Greenhouse seedling-raising method for diversiform-leaved poplar

Abstract

The invention provides a greenhouse seedling-raising method for a diversiform-leaved poplar and belongs to the technical field of artificial plant propagation. According to the greenhouse seedling-raising method for the diversiform-leaved poplar, a greenhouse is built on loam soil with the saline and alkali mass content of 0.3% or below and the soil grain diameter smaller than or equal to 2 mm, and ditching and ridging are carried out; seed trees with tree ages of 8-15 years are selected, and seeds to be sown are collected when seeds grow to be fleshy red; sowing is executed in May to June, flooding and watering are executed through ditches once after sowing, the water surfaces are controlled to be 2-3 cm lower than the tops of ridge surfaces, and seedlings grow out after sowing for 3-5 days; and then managements such as later-stage irrigation and ventilation are carried out. According to the greenhouse seedling-raising method for the diversiform-leaved poplar, the diversiform-leaved poplar seedlings are cultivated in the greenhouse, the irrigation frequency is reduced, the seedling emergence amount per mu reaches 4-50,000 plants, the seedlings emerge orderly, and the storage rateafter overwintering reaches 90% or above. The method overcomes the environmental restrictions of windiness, high temperature and low humidity in arid and extremely arid areas, reduces the seedling raising cost while improving the survival rate of the diversiform-leaved poplar seedlings, and has the characteristics of being simple, easy tot operate and easy to popularize.

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