A kind of seedling raising method of Populus euphratica in greenhouse

Abstract

The invention provides a method for raising seedlings of Populus euphratica in a greenhouse and belongs to the technical field of plant artificial propagation. The method for raising seedlings in the Populus euphratica greenhouse provided by the invention selects a loamy soil with a saline-alkali mass content≤0.3% and a soil particle diameter≤2mm to build a greenhouse, ditches and ridges; selects a mother tree with a tree age of 8 to 15 years, and waits for the seeds to grow to flesh red. Collect the seeds to be sown; sow in May to June, flood the ditch with water once after sowing, control the water surface to be 2 to 3 cm lower than the top of the ridge, and grow seedlings 3 to 5 days after sowing; then carry out later irrigation, Ventilation and other management. The method provided by the invention utilizes the greenhouse to raise the populus euphratica seedlings, reduces the number of irrigations, has 40,000 to 50,000 seedlings per mu and the seedlings are neat, and the preservation rate after overwintering is over 90%. The method provided by the invention overcomes the environmental constraints of windy, high temperature and low humidity in arid and extremely arid regions, improves the survival rate of Populus euphratica seedlings and reduces the cost of seedling cultivation, and is simple and easy to popularize and use.

Description

technical field [0001] The invention belongs to the technical field of plant artificial propagation, and in particular relates to a method for raising seedlings of Populus euphratica in a greenhouse. Background technique [0002] Populus euphratica belongs to Salicaceae, Populus genus. It is a medium-sized deciduous natural tree with a diameter of up to 1.5 meters. Because of the different leaf shapes in different growth periods, it is also called heterophyll poplar. It has the characteristics of drought and waterlogging resistance, heat and cold resistance, wind and sand resistance, salt and alkali resistance, and barrenness resistance. It is the most primitive and oldest tree species in the genus Populus, and it is the first batch of 388 rare and endangered plants in China. Dangerous species". Populus euphratica is mostly distributed on the banks of rivers in desert areas, and can form forests in arid and semi-arid areas; globally, Populus euphratica is distributed on riv...

AI Technical Summary

Problems solved by technology

At present, there are field seedling raising technologies for Populus euphratica (CN201510464788.6), semi-shading seedling raising (CN201510768095.6), cuttings (CN201510070225.9), etc., and there are many related researches and technical patents on Populus euphratica grafting; The requirements for water conditions are high, and the areas where Populus euphratica is used more are mostly distributed in arid and extremely arid areas. The water conditions are poor, the wind and sand are strong, and affected by soil quality and high temperature, the infiltration and evaporation are extremely large, and the water consumption during the entire seedling cultivation process Large, frequent irrigation increases the cost of tending management, wind and sand reduces the survival rate, and there are problems in popularization and application