In afforestation, seedlings often need to be planted. Seedlings implantation technology in place not only has a high survival rate, but also grows better in the same year after planting than seedlings without planting.
The so-called nursery stock planting is the use of moist soil to temporarily bury the seedling roots. In general, after the seedlings are transplanted, they cannot be transplanted in time and an auxiliary measure is taken to prevent water loss in the root system. Practice has shown that the suitable forest species for culturing include Liu, Guochao, Fatong and citrus, peach, plum and other fruit tree seedlings. However, buckwheat and other tree species have low water content during dormancy and the survival rate after planting is not. high. According to the specific conditions of different tree species, determine whether to adopt the method of planting.
Seedlings can be divided into two types of temporary planting and wintering. Seedlings that are not suitable for prolonged planting time may be temporarily sterilized. The method is to dig a false sap with a well-drained and well-drained place, with a groove depth of 30 cm and a width of 50 cm. Put the fake seedlings in rows in the ditch, cover the roots of the seedlings and the lower part of the seedling stems with 15 cm to 20 cm with a fine wet soil, and step on them to prevent water loss through the wind. Generally about 20 centimeters of earth-covering thickness is too thick and labor-intensive and easy to heat, so that the root moldy rot, too thin will not get water, moisturizing effect.
To raise seedlings in the fall, wintering seedlings can be used for wintering. The method is to select a well with a well-drained, shaded and leeward place to dig a ditch perpendicular to the direction of the local main wind before entering the winter. The size of the ditch depends on the size of the seedlings. For the first-year seedlings, the depth of the ditch is generally 30 cm and the width of the ditch is 50 cm. Large seedlings can also be deepened appropriately. On the windward side of the ditch, a 45-degree angled wall is formed. Then, the individual plants are evenly distributed on the inclined wall so that the roots of the seedlings stretch in the ditch, and then the roots of the seedlings and the lower part of the seedling stems are covered with wet soil. Step on solids to make the roots and soil close. The soil moisture in the ditch should be 60% of its maximum water holding capacity, that is, it should be held in a group, loosen and loosen, and the soil covering the root system must not contain weeds, deciduous and other easily-heating substances, so as to prevent the roots from being heated and moldy and affect the seedlings. The life force.
The temporary spurious planting and over-wintering false planting spurs should be selected at the lee place to prevent pumping; the second is to be selected at the shade to prevent germination before spring planting and affect survival; third is to select high-lying, well-drained water. Place to prevent water in the ditch during winter precipitation. It is also necessary to do seedlings and planting to reduce the exposure time of the roots in the air, to maintain the moisture in the root system to the maximum extent, and to increase the survival rate of seedling planting.
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