Torreya grandis is the seed of Phaseolaceae, also known as Yushan Fruit or Wild Pole. It is similar in size to jujube, with a hard seed coat and two sharp points, and is usually used for processing into nuts.

Torreya grandis is an evergreen tree of Torreya of Theaceae. Torreya grandis originated in southern China and mainly distributed in Fujian, Jiangxi, Guangdong, Guangxi, Hunan, Hubei, Zhejiang, Anhui and other regions. Torreya grandis is 20 meters high, with straight trunk, grayish brown bark and conical crown.

The fruit of torreya grandis is oval or ovoid drupe, which contains a seed. The fruit ripens from September to165438+1October every year. The fruit is purple-black, the shell is thin and hard, and the nut is yellow and white. With rich aroma and smooth taste, it is a precious food and medicine.

Torreya grandis is a unique tree species in China and a rare economic tree species in the world. It mainly grows in humid areas in southern China, and is born in warm and rainy yellow soil and red soil below 1400 meters above sea level. Like light and shade, like warm and humid climate and deep and fertile acidic soil, not resistant to stagnant water, drought, accumulation, cold.

Field management of torreya grandis

1, pruning: in order to achieve high and stable yield of torreya grandis, it is necessary to control tree height and crown width. The crown height is controlled at 4-5m, and the crown width is kept dry and round. After the crown is formed, it should be trimmed regularly every year.

2. Loosening soil and weeding: In winter from 65438+February to 65438+1October, combined with fertilization, the soil around torreya grandis was deeply ploughed once, fallen leaves were buried in the soil, and crops such as beans and grasses were interplanted in the forest land, which improved the soil ventilation conditions and increased the income. Shallow ploughing once in July and August, cutting off weeds and twigs, covering torreya grandis rhizosphere, cooling and moisturizing, and harvesting.

3, pest control: pay attention to the prevention and control of termites, torreya grandis, gall mites, rust snails and other hazards to torreya grandis, spraying chemicals in advance for prevention and control.

Reference to the above content: Baidu Encyclopedia-Torreya grandis