To save seeds, the amount of seeding should be calculated scientifically(8 cell trays bulk). Relevant data include: planned seedling yield per unit area (or unit length), seed purity, thousand-grain weight, germination potential, loss coefficient of seeds and seedlings, etc. When the data is accurate and complete, the current seeding methods include seeding and on-demand And digital broadcasting(110mm plastic grow pots). The depth of the ditch varies with the size of the seed.
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Generally only used for large seeds, such as walnut, Bancai, Shan nationality, mountain apricot and so on(12 cell trays bulk). The amount of seeding should be controlled and the next planting should be even.For example, large seeds should be thick and small seeds should be thin: cotyledons should be straight and unearthed, and cotyledons should be thin(6 inch plastic nursery pots). In manual sowing, in order to make the sowing line straight, generally draw a line first, and then ditch it according to the line.
(cheap plastic plant trays wholesale suppliers uk)In order to make the seedlings unearthed early and neat, it is required that the thickness of the cover soil is appropriate and uniform(18 cell trays bulk). Soil thickness has a great influence on soil moisture, field germination rate, sooner or later emergence and neatness. The thickness of the overburden should be determined according to the characteristics of the tree species(plastic terracotta pots wholesale). To sow small seeds, in order to plant them evenly, mix them with fine sand before sowing.
Climatic conditions, soil texture, soil covering materials and sowing season are all related to the thickness of the covering soil(36 cell trays bulk). Sowing is an important part, it will affect the field germination rate, the speed of emergence and regularity, so it has a certain impact on the yield of qualified seedlings. The purpose of covering the soil is to keep the water and prevent the harm of the seeds and birds and animals blown by the wind(cheap nursery pots). The depth of the ditch should be uniform and straight.
In order to prevent the sowing ditch from drying during sowing, cover the soil while sowing the ditch(40 cell trays bulk). Overly thick soil will reduce the germination rate of the field circle. The specific thickness of the overlying soil is as follows: very small seeds such as poplar, willow, press, birch, barn and other seeds are about 0.15-0.5 cm, that is, the degree of loosing visibility: small seeds 0.5~1 cm(12cm plastic grow pots): medium seeds 1~3 Centimeter: Large seeds are 3-5 cm, up to 8 cm under dry conditions.(cheap plastic plant trays wholesale suppliers uk)
Large and medium-sized seeds are generally covered with soil from the sowing site, and small-sized seeds should be covered with soil with more sand content(40 cell tray in bulk). The seeds of extra small pull (poplar, willow seeds) can be sown directly without ditching. However, it is not appropriate to suppress the sticky soil to prevent soil compaction and unfavorable seedlings(greenhouse pots). For non-sticky and wet soil, when the top soil is dry, suppress it again, careful pressure should be applied after covering the soil.
(cheap plastic plant trays wholesale suppliers uk)Extremely small seeds such as poplar, willow, birch, paulownia and paulownia are generally covered with sand, humus soil, peat soil, skins and sawdust(51 cell trays bulk). When manual sowing, the efficiency of sowing with a seeder is higher than that of manual sowing, and the quality of sowing is also uniform. In order to make the soil and seeds tightly combined(plastic plant pots canada), so that the seeds can make full use of capillary water, in the case of early dry weather and loose soil and insufficient soil moisture.