How many Forsythia suspensa seedlings should be planted per mu, and what are the economic benefits?

In spring, winter jasmine blooms in profusion, adding a lot of color to both sides of the road, and Forsythia suspensa, which looks very similar to it, also blooms at this time. So when planting it, how many Forsythia suspensa seedlings are needed per mu? What are the economic benefits of planting?

1. How many Forsythia suspensa seedlings are needed per mu?

Forsythia suspensa generally blooms in early spring. It likes light and prefers a warm, humid climate, and it is also very cold-tolerant; it tolerates drought and poor, thin soil, but is afraid of waterlogging. It can generally be planted in spring, summer and autumn. About 300 seedlings are needed per mu, and the specific planting quantity should be determined according to seedling specifications and terrain. In addition, the following points should be noted when planting:

1. Selection of the planting plot for Forsythia suspensa

It is best to use sandy loam with deep soil layers, loose and fertile soil, and good drainage, or sheltered, sunny mountain land or gentle slopes for block planting; if it is not large-scale planting, it can be planted sporadically using wasteland, roadsides, field edges, field corners, around houses, and gaps in courtyards.

2. Temperature conditions for Forsythia suspensa

The optimum growth temperature for Forsythia suspensa is 18-20°C. When the temperature is higher than 35°C or lower than -15°C, its growth will be inhibited. The suitable temperature for sowing is 10-15°C, the optimum temperature for the flowering period is 18-20°C, and during the growth period the annual frost-free period needs to be more than 170 days.

3. Water and fertilizer management for Forsythia suspensa

Within its natural distribution area, the annual precipitation requirement is 800-1000 mm, and the relative humidity is 60%-75%. If there is too much rainfall, remember to drain the accumulated water in time; apply thin fertilizer frequently during the seedling stage of Forsythia suspensa. After planting, apply decomposed barnyard manure, cake fertilizer or farmyard manure each winter along with loosening the soil and weeding, and fertilizer can be applied once more before flowering in spring. During the seedling stage of Forsythia suspensa, the soil should be loosened and weeds removed frequently. After planting, the soil should be cultivated and weeds removed once each winter beside the Forsythia suspensa trees.

4. Shaping and pruning of Forsythia suspensa

After leaf fall in winter, when the young Forsythia suspensa tree is about 1 m tall, cut off the top shoot; pinch off the growing tips in summer, and thereafter select and retain 3-4 strong branches each year to cultivate as secondary main branches; each winter, cut off dead branches, tangled branches, overlapping branches, crossing branches, weak slender branches, as well as leggy branches and diseased and pest-damaged branches.

2. What are the economic benefits of planting Forsythia suspensa per mu?

Forsythia suspensa is a plant that is planted once and yields returns for many years. It has considerable economic benefits, and the economic benefits produced by planting on different terrains are different.

1. Benefits of planting Forsythia suspensa on barren hills

When planting Forsythia suspensa on barren hills, about 200 plants are planted per mu. The yield per plant of 3-year-old Forsythia suspensa can reach 0.4 kg; in the eighth year it enters the full fruiting period, and the yield per plant can reach 1 kg; during the full fruiting period, the yield per mu reaches 200 kg. Calculated at a price of 40 yuan per kg, the income per mu can reach 8,000 yuan, and after deducting costs the benefit is about 5,000 yuan.

2. Benefits of planting Forsythia suspensa on flat land. About 400 Forsythia suspensa plants are planted per mu on flat land, the yield per mu can reach 480-600 kg, the output value ranges from 9,600-12,000 yuan, and the income after deducting costs ranges from 7,600-10,000.

The above is all the content about Forsythia suspensa planting. I hope it can solve your questions.