What are the key points of grapefruit cultivation techniques?
We are not particularly familiar with grapefruit. In fact, it is not very different from ordinary pomelo. The biggest difference is that the flesh of grapefruit has a slight pale pink color, and its taste is a little better than ordinary pomelo. The cultivation method is also similar, though there are some differences. Today let us learn together what the key technical points of grapefruit cultivation are.
1. Planting with large seedlings
When planting grapefruit, try to choose large seedlings, that is, plant only after the grapefruit seedling has grown to about one meter, and seedlings with two or three branches are best. This will greatly increase the survival rate, and at the same time the grapefruit will bear fruit somewhat earlier. When planting, note that generally one plant is set every two meters.
2. Fertilizer and water management
Grapefruit requires relatively more nutrients, so after planting, composting should be carried out every year, and at the same time sufficient water needed for grapefruit growth must be ensured, so that its service life will be increased. The fertilizer applied in the first year is generally manure, farmyard manure, decomposed fertilizer, organic fertilizer and urea. In each following year, fertilization can be carried out according to the different levels of nutrients in the soil and the growth of the seedlings. The most commonly used are farmyard manure, urea, potassium fertilizer and phosphate fertilizer. When grapefruit is flowering and bearing fruit, if there is no rain, remember to water it.
3. Orchard management
Ordinarily we can spread a layer of grass in the grapefruit orchard. This can maintain moisture in the soil, and after this layer of grass decomposes it can also enhance soil fertility. Second, some excess branches and leaves of the grapefruit should be pruned off. This can let the grapefruit flower and bear fruit as early as possible, advance the fruiting time, and at the same time ensure the density of fruit trees in the orchard, allow them to carry out photosynthesis normally, and ensure the quality of the grapefruit.
4. Temperature management
Grapefruit's ability to adapt to temperature is not particularly good. If you want to produce high-quality grapefruit, you must strictly control the temperature. The most suitable growth temperature for grapefruit is 20°C to 25°C, and generally the temperature cannot be lower than 18°C. Therefore, relatively little grapefruit is planted in our country. It is generally planted in areas where the temperature is relatively stable and warm throughout the year. Of course, if it is to be planted, greenhouse technology can be used to regulate the temperature. However, it can also survive in very cold environments, for example at minus 1°C, only the quality of the pomelo produced is not high.
5. Disease and pest control
Like other pomelo trees, the most common diseases of grapefruit are canker and huanglongbing. If the symptoms are not particularly serious, it is enough to cut off the diseased branches and leaves. If it is more serious, chemical treatment is needed. The treatment method is similar to that for other pomelo trees, but when carrying out chemical treatment, be sure to pay attention to the dosage. At the same time, prevent the aging of the pomelo tree, extend its service life, and also ensure yield and quality.
The above are some key points that Qinnong Network has brought to everyone about what needs attention when planting grapefruit. We hope it can help everyone. At the same time, if everyone wants to learn more interesting things, you can follow us. The editor is here waiting for everyone's replies.