What are the key technical points of planting and management of sugar tangerine?

The growth and development, flowering and fruiting of sand sugar orange trees are closely related to temperature, sunshine, moisture (humidity), soil, wind, altitude, topography and slope aspect, so what are the key technical points of planting and management of sugar orange?

1. Key points of planting techniques of sand sugar orange

1. Address selection

Sugar orange trees are generally planted on hillsides and hills, where the soil is poor, but as long as fertilization is skillful, adding fertilizer before planting sugar oranges will not be a problem for high yield.

We should do a good job in deep turning and expanding holes and ripening the soil, prohibit the planting of tall plants such as corn and wheat in the garden, and do a good job in rational intercropping and weeding in the orchard. It is required that the soil layer is deep (60 degrees) and fertile, the soil ph value is 5.5-7.0, and the slope of the orchard is less than 25 degrees. When planning the garden, there shall be necessary roads, drainage and irrigation, water storage and ancillary construction facilities. In specific planning, we should concentrate as much as possible and build gardens in places with good transportation and water sources.

2. Seedling selection

Excellent seedlings are the basic guarantee for the high yield of sugar orange, so before choosing seedlings, it is best to buy those seedlings with good interface healing, luxuriant branches and leaves, disease-free and well-developed roots, so that the survival rate of such seedlings is higher.

3. Planting time

The principle is that the old shoots are ripe last time, and the new shoots are planted before sprouting. The whole year is generally divided into three periods:

Qiu Zhi: from September to November, when the autumn shoots are ripe. If water irrigation is the best planting period, there is plenty of time to restore growth after planting. In the cold mountain areas where the autumn drought is serious and the cold dew wind comes early, autumn planting should be done sooner rather than later, preferably before the middle of October.

Winter planting: from January to February, spring shoots may begin to sprout before sprouting. Greater Cold warmed up gradually after that, the new root grew fast after planting, and the survival rate was high. The disadvantage is that the spring shoots vomited differently in that year.

Spring planting: spring shoots are planted after maturity from April to May. At this time, Rain Water is abundant, mild climate, easy to survive after planting, fast growth. It is better to plant in spring in the areas with no water irrigation in autumn and winter.

4. Cultivation techniques

Soil digging planting holes: drawing wire and fixed distance, digging planting holes, each 80cm of depth and width, then pressing green manure 50cm deep, backfill soil 40cm high planting; field ridge planting: 8 meters with trench (groove width 60-80 60cm, depth 40-30cm), 2 ridges per box (ridge width 1.5 m, ridge center distance 4 m, ridge height 20-30cm). When planting, the root system of the seedling is appropriately trimmed and placed in the center of the planting hole to stretch the root system and straighten it. While filling the soil, the seedling is raised gently and firmly, so that the root system is closely connected with the soil. Pour enough water on the roots, make a 1m plate around the seedlings and cover it with bran shells.

2. Key points of management technology of sugar orange.

1. Fertilization technology

The purpose of fertilization for young trees before fruit bearing is to rapidly expand the crown and lay the foundation for early fruiting and high yield. The effective measure is to apply nitrogen fertilizer frequently and thinly. The role of nitrogen fertilizer is to attack the shoot three times in spring, summer and autumn, and the summer shoot grows fast and fat, which plays an important role in expanding the crown. With the increase of the age of sugar tangerine, the crown continues to expand, the amount of fertilizer should be increased year by year, and appropriate amount of phosphorus and potassium fertilizer should be applied at the same time. Because the root distribution of sugar orange young trees is small and shallow, the absorptive capacity is weak, and there is no fruit burden, therefore, fertilization is based on the principle of a small number of times, and the method of frequent and thin application is adopted. There are more open spaces among the rows of young trees in sugar orange orchard. In order to improve the soil, increase soil organic matter and eliminate the breeding of weeds, legume green manure should be planted in winter and summer.

2. Watering technology

If there is no rain after planting, water should be drenched every day for 3-4 days to keep the soil moist. Depending on the water shortage of the plant, it should be drenched every 2-3 days until it survives.

3. Pruning technology

If the rolled leaves are found to be serious after planting, some branches and leaves can be cut off properly to improve the survival rate. In addition, the main attention is that pruning must cooperate with fertilizer and water management and pest control. Spraying melon and fruit Zhuangtiling before flowering, young fruit stage and fruit expansion stage provides nutrition for flowering and fruit stage, meets the physiological needs of fruit development, and is non-toxic, safe and hygienic, without any side effects.