Container seedling raising method for torreya grandis

Abstract

The invention provides a container seedling raising method for torreya grandis. The method includes the following steps that (1) a nursery field is selected and prepared, wherein a sandy land parcel which is flat, leeward, and capable of being exposed to the sun, being normally ventilated and normally draining is selected as the nursery field for container seedling raising for the torreya grandis, weeds and stone are cleared away, then soil is flattened to serve as a seedbed, and a sunshade is set up above the seedbed; (2) substrates are prepared and bagged, wherein yellow soil, thoroughly decomposed pig manure, fly ash, compound fertilizer, nitrogen-fixing bacteria and phosphate solubilizing bacteria are selected, evenly mixed, piled up, and sealed with a plastic film for three days to obtain the substrates, the substrates are put into container bags and compacted, and the container bags are placed on the seedbed in order after the containers are filled with the substrates; (3) forced seed germination and seeding are conducted, wherein land exposed to the sun is selected, a pit is dug in the land, a layer of river sand is laid at the bottom of the pit, forced seed germination is conducted by alternately stacking seed layers and wet sand layers on the river sand layer at intervals, each seed is sown in the corresponding container bag, and the seeds are covered with the substrates after being sown; (4) management is conducted after sowing; (5) grafting is conducted; (6) seedlings are moved out of the nursery field. Through the method, the survival rate is high, and the seedlings grow well.

Description

Technical field: [0001] The invention relates to a method for growing seedlings of Chinese torreya in containers. Background technique: [0002] Torreya torreya, also known as Chinese torreya, is an evergreen tree belonging to Taxaceae, Taxaceae, and Torreya genus. It is a native tree species in China. It mainly grows in relatively humid areas in southern China. It is born in warm and rainy yellow soil and red soil below 1400 meters above sea level. , Yellow brown soil area. Torreya can reach a height of 25m. It is a kind of Torreya tree. Its flowering period is in the middle and late April, and the fruit ripens in September of the next year. Its fruits grow on the branches in clusters. It is known as "three generations of fruit". On the tree, one-year fruit and two-year fruit often exist at the same time. The fruit of Chinese torreya is a nut with high nutritional value. It is olive-shaped and has a hard shell. There is a black fruit coat inside to wrap the light yellow f...

AI Technical Summary

Problems solved by technology

Torreya is easy to lose water when it is transplanted with bare roots for afforestation, resulting in horizontal dryness, seedling withering, poor growth, and reduced survival rate

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