What fertilizer is best for Shatang mandarin? Sharing new methods for controlling summer shoots
As technology becomes more and more advanced, people can eat fresh fruits of different varieties no matter what season it is. Today, the editor wants to introduce a fruit that is also deeply loved by many friends, called Shatang mandarin. So many people in the planting industry seem to have seen a business opportunity and have begun to grow Shatang mandarin. So, what fertilizer is best when people grow Shatang mandarin, and what methods are there for controlling summer shoots in Shatang mandarin?
What fertilizer is best for Shatang mandarin
1. Fertilizing Shatang mandarin requires attention to methods and techniques to achieve low fertilizer input with high efficiency, economy, and safety. When fertilizing, avoid burying fertilizer at the root crown and apply it vertically outside the tree canopy. If the soil is too dry, fertilizing can cause reverse osmosis at the roots, leading to dehydration and root damage; if the soil is too wet, fertilizing can cause root oxygen deficiency and root rot. Therefore, fertilization should be done when the soil is neither dry nor too wet. Do not apply nitrogen fertilizer in a one-sided way; pay attention to increasing the application of phosphorus, potassium, calcium, and magnesium fertilizers. If urea application causes drying at the leaf tips or in the middle of the leaves, then the orchard should stop applying it. Water-soluble fertilizers made from fermented human and livestock manure and urine must be fully decomposed before use.
2. The fertilization principle in spring and summer is to apply frequently and lightly to avoid fertilizer deficiency or excessive fertilization. Applying nitrogen fertilizer too early or too much in spring will make spring shoots too long, with long internodes that make fruit setting difficult, and can easily cause premature sprouting of summer shoots; excessive summer shoots will cause a large amount of fruit drop. Therefore, an important measure to control the premature and excessive sprouting of summer shoots is not to apply excessive fertilizer in spring, and to do a good job in fruit retention so that fruit suppresses shoots. Too much or too little potassium fertilizer, boron deficiency, low zinc, low magnesium, low calcium, weak branches, or insufficient light make fruit cracking more likely. For autumn and winter fertilization, first, apply base fertilizer heavily to help restore the vigor of Shatang mandarin trees.
New methods for controlling summer shoots in Shatang mandarin
1. Manually remove summer shoots, once every few days, until autumn shoots or late summer shoots are released.
2. When summer shoots are about 3 cm long, spray once with the new special citrus summer shoot product “Shashengling”. When using this pesticide, note that in sunny or high-temperature weather, spray only after 4 p.m. Precautions: when summer shoots are below 3 cm, add 15 kg of water to each packet of Shatang mandarin product, stir thoroughly, and spray onto the young shoot leaves. If it rains within 4 hours after spraying, respraying is needed. Use a small-aperture nozzle, with fine mist droplets, and spray the young leaves evenly until they drip. It cannot be mixed with other chemicals.
3. For newly planted fruit trees, new shoots need to be cultivated. Pay attention to damage to new leaves by citrus leafminer, and spray pesticides in time when new shoots emerge to protect the branches and leaves.
Growing conditions for Shatang mandarin
1. The growth and development, flowering, and fruiting of Shatang mandarin trees are closely related to environmental conditions such as temperature, sunlight, water (humidity), soil, wind, altitude, terrain, and slope aspect. Among these conditions, temperature has the greatest impact. Even a temperature difference of 0.5°C can sometimes produce completely different results. High temperatures are also unfavorable for the growth and development of Shatang mandarin. When air temperature and soil temperature are above 37°C, the fruit and root system stop growing. Shatang mandarin is a tree species with relatively strong shade tolerance, but good sunlight is still needed for high quality and high yield. Generally, areas with an annual sunshine duration of 1200-2200 hours can grow normally.
2. The planting pit size for Shatang mandarin is 0.5×0.5×0.5 m in length, width, and depth respectively. When digging the pit, pile the topsoil and subsoil separately. When backfilling the pit, put 10 jin of farmyard manure, 5 jin of weeds, 1 jin of phosphate fertilizer, and 0.5 jin of lime in each pit. When backfilling, mix the farmyard manure, phosphate fertilizer, lime, and topsoil evenly and backfill them in layers with the weeds. The backfilled soil should be 30 cm higher than the pit surface and made into a fruit basin. On slopes, horizontal terraces should be opened. The planting spacing is 2.5×3 m, with 80 trees planted per mu.
How many years of planting before Shatang mandarin begins production
Shatang mandarin can begin production after 3 years of planting. Shatang mandarin generally blooms in late March, begins to become sweet in late September, and is harvested from late October to early November. In cultivation techniques, it is not strict, has wide adaptability, and has a certain resistance to stress. It is one of the stable and high-yielding citrus varieties. Generally, it can bear fruit after 3 years of planting, and enters the full production period after 5 years. The yield per tree is 100-150 jin, and high-yielding trees reach 350-400 jin. The fruit is storage-resistant.
In the above article, the editor also taught everyone some planting methods for Shatang mandarin. Has everyone learned them? It is now midsummer, and many people have no appetite to eat, so everyone should also eat a moderate amount of fresh vegetables and fruits. When eating fruit, it should also be eaten in moderation. Do not be greedy.