Cup salad vegetables hydroponics , hydroponic vegetables that pick instant wall , hydroponic vegetable buffet ...... Hong Kong has recently gripped by a wave hydroponic vegetables boom , it became a new gimmick department stores and restaurants , what exactly these vegetables beauty ? Agriculture , Fisheries and Conservation Department director Chen Zhaolin , said, " hydroponic " growing methods (Hydroponic), that is, the water simply say on behalf of mud, carrying nutrients from the water , so plants in soilless cultivation system growth . Initially based on volcanic rock or soil planting organization , germination , then moves to the sink . Process will be added as needed as fertilizer nutrient solution to ensure that plants get enough nutrition, healthy growth . Chen Zhaolin that hydroponic vegetables has two characteristics , he said: "The biggest selling point is clean students, because it is not in mud species difficult to breed insects, not afraid of failing to wash while eating residues such as mud or mosquitoes. Another due to in indoor cultivation , full control growth environment , such as plant lights instead of sunlight for photosynthesis to help vegetables , and circulating nutrient solution instead of using fertilizers , pesticides beefing up is necessary in order to grow , you can reduce the use of chemical fertilizers , vegetables and natural ingredients to ensure that , not afraid to be eating a toxic or chemical substances . " he said that since the establishment of industrial buildings in " full environmental control hydroponics research and development center " hydroponic cultivation of vegetables , has never found pests. He even assured the public to buy cup after hydroponic vegetables that can be ready to open , no cleaning . For this newly introduced method of growing vegetables , the Hong Kong Institute of Vocational Education ( Chai Wan ) Department of Applied Science for Food and Nutritional Sciences Programme Director and Senior Lecturer Dr. Fang Liying that hydroponic vegetables like wet cotton childhood students learned how to plant sprouts like the present put the seeds placed in nutrient solution and allowed to absorb water sprout growth . She agreed that this is indeed as a way to avoid pesticide residues , so clean and raw vegetables , and to ensure that production from climate or environmental impact . Nutrition is no different with the ordinary vegetables generally , and guaranteed to be free of pesticide residues , it can be safe to eat . But she stressed that due to water less nutrient rich soil , so as to restrict the planting of vegetable species , which was the only drawback hydroponics , " water on behalf of mud nutrients in vegetables is not much affected , however, because moisture nutrition relatively weak , so only temporarily cut kind of salad vegetables such succulent dishes than species, such as arugula , arugula and red mustard , etc. root vegetables still have solid roots in the soil before being allowed to grow roots result , not suitable hydroponic cultivation . "
Posted on: Fri, 06 Sep 2013 04:09:03 +0000
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