A special seedling-raising compound substrate for Psyrhatium huashanensis and its preparation method

Abstract

The invention belongs to the technical field of seedling raising of psathyrostachy huashanica Keng, and discloses a seedling-raising compound substrate special for psathyrostachy huashanica Keng and apreparation method thereof. The seedling-raising compound substrate special for psathyrostachy huashanica Keng is prepared from garden soil, peat and perlite according to the volume ratio of 1:2:1. The germination rate of seeds of psathyrostachy huashanica Keng is highest and reaches 83.33%, the plant height is 12.5 cm, the root length is 5.8 cm, the quality of seedlings of psathyrostachy huashanica Keng is improved, the root-top ratio is 0.20, and the root system activity is increased by 16.64%. The seedling roots are developed, the metabolic capacity is obvious, the absorption of nutrientsand the synthesis of biomass are facilitated, the life activities are indirectly promoted, and the growth demands of psathyrostachy huashanica Keng are met.

Description

technical field [0001] The invention belongs to the technical field of psagograss seedling cultivation, and in particular relates to a compound substrate specially used for psagograss seedling cultivation and a preparation method thereof. Background technique [0002] Psathyrostachy huashanica Keng is a perennial herbaceous plant of the genus Psathyrostachy huashanica Keng in the Poaceae family. Huashan new wheatgrass is only distributed in Huashanyu, Huangfuyu and Xianyu in the Huashan area of ​​my country. It mostly grows in valley rocks and roadsides with a certain humidity, especially in sunny places. Due to the close relative of Triticum genus and the excellent characteristics of drought resistance, cold resistance, and early maturity, the plant has been listed as a first-class national key protected plant and a wild relative of crops in urgent need of protection. . Different cultivation substrates have different water retention, fertilizer retention and air permeabil...

AI Technical Summary

Problems solved by technology

[0003] In summary, the existing problems in the prior art are: Psymphaeum chinensis is a national first-class endangered plant

The physical and chemical properties such as air permeability of single loam can not meet the growth requirements of Huashan Pseudowheatgrass

After the seeds of P. huashanensis are sown in a single loam soil, the germination rate and survival rate will be greatly reduced when encountering continuous rainy weather or excessive watering.

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