Arbor, height 10- 15(-25) m, DBH 30-50(-90) cm; Bark is dark gray with irregular longitudinal cracking. Leaflets are small, oblong, obtuse or slightly concave at the apex, rounded at the base, and glabrous.
Cultivation techniques and methods of tamarind
1, seedling raising technology
The offspring of tamarind seedlings have little variability and can retain the excellent characteristics of the mother plant. Therefore, when raising seedlings, we should choose excellent mother plants with good quality and many fruits, collect mature fruits, remove peel and pulp, take out seeds, wash them and dry them for preservation. In autumn or spring, sow (hole sowing, row sowing and occupation sowing) on the prepared seedbed. The seedbed has fertile soil and convenient irrigation. It is covered with 2~3cm of sand or fine soil, and then covered with pine needles or grass. Pay attention to keep the soil moist and shade when the light is strong. When the seedling height is 6cm, it is moved into the seedling bag or left in the seedbed for growth. Soaking seeds in warm water at 25~30℃ for 5 ~ 6 hours before sowing is more beneficial to germination.
Step 2 transplant
Transplanting is best done before germination in spring. When transplanting, sufficient base fertilizer should be applied, especially when planting on barren land. The holes should be large and deep, and sufficient organic fertilizer should be applied to facilitate the expansion of roots and the growth of aboveground parts.
Step 3 manage
After transplanting, attention should be paid to strengthening management, applying nitrogen fertilizer and pruning water-soluble fertilizer to promote plant growth. Tamarind is resistant to high temperature and likes light. With sufficient light, more fruits will be produced with good quality. On the contrary, if you shade, you will bear less fruits and have poor quality. Therefore, pruning and shaping of long branches, dead branches and dense branches should be carried out every year to ensure ventilation and light transmission of trees, promote the germination of new branches, and avoid years, which is conducive to stable and high yield and improve quality. Pruning should be done after fruit picking in late spring and before spring bud germination.
4. Harvest, storage, transportation and sales
From March to April of the following year, the pods were dried, the exocarp and pulp were separated, and the base of the ear shaft was simply separated from maturity. Avoid breaking the shell of the fruit when picking, which will affect the appearance and price of the fruit. In addition, attention should be paid to avoid damaging and breaking vegetative branches, which will affect the yield in the next year. Suanjiao is resistant to storage and transportation. The harvested fruits can be stored at room temperature after cutting off branches and drying, and can also be packed into plastic bags with different weights for transportation and sales according to varieties.