What about the yellowing of the leaves of the big-leaf green apple? the culture method of the big-leaf green apple

Green pineapple can be seen everywhere in our life, and almost everyone at home will raise one or two pots of green pineapple, because it is green and beautiful, evergreen all the year round, and it can also absorb formaldehyde, which is good for health. The big leaf green apple is the green apple with larger leaves, so how to deal with the big green apple leaves yellowing?

What if the big leaf green apple leaves turn yellow?

1. Generally, the newly bought big-leaf green apple has an adaptation period of about one month to the new environment, and the bottom yellow leaves are normal, but remember: yellow or dead leaves should not be directly peeled off, but should be cut from the middle of the petiole. in this way, it can avoid direct stripping to cause too much water loss and increase the wound, which leads to the yellowing of the upper leaves.

2. Although the big-leaf green pineapple is not afraid of darkness, a very dark environment can also cause yellow leaves, which can be moved regularly to places with good light; at the same time, it can not be exposed to the sun. Excessive exposure in strong light will not only cause yellow leaves to fall, but also lead to the death of the whole plant.

3. The big-leaf green apples bought in winter are generally frozen, so yellow leaves will soon appear indoors, and new leaves will be reissued during the Spring Festival after these frozen yellow leaves have fallen.

4. If the basin soil is too dry or too wet, both of them will cause metabolic disorder, damage to root system and lead to yellow leaves and fallen leaves.

5. Green pineapple with big leaves is short of fertilizer, and yellow leaves will also appear when malnutrition. Fertilizer should be replenished in time at this time.

6. Large chlorophyll apple leaves yellowing can also be properly fertilized with beer. Method: according to the proportion of beer at 1:1, spray stems and leaves.

7. Excessive topdressing of big-leaf green pineapple in maintenance is also easy to cause root burning phenomenon, which leads to leaf yellowing and wilting. Fertilizer can be diluted with water to let nutrients flow away with the water.

Culture method of big-leaf green pineapple

The big-leaf green turnip is strong in nature and can be potted indoors all the year round. It can be placed in a bright place in the basin for a long time. If you stay in the dark for a long time, it will make the leaves smaller and the internodes longer, and for the color leaf varieties, the leaf color will fade, affecting the ornamental value. Summer needs to be spent in a semi-overcast environment to avoid direct sunlight.

The suitable temperature for the growth of big-leaf green apple is about 25 ℃ in daytime, and the optimum temperature in winter should be kept at 10-13 ℃, generally not less than 7 ℃. It can be cultivated in the warm areas of South China and Southwest China in winter.

The big-leaf green apple likes the hot and humid environment and needs to spray water to the leaf surface and the ground frequently and keep the basin soil moist. Compound fertilizer is applied every 2 weeks or so in the growing season.

Green pineapple with big leaves is commonly used for cutting propagation. From May to July, the sprouting shoots at the top or base of the stem were cut into segments of about 10 cm and inserted into a breeding bed mixed with the same amount of fine sand and peat, keeping proper humidity and temperature of 2125 ℃, and new roots could be produced in semi-shade environment for about 3 weeks. After rooting, it can be planted in a pot with 3-4 plants per pot. The older branches can also be cut, and the branches with bud holes can be cut into 4-5 segments, which can also grow into new plants according to the above method. It can also be propagated by pressing, which can be carried out during the growing period.

How to fertilize green pineapple with big leaves

Fertilizing the leaves of big-leaf green pineapple, because the ordinary inorganic fertilizer is very difficult to be absorbed, therefore, it is necessary to use special fertilizer. In the autumn and winter in the north, the growth of big-leaf green pineapple is slow or even stops growing, so fertilization should be reduced. Before winter, liquid inorganic fertilizer is mainly poured and sprayed, and the time is about 15 days. After winter, fertilizer is mainly sprayed on the leaf surface, mainly sprayed through the stomata on the leaf surface, and the fertilizer is absorbed through the stomata on the leaf surface, and the fertilizer effect can act directly on the leaf surface. Foliar fertilizer should use special fertilizer, ordinary inorganic fertilizer is not easy to be absorbed by foliar.

Matters needing attention

The main results are as follows: 1. Big-leaf green pineapple grows fast and its cultivation and management are extensive. In the process of maintenance and management, plants should be sprayed with water in summer and fertilized outside the roots every 10 days to keep the leaves green.

2. Big-leaf green pineapple is vulnerable to pests and pathogens. Major pests affect the growth of large-leaf green pineapple, including pink beetles, red spiders and scale insects. Powder beetles are usually the most common and can be killed with alcohol, cotton swabs, removed, or removed by hand.

As we all know, the big-leaf green pineapple is a kind of foliage plant, if its leaves are no longer green, but withered and yellow, it will look very ugly as a whole, so if this situation occurs, we must deal with it in time and pay more attention to maintenance and management.