Seedling maintenance standard

The completion of the late watering, pruning, weeding, medication, seedling replenishment and other management work of seedling planting is collectively referred to as maintenance, so what is the standard of seedling maintenance?

Seedling management is a part of greening management, the so-called greening conservation refers to the management and maintenance of green space, vegetation and other plants, is still a new industry, due to the particularity of the industry is being recognized by the society, conservation management standards set up three levels.

First-level standard:

1. The growth potential is good: the growth exceeds the average growth of the tree species.

2. Leaves are robust: leaves are normally deciduous, leaves are large and thick, under normal conditions, leaves are not yellow, leaves are not scorched, leaves are not rolled, leaves are not deciduous, and there are no insect dung and insect nets on leaves.

3. The branches are strong: there are no obvious dead branches, the branches are stout, and the winter branches have been lignified. , live eggs and insects without stem borer. The crown is complete and beautiful, the branching point is suitable, the distribution of the main and lateral branches is symmetrical, the quantity is suitable, and the ventilation is bright.

Second-level standard:

1. The growth potential is good: the growth reaches the average growth of the tree species of this specification.

2. The leaves are normal: the color, size and thickness of the leaves are normal, and the number of serious yellow leaves, scorched leaves, rolled leaves, wormed leaves, insect nets and dusty leaves is less than 2%.

3. Strong branches: no obvious withered branches or dead branches. The number of plants with stem borer is less than 2%. The crown is basically complete, the distribution of main and side branches are all known, the crown is ventilated and transparent, and most of the flowering shrubs are pruned.

Level III standard:

1. The growth potential is basically normal.

2. The leaves are basically normal: the leaf color is basically normal, and there are serious yellow leaves, scorched leaves, rolled leaves, plants with insect dung and insect net dust.

3. The branches are basically normal: no obvious withered branches and dead branches. The number of plants with stem borer is less than 10%. More than 90% of the canopy is basically complete and has greening effect. The missing plant is less than 6%.

In fact, the maintenance of seedlings is relatively simple, only need to pay attention to the late watering, topdressing and pest control and other basic management work, most of the plants can reach the first-class standard.