What are the key points of planting and management techniques for Shatang mandarin?

The growth and development, flowering and fruiting of Shatang mandarin trees are closely related to environmental conditions such as temperature, sunlight, water (humidity), soil, as well as wind, altitude, terrain and slope aspect. So specifically, what are the key points of planting and management techniques for Shatang mandarin?

1. Key points of planting techniques for Shatang mandarin

1. Site selection

Shatang mandarin trees are generally planted on hillsides and hilly areas. Although the soil there is poor, as long as there is skill in fertilizing, and fertilizer is supplemented well before planting Shatang mandarin, a bumper harvest of fruit trees is still not a problem.

Deep plowing and hole expansion should be done well to mature the soil. It is forbidden to plant tall-stalked plants such as corn and wheat in the orchard. Reasonable intercropping in the orchard and intertillage weeding should be done well. The soil is required to have a deep soil layer (60cm) and be fertile; the soil pH value should be 5.5-7.0; the orchard terrain slope should be less than 25 degrees. When planning the orchard site, there should be necessary roads, drainage and irrigation, water storage and ancillary building facilities. In specific planning, it should be concentrated into contiguous plots as much as possible, and the orchard should be built in places with good transportation and water source conditions.

2. Seedling selection

Excellent seedlings are the basic guarantee for high yield of Shatang mandarin, so before choosing seedlings, everyone should preferably buy those with well-healed graft unions, luxuriant branches and leaves, no pests or diseases, and well-developed root systems. Such seedlings have a higher survival rate.

3. Planting time

The principle is to plant after the previous flush has matured and before the new flush buds. The whole year is generally divided into 3 periods:

Autumn planting: September-November, after the autumn flush matures. If there is irrigation, it is the best planting period, and after planting there is sufficient time to recover growth. In colder mountainous areas with severe autumn drought and early cold dew wind, autumn planting should be earlier rather than later, and it is best to plant before mid-October.

Winter planting: January-February, before the spring flush buds or when they begin to sprout. After Major Cold, the weather gradually warms up, new roots grow quickly after planting, and the survival rate is high. The disadvantage is that the spring flush in that year does not sprout uniformly.

Spring planting: April-May, planting after the spring flush matures. At this time, rainfall is sufficient and the climate is mild, so it is easy to survive after planting and growth is fast. Areas without water irrigation in autumn and winter should choose spring planting.

4. Cultivation techniques

Digging planting holes in soil: set distances with lines, dig planting holes 80cm deep and 80cm wide, then press green manure 50cm deep, backfill soil 40cm high for planting; ridging in fields for planting: open beds at 8m with ditches (ditch width 60-80cm, depth 40-60cm), raise 2 ridges per bed (ridge width 1.5m, ridge center spacing 4m, ridge height 20-30cm). When planting, moderately prune the root system of the seedlings and place them in the center of the planting hole, spread the roots, straighten the plant, and while filling soil, gently lift the seedling upward and firm it down so that the roots are in close contact with the soil. Water thoroughly to set the roots, make a 1m tree disc around the sapling, and cover with rice husks.

2. Key points of management techniques for Shatang mandarin

1. Fertilization techniques

The purpose of fertilizing young trees before Shatang mandarin bears fruit is to rapidly expand the canopy and lay the foundation for early fruiting and high yield. The effective measure is frequent light application of nitrogen fertilizer. The role of nitrogen fertilizer is to mainly promote the 3 flushes of spring, summer and autumn. The summer flush grows quickly and is plump and strong, playing a great role in expanding the canopy. As the age of Shatang mandarin trees increases, the canopy continues to expand, and the amount of fertilizer applied should increase year by year, while also applying an appropriate amount of phosphorus and potassium fertilizer. Because the root system of young Shatang mandarin trees is distributed in a small and shallow range, has weak absorption capacity, and has no fruit burden, fertilization should follow the principle of small amounts applied many times, adopting the method of frequent light application. Young Shatang mandarin orchards have many open spaces between and within rows. In order to improve the soil, increase soil organic matter, and eliminate weed growth, leguminous green manure should be planted in winter and summer, deeply plowed into the soil, and the soil matured.

2. Watering techniques

If there is no rainfall after planting, water should be poured every day for 3-4 days to keep the soil moist. After that, depending on the plant's water shortage, water once every 2-3 days until it survives.

3. Pruning techniques

If severe leaf curling is found after planting, part of the branches and leaves may be appropriately cut off to improve the survival rate. In addition, it should be noted that pruning must be coordinated with fertilizer and water management and pest and disease control. Before Shatang mandarin blooms, during the young fruit stage, and during the fruit expansion stage, spray Guaguo Zhuangdiling to provide nutrition during the flowering and fruiting period, meet the physiological needs of fruit development, and it is non-toxic, safe and hygienic, with no side effects.