By means of orthogonal tyrotational combination design, a three-factor (N, P K) substrate cultivation experiment was conducted onNPK content for soilless culture of Malus spectabilis, and the regressive equation was established between the application level of N P K and the effects on morphological and physiological indexes of Malus spectabilis.

The variational rules on ornamental characteristics in different periods of Malus spectabilis were revealed and the influence on flower period and flower amount, fruit firmness, content of Chl, situation of fruit and leaf drop were tested with NAA (naphthaleneacetic acid) of different concentration.

By means of orthogonal tyrotational combination design, a three-factor (NPK) substrate cultivation experiment was conducted on N P K content for soilless culture of Malus spectabilis, and the regressive equation was established between N P K content and the application level.

Research on Cutting Seedling Raising Techniques of Ilex purpurea;

The Chinese ilex is chosen as raw material, from which Flavonoid is isolated and purified by 2SI-106A type macroporous resin after microwave fragmentation and back-flow extraction.

Study on extraction and characterization of red pigment from the fruits of Ilex rotunda Thunb;

Dongguo pear was one of special materials in Lanzhou city.

The fruit vinegar with healthy function is produced using Dongguo pear as raw material after alcohol fermentation,lactic acid fermentation and acetic fermentation.