria and other aerobic microorganisms in soil, which can not effectively decompose organic matter in soil, thus affecting the supply of mineral nutrients, and finally makes flowers die because of hunger. Due to the lack of oxygen in the soil, it is conducive to the proliferation and activity of butyric acid bacteria and other anaerobic microorganisms, producing a series of toxic substances such as hydrogen sulfide and ammonia, which directly poison the roots and cause root poisoning and death. In the practice of flower cultivation, we can often see examples of flowers being "drowned" due to overwatering, resulting in blackening and decay of flowers' roots. Therefore, when cultivating flowers, we must pay attention to the timely watering, the right amount, in order to raise the flowers well.