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近年不少单位生产实践证明,电热线应用于蔬菜生产,操作简便,使用安全,经济效益高.1985年冬,我们于温室和拱棚内附设电热线生产韭黄和蒜黄,也取得了较好的经济效益,现介绍如下.一、温室附设电热线生产韭黄和蒜黄我们在不影响早春蔬菜育苗的前提下,利用塑膜温室附设电热线生产韭黄和蒜黄.首先建造电热床.在温室栽培床内挖长4.6米、宽2.7米、深15厘米的坑,坑底铺3厘米厚的过筛河沙,再在上面铺设DV系列电热线,坑前部布线16道(间距9厘米),中部16道(间距11厘米),后部9道(间距15厘米),功率密度为80瓦/米~2.铺完线后,
In recent years, many units of production practice has proved that the electric wire used in vegetable production, easy operation, safe use, high economic efficiency. In the winter of 1985, we have in the greenhouse and arch shed with electric hot wire production of chive and garlic yellow, but also made better Economic benefits, are described below. First, the production of greenhouses with electric heating production of chive and garlic yellow We do not affect the early spring vegetable nursery under the premise of the plastic film greenhouse attached to the production of electric chive and garlic yellow. First, the construction of electric bed cultivation in the greenhouse Dug bed 4.6 meters long, 2.7 meters wide, 15 cm deep pit, bottom of the shop 3 cm thick sieve sand, and then laying DV series of electric heating line, pit front wiring 16 (spacing 9 cm) Central 16 (11 cm pitch), the rear 9 (spacing 15 cm), the power density of 80 watts / m ~ 2. After the end of the line shop,