LED hydroponic cultivation "plastic" vegetables, nutrition experts say enough

In recent years, many companies have invested in LED technology hydroponic vegetable planting, the vegetable with artificial cultivation methods, known as "plastic vegetables" because of the appearance, clean and beautiful, the price per kilogram of up to 500 to 1200 yuan (NT, the same below), although the so-called health no poison, but also some scholars have questioned. From plant to plant vegetables grown without sunlight and soil nutrient, almost no nutrients, soil and vegetables than to save more is not easy.

Iron branded diamond lattice patterns, oil heat sizzles, but today the protagonist is not a steak. Taiwan beef industry Yang Yunfan: "the supplier provides us with LED hydroponic vegetables were previously used, imported, because Taiwan has not planted, now that Taiwan has this kind of hydroponic vegetables we hope, with the local agricultural products. "

In addition to when the steak side dishes, but also the protagonist of salad, flaunt can not be eaten raw, high-tech vegetables from such a place of origin. The staff armed, afraid of these delicate vegetables by any injury, LED species are mainly high-grade Hydroponic Lettuce, the retail price per kilogram of 500 to 1200 yuan, compared to the high quality soil vegetables expensive nearly ten times.

Do the actual experiment, the left is LED planting lettuce, the romaine lettuce, also placed at room temperature for 8 hours, leafy lettuce was drooping, curly volume reduced, not put durability.

National Bio Industry Engineering Professor Fang Wei: "in the hydroponic cultivation methods of vegetables, it never lack of panic, so stomatal less likely to develop the cuticle, opening and closing function is relatively weak, so people will say 'plant factory vegetables is not lasting. "

From the origin to the table that is fresh, but there is no sun to provide natural soil nutrients, the LED camp and not end hydroponic vegetable nutrition? Fang Wei: "(hydroponic liquid) there are 16 important elements, of which there are 10 kinds of trace elements in 6 kinds of major elements, we know these things on the cultivation of plants, like people eat vitamin. "

Dean of Taiwan Institute of science and technology Chen Shixiong,: when there is no ultraviolet radiation, the plants will not be formed on these two useful metabolites of the human body, so the production of things is definitely not enough nutrition. "

Soil easily and insect pests, plus heavy doubts, but the natural nutrient with up to 51 LED; hydroponic artificial care, no sunshine, so the fiber is fine, refreshing taste, but only 16 kinds of minerals in the irrigation liquid nutrient, natural farming also suffered questioned.

Chen Shixiong questioned: "this hydroponic vegetable hydroponic solution every two weeks to change once, the residual material will seriously pollute our water. "But Fang Wei also presented the advantages of hydroponic vegetables, said some people don't love soil vegetables, earthy odor (smell), but the food is not the taste of plant factory.

The hydroponic vegetables LED in Taiwan used to replace the imported vegetables, different from the traditional soil of the customer base, and the price has great differences, not who replaced problems, consumers pay or not pay is the key.

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