The cause of yellowing and death of the leaves of brazilwood

The pollution of benzene and formaldehyde in the new house is very high, and the effect of using plants can only be obtained slightly, so it is recommended to buy an air purifier.

Cultivation and maintenance of brazilwood.

Brazilwood is also known as Brazilian iron pillar and fragrant dragon's blood tree. The plant is neatly shaped, erect, with broad leaves and golden-yellow stripes. Because of its beautiful dried leaves, it has become a popular indoor foliage and dried flower in recent years.

Brazilwood is generally planted in pots with one or two staggered heights for ornamentation. As long as a suitable growth environment is created according to its growth characteristics, Brazil wood can have deep roots and lush leaves all year round, and grow robustly.

Brazilwood leaves will have scorched edges, leaf tips scorched and other phenomena, which are mostly physiological diseases caused by drought, low temperature, improper watering, fertilization or excessive ventilation. The yellowing of the leaves of brazilwood in winter is due to the yellowing of the leaves and the scorched tips caused by direct sunlight, so you should pay attention to shading or move to a brighter place of astigmatism. Second, the amount of watering should not be too large, keep the potting soil slightly wet, and pay attention to the water basin not to accumulate water, otherwise it will cause rotten roots, yellowing and wilting of leaves.

Third, due to the lack of fertilization or improper fertilization in autumn, the leaves are yellowed, and nutrients should be increased in time. Foliar sprays with an aqueous solution of potassium dihydrogen phosphate. Fourth, due to the large change in indoor temperature difference, it should be kept between 14 and 25 degrees Celsius.

Fifth, due to the dry indoor air and poor ventilation in winter, it is easy to cause insect pests such as red spiders and scale insects. It can be sprayed with 800 times dimethoate (oxidation). It is best to make it dormant in winter, with a dormancy temperature of 13; If the temperature is too low, chloasma will appear on the leaf tips and leaf margins, which should not be less than 5 in winter.

In summer, it should be placed under a canopy, otherwise the leaves will be scorched; However, too much shade will cause the leaves to turn yellow and fade. The potting soil should be kept at a certain humidity, and too dry and too wet will affect the growth of plants.

The proportion of general sand used in brazilwood cultivation soil is large, especially for newly purchased plants, the potting soil is mostly coarse sand at the bottom, and the nutrients are insufficient, so potassium dihydrogen phosphate solution can be sprayed once a week during the growth period. Fertilization should be stopped when the room temperature is below 13.

Brazilwood. After the leaves have withered, if the plant is still alive, it can still grow new leaves. It is very likely that the temperature is too low to cause the plant to wilt, when the plant is in a low temperature environment, they will have yellow leaves, dry up and lose leaves, as long as the temperature is gradually increased, it will slowly recover.

If the plant dies and the leaves die, then there is no way to remedy it.

The yellowing and wilting of the leaves of Brazil wood may be caused by too little watering, strong sunlight, poor ventilation, and too much fertilization.

Brazilwood growth and maintenance should be watered in time, the growing period to keep the potting soil moist, if there is no water to give, it will cause the plant to lack water, the leaves yellow and wilted. Watering too much will cause water to rot the roots, and the normal delivery function will be affected, resulting in yellowing and wilting of the leaves.

After the potting soil dries, water is given in time to ensure that the soil is soaked and the roots can absorb water. If it has been watered too much, it should be treated in a well-ventilated area, and the rotten roots should be removed and disinfected, and then replanted. When maintaining, if you accidentally apply too much fertilizer, or choose too thick fertilizer that withers early, it will also burn the roots, causing the leaves to turn yellow and wilt.

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Usually pay attention to reasonable fertilization, too much fertilizer should be stopped first, and then a large amount of watering, so that the fertilizer flows out along the bottom hole. If there is a problem with the soil, the whole growth will be affected. It prefers acidic soils, and if the soil is alkaline, it will cause the leaves to turn yellow and wilt.

If the soil is not changed for a long time, the soil will be compacted and not breathable, which will also cause the roots to breathe hard, and the leaves will turn yellow and wilt.

If the soil is alkaline, you can add a little acidic substance dropwise, if it is compacted and not breathable, you should replace the loose and permeable soil. If there is not enough sunlight, photosynthesis will not go smoothly, and the brazilwood will not grow well, and the leaves will turn yellow and wilt. If the light is too strong, it will not grow normally under strong light, and the leaves will sunburn and turn yellow and wilt.

If there is a lack of sunlight during the growth period, you can transfer the maintenance position and raise it in the sunny place to see more light.

The reasons for the yellowing and wilting of the leaves of Brazil wood are: too little watering, strong light exposure, poor ventilation, fertilizer damage, lack of nutrients, etc.

1. Too little watering

The yellowing and wilting of the leaves of brazilwood may be caused by too little watering. Especially in the hot climate, the amount of water evaporation in the leaves is too large, if the watering is not timely, then the brazilwood will wilt due to lack of water, and the leaves will become dry and brittle, and they will fall off when touched.

2. Strong light irradiation

Brazilwood is a large foliage plant that needs sunlight to moisturize, but direct exposure to strong light will cause the leaves of Brazilwood to be sunburned, and the leaves will lose their growth activity and become wilted. Farmers should replace the scattered light nourish with moderate intensity as soon as possible.

3. Poor ventilation

Ventilation is very important for brazilwood, especially in the hot season, as good ventilation regulates the temperature and increases the oxygen exchange capacity in the environment. In the absence of oxygen, the leaves will not be respirated, and they will turn yellow and wilt.

4. Fertilizer impact

Brazilwood needs to be fertilized in the peak growth period, but the amount and concentration of fertilizer should be well regulated. If the fertilizer is applied too much, the brazilwood will grow wildly, so that the growth of new and old branches and leaves will become uneven, the ornamentality of the whole plant will also be reduced, and the leaves will lose their vitality.

5. Lack of nutrients

Plants lacking nutrients will be malnourished and their leaves will be yellow and dull. If the concentration of fertilization is low, you can use the nutrient solution of bamboo green green leaf king, which contains a variety of organic elements such as nitrogen, phosphorus, potassium and calcium to meet the different needs of brazilwood, and the yellow leaves turn green, strengthen the roots and promote growth.

Reason: Soil is the basic factor for the maintenance and cultivation of plants, if the soil is too compact, the roots will lack oxygen, can not breathe normally, seriously affect the normal growth, resulting in yellowing and wilting of leaves.

Solution: Provide loose and fertile sandy soil during maintenance and cultivation, regularly loosen the soil to keep the soil soft, raise it for a year or two to change the potting soil, not make the plant grow in the compacted soil, and also need to ensure that the soil is slightly acidic.

Reason: The growth of brazilwood is inseparable from the exposure of sunlight, it likes sunlight very much, grows in a dark place without sunlight for a long time, and naturally cannot carry out normal photosynthesis, which will cause growth weakness, resulting in poor growth, and in the long run, the leaves will turn yellow and wither.

Solution: Keep Brazil wood in a well-lit place and contact with sufficient sunlight to promote bright and shiny leaves, strong green and beautiful.

Reason: The reason for watering is also very important, not watering for a long time will cause the potting soil to dry out, causing the leaves to dry up and yellow. Watering too much can cause rot in the roots, which can also affect the normal delivery of water, and the leaves will also turn yellow.

Solution: If there is a lack of water for a long time, you need to water regularly according to the growth, if the roots rot off if you water too much, you need to cut off the rotten roots and reduce the amount of water given.

Reason: If it is not ventilated for a long time, it will also cause the leaves to turn yellow if it is kept in a hot and impermeable environment.

Solution: Cut off the yellowed leaves, strengthen the air circulation in the growing environment, and open more windows for ventilation.