The breeding of robust strawberry seedlings is a key link in the production of strawberries. High-quality seedlings are the basis for obtaining high-yield, high-quality strawberries. Strawberry seedlings are so important in the production of strawberries. Then, common knowledge about strawberry seedlings and different treatment methods for different seedlings. It requires strawberry growers to understand and master.
The advantages and disadvantages of strawberry seedlings
â—† Zhejiang Miao Zhejiang seedlings planting time from February onwards to start planting, in May will be able to climb the full face, when appropriate pressure seedlings treatment. Strawberry seedlings can delay the growth of strawberries and increase the robustness of the plants. It is helpful for the accumulation of dry matter in strawberries and is conducive to the accumulation of strawberries and the differentiation of flower buds in later stages. Therefore, the differentiation of flower buds in Zhejiang is very neat and the growth potential is very strong.
The previous output of strawberry determines the level of income of the farmers. The higher the annual output, the greater the income. This is the reason why the farmers in Zhejiang have some problems in planting seedlings in the past few years. However, the early production of this seedling is concentrated and the amount is large. In the middle and late period, it is easy to prematurely decline or break. In the production, attention must be paid and preventive measures should be taken.
â—† Dandong Miaodandong strawberry seedlings have taken a place in the past few years. However, the soil of Dandong strawberry seedlings is mostly neutral or acidic. Therefore, the strawberry seedlings in Dandong have been adapted to such soils and once cultivated into Beijing's calcareous soil (pH About 7-8) may not adapt. Moreover, after long-distance transportation, the strawberry seedlings will lose water and wilt, the roots will fall off, the long seedlings will grow very long, and they will easily die. If the seedlings in the field lose water and wilt, they must pay attention to the planting and restore the seedlings. Therefore, when farmers grow strawberries, they must distinguish the source of the seedlings and make appropriate treatment, instead of only paying attention to the seedlings' robustness and ignoring the source of the seedlings.
In addition, saplings are also sub-sourced, because all regions can cultivate planting matrix seedlings, such as plateau seedlings in plateaus and cold regions, must be strictly prevent powdery mildew, because in the nursery is not easy to occur strawberry powdery mildew, once into the northern planting greenhouse high temperature A high-humidity environment can easily cause a major outbreak of powdery mildew. In fact, the key principle is that it is best not to move the strawberry seedlings 15 to 20 days after planting. In the process of easing seedlings, unless there are large weeds or vicious weeds that seriously affect the growth of strawberries, they must be pulled out in time and the rest should not be left unchecked.
Early flower bud differentiation method
Many growers want to plant strawberries in advance, so that the early flower differentiation of strawberries, increase the value of goods. The method of promoting flower bud differentiation differs depending on the variety. For example, "Hongyan" is a shallow dormant variety. The specific methods are as follows:
â—†Slow seedling treatment
Select seedlings with robust stems with a new stem diameter between 0.8 and 1.2 cm, bundle 30 to 50 ones in bundles, remove the rotten leaves of the seedlings and excess roots, and simply soak the roots in the water. Simply treat it with hymexazol, and then use a plastic bag to protect the roots. Remember that the plastic bag cannot hold the whole strawberry seedlings in. The leaves must be exposed and the leaves loose. Strawberry seedlings were precooled at 15°C before being used. Do not take the seedlings that have just come out of the field or the seedlings that have not been scattered in the field. It is easy to get hot, and the strawberry seedlings will not be able to get hot once they start to heat up. The treated strawberry seedlings are placed in the basket and can be pressed without pressure. In order to reduce the labor cost, it is best to put more points. In the morning, the strawberry is removed at 5-6:00. After the temperature rises at 8 o'clock, the cold storage is promoted. The temperature of the cold storage is around 13 DEG C. After 4 o'clock in the afternoon, it is introduced to see the sun, but it cannot be exposed to the sun for a long time. It usually takes 10 to 15 days. When planting, it is best to go before and after mid-September. The seedlings will be quick and quick, because the strawberry seedlings have already taken root during this period. After planting, the sunshade shall be used to shade the sun, and the light shall not be allowed to exceed 14 hours. The refrigerating time does not need to be too long, because the effects of refrigerating for 20 days and 10 to 15 days are not much different.
We hope that the strawberry morning market will use high-altitude seedlings. After the 1600-meter seedlings are planted at the end of August, the strawberries can be harvested in early November. Several critical conditions of strawberry ripening, the temperature below 17 °C, the length of light less than 12 hours, time can be determined according to the species cold storage hours.
â—† colonization rooting
Hormone preparations such as rooting powder are not recommended during the strawberry planting process. If the concentration is too high, it will have a negative effect unless it is prepared by professional technicians. Farmers often have problems with their inaccurate usage. 5μmol/mol of Guoguang rooting powder can be used. It is also recommended to use bio-inoculated roots. It is recommended to use low concentrations of yttrium. Generally, actinomycetes are used. Try not to use high concentrations of Bacillus, especially macrophage-based spores. This will also affect the sterilization process. Strawberry oxygen supply to the rhizosphere is not conducive to slow seedlings.
Seedling size classification
Seedling size classification is a key part of strawberry planting, and the separate planting of small and medium seedlings facilitates later management. In the process of grading strawberry seedlings, it is not a fixed standard to follow the relative grading of size. In strawberry production, it is generally divided into A, B, and C grades. Grade A standards: New stems are more than 1 cm thick, four-leaf and one core, and 10 cm long main roots are more than 10; Grade B standards: new stems are more than 0.8 cm thick, three-leaf cores, and 8 cm long main roots are more than 8; Grade C standards: New stems are more than 0.6 cm thick, with three leaves and one core, and 6 cm long main roots are more than six. Strawberry plants with a stem below 0.4 cm are not suitable for cultivation in the greenhouse.
In the process of grading strawberry seedlings, it is necessary to remove the old leaves, diseased leaves, and stolons carried on the strawberry roots and seedlings. In recent years, the diseases of strawberry have been seriously affected, especially the soil-borne diseases. Therefore, when pruning seedlings, care should be taken to minimize wounds and reduce the chance of germ invasion.
Seedlings transportation and temporary storage
Because the strawberry is not stored and transported during the delivery and transportation of strawberries, the strawberry plants will lose water and wilt quickly. The greatest damage is the strawberry roots, which seriously affects the survival of the strawberry seedlings. For this reason, a suitable temporary storage site must be established after the arrival of the strawberry seedlings. If there is cold storage, the seedlings can be temporarily stored in cold storage. The suitable temperature for cold storage is -1 °C to 5 °C. The seedlings can not be piled up too tightly, otherwise it is not conducive to the breathing of seedlings. When cold stocks are released, the northern region can complete planting by September 20. If you do not have a cold storage, you must choose a suitable storage location. The site requires shelter from wind and shade, and effectively reduces the transpiration of seedlings and maintains their vitality. Generally, a greenhouse is built on the back wall of the greenhouse with a shade net, or it is carried out in the workshop. When transporting, the seedlings accumulate excessive heat and need to be played in time. Bundles cool down to reduce the seedlings' own consumption. In order to avoid the temporary loss of water in the roots of the strawberry seedlings, the seedlings should be sprayed in time. In order to restore the water content of the plant quickly, it is best to spray the whole plant. After water spray, in order to avoid seedlings losing water too quickly, a wet towel can be used to wrap the roots, or a wet grass cover can be placed on the strawberry seedlings to relieve the speed of water loss in the roots of the strawberry and maintain the root water content. Protect the strawberry's fibrous roots.
Since the strawberry seedlings will have a certain mortality rate in the process of easing seedlings, seedlings should be prepared in advance for production, and 20% seedlings should be purchased in advance when purchasing seedlings. After the seedlings have been planted, the excess seedlings are planted and placed in the cool shade of the back wall of the greenhouse. When dead seedlings or red root column rot were found, uniform seedlings were used to make up the seedlings.
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