Method for cultivating vallisneria natans seedlings

Abstract

The invention discloses a method for cultivating vallisneria natans seedlings. The method includes steps of digging a seedling bed with the depth ranging from 8 centimeters to 10 centimeters, smashing soil blocks, adding from 0.3 to 0.5 kilogram of humus soil to each square meter of seeding bed, uniformly stirring the humus soil in the seedling bed, adding water into a seedling culture field and adding bleaching powder into the water for disinfection; selecting vallisneria natans with plant heights ranging from 15 centimeters to 20 centimeters as annual seedlings, and placing and soaking the annual seedlings in a disinfection tank for 6 to 10 minutes; transplanting the annual seedlings on the seedling bed, dividing each three to five annual seedlings as a stump, spraying combination hormone liquid on the seedling bed and covering a thin film on the annular seedlings; controlling the temperature of the water of the seedling culture field to range from 15 DEG C to 30 DEG C; and removing the thin film covering the vallisneria natans seedlings, filling water into the seedling bed, keeping the seedlings in the seedling bed for 9 to 11 days and shifting the seedlings out of the seedling culture field to obtain the vallisneria natans seedlings. After the annual seedlings are transplanted in the seedling culture field for 48 to 52 days, plant heights of new vallisneria natans seedlings grown on underground stems can reach 10 centimeters. The method has the advantages that seasonal limitation on plantation of the vallisneria natans can be broken through, and shortcomings of high cost, long period, high operational requirements and the like of a tissue culture technology for the vallisneria natans can be overcome.

Description

technical field [0001] The embodiment of the present invention relates to a method for cultivating plants, in particular to a method for cultivating bitter grass seedlings. Background technique [0002] Vallisneria natans (Vallisneria natans) is a submerged herbaceous plant of the genus Vallisneria genus in the family Hydrochariaceae. There are currently 5 species found, including Vallisneria natans, Vallisneria natans, Vallisneria natans, and Vallisneria natans. Vallisneria natans is widely distributed in my country. It can survive in many types of water bodies and has a wide range of tolerance to water environments. Bittergrass is often used as a bait resource for artificial breeding of fish, shrimp and crabs. It is also commonly used for aquarium viewing. As a higher submerged plant, Bittergrass is one of the primary producers in the aquatic ecosystem. It has water purification and The ability to slow down the release of nutrient salts has an allelopathic effect on algae ...

AI Technical Summary

Problems solved by technology

[0005] At present, the materials of bitter grass are obtained directly from rivers, lakes, reservoirs, and breeding ponds, or indirectly through winter buds, seeds, and tissue culture. At present, wild resources have been depleted in large quantities; however, the tissue culture technology of Erythrina fragrans has limitations such as high cost, long cycle, and high operation requirements.

With the gradual maturity of aquatic ecological technology, the rapid increase of successful engineering cases, and the increasing demand for technology promotion, the demand for bitter grass will show a blowout growth. The current availability of bitter grass resources will not be able to meet future engineering applications.