Seedling raising bed and seedling raising method for electric lighting greenhouse of sweet potatoes

Abstract

The invention discloses a seedling raising bed for an electric lighting greenhouse of sweet potatoes. The seedling raising bed comprises a groove ridge built in the greenhouse, and an electric heating layer, a sandy soil isolating layer, a potato seed layer and a sandy soil covering layer that are sequentially laid in the groove ridge from the bottom up; and the electric heating layer is connected with an external power supply. The invention further discloses a seedling raising method for the electric lighting greenhouse of the sweet potatoes. The seedling bed is uniform in temperature; potato seedlings are healthy; controlling of the black rot of the sweet potatoes and raising of healthy and sound seedlings are import links for yield increase in the production; after the electric heating layer is powered on, the temperature of the whole bed is uniform, the temperature difference is very small, the black rot is controlled under the high temperature of 35 DEG C, the raised seedlings are healthy and sound, and the emerged seedlings are tidy and large in quantity; the temperature rise is reliable; the management is convenient; in the seedling bed with the electric heating layer, the temperature can be decreased by 1-2 DEG C per hour under good heat preservation conditions, and the temperature rise is faster compared with a heated brick bed; a temperature controller is adopted to automatically control the bed temperature, thereby being convenient, reliable, power-saving and labor-saving; and the cost is lowered.

Description

technical field [0001] The invention relates to seedling raising technology, in particular to a sweet potato electric heating greenhouse seedling bed and seedling raising method. Background technique [0002] Sweet potato seedling raising is the primary link in sweet potato production, and root seedling raising is generally used for asexual reproduction. The existing seedling raising methods include: raising seedlings in improved Huilong fire pit, raising seedlings in hotbeds covered with plastic films, seedlings raised in cold beds covered with plastic films, etc. Improve the seedling raising technology of Huilong fire pit seedling and brewing hotbed covered with plastic film seedling. The method of controlling the temperature of the seedbed is more traditional, the temperature is not easy to control, and the ability of the operator is higher, and the operation is more time-consuming and laborious; while the cold bed Covering plastic film seedling raising technology, only ...

AI Technical Summary

Problems solved by technology

Improve the seedling raising technology of Huilong fire pit seedling and brewing hotbed covered with plastic film seedling. The method of controlling the temperature of the seedbed is more traditional, the temperature is not easy to control, and the ability of the operator is higher, and the operation is more time-consuming and laborious; while the cold bed Covering plastic film seedling raising technology, only by increasing the temperature of plastic film to advance the seedling period, it is highly dependent on the natural weather environment, and can not effectively improve the yield and quality of seedlings

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