The latest course on planting techniques and methods of Torreya grandis

Torreya grandis is an excellent variety of Torreya grandis, is a rare dry fruit species of Chinese specialty, not only high cultivation value, but also good ecological landscape benefits, Hangzhou City has been Torreya grandis as a dry fruit development as a characteristic advantage of industrial belt. Torreya grandis planting base using more than 2+3 grafting seedlings afforestation, generally the third year can bear fruit, the sixth year can produce dry seeds 1~2 kg, adult trees produce dry seeds about 10 kg, yield per mu can reach more than ten thousand yuan, economic benefits are very considerable. The development of Torreya grandis industry is one of the important ways for mountain farmers to get rid of poverty and become rich.

forestland selection

Torreya grandis ideal afforestation requirements cool, air humidity, light is not too strong, and good drainage of low hills. Acid to neutral sandy loam, purple soil, lime soil and other soils are suitable for planting Torreya grandis, pH value less than 5 soil is not suitable for the development of Torreya grandis, soil with deep fertile, good permeability, low groundwater level is the most suitable. Torreya grandis requires sufficient sunlight after the results, so afforestation above 400 meters above sea level should be selected in sunny slope and semi-sunny slope.

forest land preparation

According to the characteristics of Torreya grandis in need of shade and the need of soil and water conservation, the forest vegetation is preserved to create lateral shade, which is beneficial to the survival and growth of afforestation. Generally, the slope below 15℃ can be fully cultivated, and interplanting of forest and grain is advocated; the slope at 15~30℃ shall be prepared in strips, and terrace vegetation shall be retained, and interplanting of forest and grain shall be allowed; the slope above 30℃ shall be prepared in blocks with fish scale pits, and large holes (80 cm in diameter and more than 50 cm in depth) shall be dug, and vegetation around holes shall be retained.

interplanting under forest

Torreya grandis grows slowly and needs shade in its infancy. It can adopt the three-dimensional management mode of interplanting Torreya grandis under the forest. It can choose suitable deciduous arbor stand and other economic forests to be transformed to interplant Torreya grandis. It is better to pay attention to the canopy density not to be too high and the transmittance above 40%.