Can you plant Sanhua plum in Bijie, Guizhou?

Bijie belongs to the humid climate of north subtropical monsoon, with no heat in summer and no cold in winter. Sanhua plum is a deciduous fruit tree in temperate zone, which has strong adaptability to climate. It can be planted in this area and can be managed by choosing good land.

Growing habits:

Sanhua plum is a deciduous fruit tree in temperate zone and has strong adaptability to climate. However, when it comes to low-temperature frost or continuous rainy weather, it will cause serious flower falling and even loss of harvest. On the other hand, the high temperature in spring is not conducive to the formation of fruits.

Sanhua plum is a fruit tree that likes sunshine and is not suitable for cultivation in places with bad sunshine. Attention should be paid to planting density and pruning to meet its light demand. Insufficient light will not only affect its growth results, but also affect its quality and color.

Sanhua plum is not harsh on soil, as long as the soil layer is deep but not too barren, and the slightly acidic soil with deep soil layer and rich humus is the most suitable for cultivation.

Site conditions:

Choose loam and sandy loam; Thickness of soil layer ≥ 60 cm; The pH value is 6-6.5; Organic matter content ≥2.0%.

Sanhua plum is a shallow-rooted fruit tree. The root spread can be (0.6- 1) times larger than the crown spread, and the root depth is only 1/5- 1/3 of the tree height. The absorption roots are generally within 45cm, and 10-30 cm is the vigorous growth area.

Therefore, its roots have higher requirements for the air content in the soil. Generally, when the air content in the soil is ≥5%, the root system begins to grow, and it grows normally at ≥ 10%. When it is < 2%, the root system becomes obviously thinner and dead roots appear.

Training points:

From mid-February of 65438 to early February of the following year, peach was used as rootstock for grafting and seedling raising, and the total number of plants per hectare was ≤630.

Apply decomposed organic fertilizer ≥ 15t, bean cake fertilizer ≥ 2.5t and nitrogen fertilizer ≤ 0. 15t per hectare every year.

Fertilization requires the combination of base fertilizer and topdressing. The base fertilizer is mainly decomposed farmyard manure, and 25-50 kg of decomposed farmyard manure is applied to each mature Sanhua plum.

Topdressing compound fertilizer 1 time before flowering, topdressing 1 time after physiological fruit drop, and spraying 0.2% boric acid aqueous solution to supplement boron at the initial flowering stage.

Spraying 0.4% potassium dihydrogen phosphate 1-2 times from late May to early September, and spraying 0.2%-0.3% calcium nitrate 1-2 times during fruit expansion.

Pruning in winter is the main way to ensure ventilation and light transmission of crown. In mid-June, when the fruit surface is colored ≥ 1/3, it will be harvested in batches.