Reproduction points

Seed reproduction. It is advisable to retrieve the mature fruit peeled, slightly dried after sowing, should not be sunlight and storage. Can also be propagated by cuttings or high-pressure method, spring is the most suitable period.

Cultivation and maintenance: Cultivation and management is easy, in the climate zone, no choice of soil, few pests and diseases. Cultivation of soil to fertile, moist, well-drained soil or sandy loam is the most suitable.

According to the Hainan walnut light-loving, drought-resistant and high-temperature drought, the soil requirements are not strict, the root system is developed, fast-growing, adaptable biological characteristics, afforestation can be widely selected in acidic or alkaline soils, can choose to use the timber afforestation land, but also in the need to carry out the transformation of the set of species of coniferous pure forests, sparse woodland, the residual broadleaf forests and shrublands, such as the level of ecological functions, ecological function of the public welfare forests of the level of the poor The forests can also be selected in the areas that need to be transformed into coniferous pure forests, open forests, residual broad-leaved forests and shrub forests with poor ecological functions.

Foresting density

Hainan pawpaw artificial afforestation is suitable for mixed forests, according to the cultivation of different purposes of design. Create timber forest, Hainan walnut and fir or pine species can be mixed planting, mixed ratio of 1:2 ~ 3, can also be used with wood, mahogany, red cones and other broad-leaved species for mixed planting, mixed ratio of 1:3 ~ 4; mixed way can be mixed rows or rows of mixed with mixed, and should be appropriate dense planting, plant spacing 2 ~ 2.5 meters. When creating ecological public welfare forests or scenic forests, it can be mixed with Descending Yellow Sandalwood, Small-fruited Parsnip, Mullein, Lingnan Mangosteen, and Gurgling Hagwood, etc., with a mixing ratio of 1:4-5, and it is preferable to mix them in an irregularly configured way, with a spacing between plants and rows of 2.5 to 3 meters. In the thinning forest, residual forests, coniferous pure forests and other ecological public welfare forests in the transformation, according to the specific circumstances of the set of seeds.

Meticulous land preparation

Prior to afforestation, the afforestation land is shoveled parallel to the belt along the contour line of the mountain at a distance of 2 to 3 meters, and the weeds, weed shrubs, and other grass and vine vegetation within the belt are all shoveled cleanly, and at the same time, the weeds outside the belt, weed shrubs are split off, and then hole punched in accordance with the requirements of the spacing of plants within the shoveled belt; for the replanting of hedging, it can be done directly in the need to replant places for the splitting of weeds, Weed irrigation about 1 meter × 1 meter position. Then digging holes, hole specifications are generally 50 cm × 50 cm × 40 cm. When digging holes, first dig up the soil inside the hole and pile it up next to the hole, and then mulch it after weathering for a period of time. Then combined with mulching work base fertilizer, each hole should be applied to the composite fertilizer 0.2 ~ 0.3 kg and outside the hole around the fertilizer topsoil broken up and mixed after mulching. Mulching first in the hole left, right, on each of the three sides of the shovel 67 cm, humus and fertile topsoil into the hole, mixed with the base fertilizer, and then covered with weathered heart soil, mulch should be higher than the hole surface more than 10 centimeters, mulching is completed after the hole was anti-tilt shape. In addition, mulching should pay attention to filling the soil while breaking up the soil, picking up stones, roots, grass and other debris that hinder tree planting.

Propagation methods

Selecting good seedling: afforestation seedlings are generally required to choose a good species of nutrient bag container seedlings or bare-root seedlings of one year old, requiring the seedling height of 50 centimeters or more, the root system is well developed, free of pests and diseases, no mechanical damage, strong seedlings.

Bare-root seedling planting: generally in the spring hole soil is wet when the rainy days. Seedlings before afforestation should be appropriate to cut off the branches and leaves, the root system, depending on the situation, appropriate pruning; before planting with yellow mud slurry mixed with a small amount of phosphorus fertilizer and rooting powder (such as GGR-6) on the slurry root protection of seedlings, planting in the hole or leaning against the inner wall of the hole, the requirements of deep planting, root Shu, stepping on the solid, planting straight, not nesting roots, not against the mountain, planted after covering the loose soil, the requirements of the planting in March before completion. But and pulp root (application), choose rainy days planting. Planting requires Shu root, compaction, proper deep planting.

Nutrient bag seedling planting: generally in the spring. Before planting the nutrient soil drenched with water, planting one hand lightly press the nutrient soil, one hand will be completely torn off the nutrient bag, in the hole or partial near the wall of the hole planting, deep planting, compaction (compression, pay attention to the side of the nutrient ball, do not crush the nutrient ball), planting straight, keep the nutrient soil intact, and then covered with the appropriate amount of loose soil. In 3 to 4 years after planting, depending on the growth of young forests, continuous loosening and weeding, hole expansion and fertilization.

Specific method is, according to the forest phase, grass phase, etc., the first and second half of the year in the appropriate time to carry out a nurturing, will be within the band or around the hole (hole shoveling is generally 1 meter around the hole × 1 meter range) weeds, weeds, shrubs with a knife or shoveling clean with a hoe, do not press the green, and will be chopped or shoveling weeds cultivated in the roots of the young trees, and in the young trees around the loosening of the soil and soil cultivation. Fertilizer is applied by furrow method, and 0.1 to 0.2 kg of compound fertilizer is applied to each young tree. The tree trunk is straight, fast-growing, fast-growing, evergreen, beautiful tree posture. The flowering period is long, white flowers all over the tree, the flowers are thick and fragrant, the flower shape is beautiful, clean and elegant; the fruiting period is long, the fruit is full of fruit, the fruit shape is beautiful, the fruit color is fresh.

For the excellent garden shade trees and street tree species, can also be used to create mixed forest species. 1, diuretic swelling: can remove toxins and excess water in the body, promote blood and water metabolism, diuretic, edema effect.

2, replenish blood and benefit qi: suitable for skin color is not bright, lose redness, cold hands and feet of the crowd.

3, beneficial to the liver: can promote the circulation of liver qi, soothe liver depression.

4, tonifying the kidney: symptoms of "cold", lumbago, cold limbs, chills, edema kidney yang deficiency. Symptoms of "heat", mainly lumbago, hot and dry, night sweats, sweating, dizziness, tinnitus, etc. kidney yin deficiency.

5, strong tendons: strong tendons, collaterals, recovery from fatigue and regulate lumbar and knee weakness.

6, bone-strengthening: rich in calcium, can stimulate the growth of bone matrix and bone cells, so that calcium salts are deposited in bone tissue.

7, efficacy: treatment of cold asthma, allergic asthma.