Abstract:

Using randomized block experiment design and variance analysis, multiple comparisons and regression analysis methods; the effects of the container-growing seedling were systematically analyzed. The results showed that the basal diameter, H/D, total fresh mass and under ground dry mass of container seedling presence significant difference; the difference of dry mass, under ground mass and aboveground fresh mass attained best significant level; the dry mass of phyllogen, activity of root system and soluble sugar content also presence significant difference. The volume mass of the medium and the contents of total P and soluble P were major factors influencing seedling growth. Alkali-decomposed nitrogen in the medium was the major factor influencing the ratio of the aboveground and underground parts of the seedling. The recommended medium prescription is surface garden soil: yellow earth: pine-forest surface soil: decomposed manure: coal cinder(=40∶15∶20∶20∶5) for Chinese Pine. The best medium is: the texture is neutral, apparent density is 10 t·m^-3, total P is 0.8 g·kg^-1, soluble P is 90 mg·kg^-1, soluble K is 260 mg·kg^-1,alkali-decomposed nitrogen is 112 mg·kg^-1, organic matter content is 3.4%.

Key words: Pinus tabulaeformis, container seedling-raising, medium property, growth and physiological characteristics, medium components