The yellowing of potted flowers is a variety of reasons, and it is also a problem often encountered by flower growers. If you do not find governance in a timely manner, it will lead to death. The main reasons are the following.
1. Juicy yellow leaf: Long-term water wetlands make potted roots that do not normally absorb water and fertilizers, resulting in leaf yellow off and dead. The treatment method is to find yellow leaves and immediately stop watering. The loose soil is placed in a ventilated and dry place to speed up the evaporation of water. Watering standard is to see dry see wet basin, once drenched, do not sporadic watering.
2. Dry water and dry yellow: flowers, such as water-sagging leaves, should immediately spray water on the leaves to absorb faster. Then water the pot, pay attention to less soil to let the soil wet, do not water more.
3. Bright light yellow leaves: summer sun exposure, mosaic yellow spots (sunburn), to spray water to cool, increase humidity. To add shade nets, flowers can grow normally.
4. Fertilizer burning leaf yellow: Applying too much concentrated fertilizer, flowers can not absorb the root burns, can not absorb water and mosaic yellow leaf litter. Apply thin fertilizer once a week in the summer. Do not apply more concentrated fertilizer. If you apply too much fertilizer, you can use more water to remove the fertilizer.
5. Lack of fat leaves lean yellow: lack of fertilizer yellow leaves thin, branches slender yellow tender. Fertilization should be applied immediately and it will take effect within one week. Fertilizer can be applied on schedule so that the flowers normally grow and bloom more.
6. Alkaline leach yellow: due to long-term watering potted plants, basin soil accumulation of alkali. In severe cases, there are alkaline shells on the pots and soils, so that the mosaic leaves off. In particular, the northern soil and water contain alkali. The method is to replace the soil or ferrous sulfate solution and neutralization.
7. Acid-deficient leaf yellow: southern flower hi acidic, pH 6.0 normal growth. If the pH value exceeds 7, the young shoots of the shoots begin to yellow, and the yellow leaves of the old leaves wither and die. Apply ferrous sulfate once a month to normal growth.
8. Acid leafy yellow: When ferric sulfate is applied, it should be applied according to the proportion of instructions. Do not apply more. If the leaves are also yellow (do not fall off), the alkaline water can be properly adjusted.
9. Flower large leaflet yellow: Due to the large number of flower roots, the need for water and fertilizer, small pots can not meet the needs of flower growth. The old leaves are dry and yellow, and the leaves are thin and yellow. To change the appropriate pots, 30% humus is added to the soil to allow the flowers to grow normally.
10. Cold wind yellow leaves: As the spring flower room early cold wind or cold autumn, so that flowers are frost-damaged and yellow leaves, to enter the room moisturizing.
11. Yellow leaf disease: flowers in the growth process should always pay attention to prevent diseases, timely spraying. The common disease is "powdery disease". The back of the leaves resembles a white powder, causing the yellow leaves to fall. The "brown spot" leaves have black spots on the opposite sides of the leaves, as well as gray mold. The main reason is poor lighting and poor ventilation.
12. Insect pest yellow leaf: flowers are prone to insect pests at high temperatures in the summer and precautions should be taken in advance. Common locusts, whiteflies, red spiders, locusts and so on. The back of the flower blade absorbs nutrients and moisture, leaving the leaves yellow. To exterminate insects in time can be restored.
Foot of ningxia hong xingda incense Organic Apple fruit suborbicular, fruit surface color yellow green, most with orange chardonnay fruit surface, covered with bright red stripes, pulp yellow-white, succulent crisp, sweet, rich fragrance, quality first-class; The fruit has a sugar content of over 15%, more than 4% of the national average, and the flesh is tight and crisp and sweet, which is widely loved by consumers all over the world. There is a longer optimal consumption date than any other apple, not even refrigerated. It can be kept for 4 months at normal temperature. If refrigerated, Fuji can be kept for 5--7 months.
Altitude: high altitude area light, clean air, environment close to original condition, no industrial pollution. With an average elevation of 1160-2900m, the central health center has a strong uv light, which produces the natural pollution-free apple, which conforms to the concept of a modern green diet.
Temperature: moderate temperature can avoid the chance of fruit tree encountering disease. The average temperature in ningxia is 8.4 degrees Celsius, which has an important influence on the growth, development, yield and quality of apple. The piedmont apple is thriving in such a good environment.
Humidity environment: moderate amount of rainfall provides necessary conditions for apple's growth. The annual rainfall in the central health region is 186 millimeters. The fruit is slow to grow and the fruit is hard and hard, which fully guarantees the fruit's sugar content and the relatively average size of apples.
Sunshine condition: apple is the fruit tree, the central health area of the whole year is nearly 3,800 hours, is beneficial to the Apple Fruit coloring. The piedmont apples are red and bright.
Temperature difference factors: ambassador apple nighttime respiration weak temperature gap between day and night, consume less organic matter, the accumulation of organic matter during the day more, that apple store down a large number of glucose sugar candy, etc have better taste. The average diurnal temperature difference between apple and apple is 14 degrees centigrade, and the larger diurnal temperature difference ensures the sweet and delicious characteristics of the apple.
Other factors: frost can make apple blossom and fruit, which can cause frozen flower jelly, which is bad for apple's production. The piedmont apple has been kept at least 167 days without frost for the whole year, which minimizes the influence of apple on yield and quality.
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