The latest course of cultivation techniques and methods of Photinia rugosa

Photinia rugosa is a hybrid of the genus Photinia in Rosaceae. It is a small evergreen tree named for its bright red shoots and tender leaves. There are two common varieties: red Robin and red lips, in which the leaves of red Robin are bright and more ornamental. The leaf color of Photinia chinensis can change with the degree of new and old leaves. in spring and autumn, the new shoots and young leaves are red, bright and long-lasting, with great vitality; when the summer is hot, the new leaves sprout less and the old leaves turn dark green, bringing a fresh and cool feeling to the hot summer. The leaves that experienced frost and snow in winter are brownish red, which brings warmth to the depressed land. Photinia has strong ecological adaptability, low temperature tolerance, barren soil resistance, and shade tolerance. Under direct light, the color is more bright. At present, this new color-leaf tree species is widely valued, with broad market prospects and great potential for development. The techniques of propagation and cultivation are introduced as follows:

Nursery site selection and soil treatment

The nursery should choose leeward to the sun, convenient transportation, flat terrain, deep soil layer, loose, fertile, slightly acidic to medium soil, convenient irrigation and good drainage.

Before planting, barnyard manure 3000kg, superphosphate 50kg, soil ploughing depth is above 25cm, and fungicides and fungicides are applied to control diseases and insect pests. To make a bed, turn it deeply into thin, pick up grass roots and stones, bed width 90-120cm, height 20-30cm, path width 30cm, seedling bed length depends on the situation, generally 10-20m. After the seedbed is finished, in order to prevent weeds, spray 500 times of Gol solution before cutting.

Cuttage treatment and cutting

Adopt semi-lignified twigs or completely lignified annual branches, cut into one leaf and one bud, about 3-4cm in length, cut ecological and landscaping planning and design, etc. Keep your mouth smooth. After cutting the cuttings, quickly put them in a cool, ventilated place, spray water in time, wet the leaves, and keep the cuttings fresh, but try to cut as much as possible. Before cutting, the incision was treated with rooting agent to speed up rooting and improve the survival rate.

The cutting time can be cut in spring in early March, in summer in early June and in autumn in early September. The row spacing 4-6cm of the treated case is inserted into the soil, and the depth is more than 1 ∕ 2 of the length of the cutting. when cutting, the cuttings should be cut neatly and evenly, and the leaves should be parallel to make every effort to be neat and consistent for management, observation and inspection. The cuttings should be watered immediately after cutting so that the cuttings can be closely combined with the soil. In order to prevent the occurrence of Rhizoctonia solani and root rot, 600 times liquid of Luheng No. 2 can be used to water the seedling bed.

The construction of plastic film shed and shadow shed

After the cuttings are watered, the bamboo slices sharpened at both ends are cut down in a bow (the height from the bed to the top of the bamboo bow is about 50cm), covered with agricultural plastic film, pressed and sealed with soil, leaving no gaps. After sealing the shed with plastic film, remember that direct sunlight should be built immediately on the plastic shed, requiring the height of the shed to be 1.5lu 2m, and the shading net with a transmittance of 60-70% should be selected to shade. The plastic film shed should also be shaded to prevent direct sunlight from the side.