Careful soil preparation is an important measure to improve the survival rate of planting and promote the growth of seedlings. The flat land can be prepared for the whole garden with a depth of 30 ~ 50 cm, and 30,000 kg of base fertilizer should be applied per hectare before deepening. A garden built on a hillside can be turned into an anti-slope terrace or a fish scale pit along the contour line of the hillside.

1. Before the garden is built in the beach valley, it is necessary to dig out stones to change the soil and build drainage channels and irrigation channels. The holes of Zanthoxylum bungeanum high-yield garden are 80 cm square, generally the minimum is 50 cm square, with a spacing of 3 meters and a row spacing of 2 meters.

2. To build a garden on the hillside, we should start to do a good job of land preparation one year ago and build terraces or fish scale pits according to local conditions. The fish scale pit is 60 ~ 100 cm deep, and the planting density is 3m× 3m or 2m× 2m, which is triangular. When the terrain is complex, it is not necessary to insist on the same spacing between plants.

(2) Soil management

1. Soil and fertilizer management During the growth and development of Zanthoxylum bungeanum, timely fertilization and irrigation should be carried out, especially in the full fruit stage, and hole application or ring application can be adopted. Generally, 6 ~ 7-year-old Zanthoxylum bungeanum trees can be applied with 10 ~ 15 kg manure, and 0.2 ~ 0.3 kg calcium superphosphate can be mixed, and the amount of fertilizer applied is proportional to the age of the trees.

2. When loosening the soil for weeding and loosening the soil, dig under the crown projection and dig deeply to avoid damaging the root system. Weeding is carried out several times, and the grass is directly buried in the soil.

(3) shaping and pruning

Pruning is one of the important measures to obtain high and stable yield. Plastic pruning is carried out from the date of pepper picking to 10, and from the date of soil thawing to the date of germination (early spring). Young and prosperous trees should be cut down in autumn, and old and weak trees should be cut down in spring.

1. Pruning methods are divided into thinning and short cutting. Thinning refers to pruning branches from the base, mainly thinning dense branches, cross branches, overlapping branches, twigs, dead branches and diseases and pests. Short cut is a part of the cut branches, mainly short cut vigorous vegetative branches, long branches and aging main and side branches. Young trees are mainly thinned, and thinning is combined with short cutting. Short cutting is mainly used in full fruit period, and short cutting is combined with thinning. Old trees are updated by cutting them short.

2. Plastic Zanthoxylum bungeanum is a shrub-like light-loving tree species, and the ideal trunk should be low or no trunk.

(1) Natural happiness: the stem is 20 ~ 30cm high and the three main branches are evenly distributed. Choose to leave lateral branches on the main branch, and let the lateral branches extend outward as far as possible, so that the branch crown forms two layers, and leave more branchlets on the main branch and lateral branches to increase the fruiting parts.

(2) Multi-branch cluster: no obvious trunk, with 4-5 main branches at the base. Branches are cultivated on the main branches, and the whole tree grows.

(3) Pruning in full fruit period: after five years of planting, Zanthoxylum bungeanum will enter full fruit period. If there are too many big branches and the tree shape is disordered, some big branches should be thinned first, and then the semi-lignified parts at the top of the vegetative branches that were pumped up that year should be cut off. For long branches, those with space in the hole can be cut short, and those without space can be thinned out. Generally, trees with strong growth are cut lightly, and trees with weak growth are cut again.

(4) Pruning of old trees: Generally, Zanthoxylum bungeanum trees begin to age after more than 20 years. The plastic method is to retract the main branches for rejuvenation, cut short the inner cavity and long white branches, and cultivate the fruiting branches. For extremely old trees with extremely low yield, it is necessary to update them in time, that is, select strong branches sprouting from 3 to 5 directions at the base as backbone branches, sparse the original backbone branches, and re-cultivate new branches.