Green roof terrace new choice - Ornamental Vegetables

Green roof terrace new choice - Ornamental vegetable ornamental vegetables refers to both the food value have ornamental value (or the evolution of the vegetables come only ornamental value) is a biennial or perennial, suitable for indoor and outdoor layout, landscaping and enrich people's lives in general plant [1]. In the 1930s, Japan, Europe and other countries and regions began to combine sightseeing agriculture research and development ornamental vegetables [2], then watch the vegetables are widely used. In Britain, people will watch applied to the family of green vegetables, not only beautify the environment, but also to enjoy fresh, green vegetables. In France, people are not only building in the city to establish a "roof farm", still own balcony railing and even on the windows, planted from a variety of fruits and vegetables, such as strawberries, tomatoes, carrots, cucumbers, etc. [3]. In Japan, people used garden green kale, rich winter garden landscape. In Denmark and Poland, people watch different types of new tomato varieties for the garden greening and beautification. In the Netherlands, people through design, different colors, different types of ornamental fruits and vegetables into very interesting floats, showcase new varieties and gardening culture and philosophy demonstrated [2]. In the 1990s, China's mainland has begun to develop tourism agriculture in Shanghai, Beijing and other places, enjoy vegetables more people are concerned. Different scholars have classified ornamental vegetables, respect screening germplasm, garden landscaping applications and configuration, used in urban agriculture, special cultivation techniques were discussed research, promote the development and utilization of ornamental vegetables.黄丹枫 et al. (1998) through the research, selection, hybrid breed on agricultural-1 and -2 lettuce farmers, agricultural Zhen on the 1st loosestrife, agriculture and agro-red on the 1st the 1st ornamental pink tomato, bell peppers and the farmers on farming red peppers and other ornamental vegetables [4]. Liuren Ying (2007) by the survey, selected ornamental vegetable species suitable Shandong area of ??81 species of vegetables in the garden and watch the value and application forms were discussed [1]. Yang Xinhua (2004) pointed out the excellent ornamental vegetable species including pumpkins, gourds, tomatoes, peppers, eggplant, kale, ornamental vegetables have great value in urban agriculture garden, living room and garden [5]. 2. ornamental vegetables in urban rooftop terrace greening Today, China attaches great importance to the city residents to decorate the roof terrace with green plants create a green and healthy living environment. In the market for people to choose the green plants, mostly with only some of the concept of ornamental flowers, ornamental woody herb. Ornamental vegetables with colorful, unique flavor known, both to watch, but also to eat, a roof terrace will be greening and beautification of the new options. The ornamental vegetables planted on the roof terrace of the city, not only for people to bring beauty, as well as fresh, clean vegetables. This makes environmental greening and vegetable supply fully integrated, making landscaping features and production plants fully functional. Such as ornamental peppers, is very rich in variety, fruit with green - red, there are milky white - yellow - orange - red, changes in colorful, fruit period of up to five months, also can be used as seasoning pepper fruit picking; collapsed to cabbage, leaves dark green, falling to grow, plant rosette shape, high nutritional value, known as "vitamin" food, and easy cultivation. According to reports, some foreign city residents to eat vegetables by two or three percent self-sufficient rooftop terrace, this subsistence household vegetable gardening has become one of supply and disaster protection measures light urban vegetable [6.7]. In addition, ornamental vegetables planted rooftop terrace in the city, so that people experience in their leisure time gardening activities to enrich the cultural life of leisure, but also to accept the science education of children involved in the process. 2.1 ornamental vegetable species in greening the roof terrace to watch the different parts according to the rooftop terrace to watch vegetables divided into the following five categories [1.5]: 2.1.1 Concept fleshy root plant root class specific shape or color is gorgeous, with better viewing. Such as beet root, cherry radish. 2.1.2 Concept and tubers Stem specific shape or color is gorgeous, with better viewing. Such as potatoes, wild rice, asparagus, bamboo shoots, bulbs fennel, kohlrabi, onion and so on. 2.1.3 foliage plant leaves specific shape or color is gorgeous, with better viewing. Such as beet leaves, parsley, lettuce leaves, mosaic lettuce, kale, cabbage collapse to, Chrysanthemum, purple cabbage, savoy cabbage, Brussels sprouts, endive, lettuce, seaweed, moss, mosaic endive, spinach Colorful , basil and mint. 2.1.4 Concept of flowers plants flower, inflorescence specific shape or color is gorgeous, with better viewing, or groups of flowering ornamental better. Such as lily, broccoli, sweet peas, runner beans, lentils, purple cauliflower, lily, pagoda cauliflower, lotus root, okra, chives, ginseng vegetables, onion and so on. 2.1.5 Concept of fruit plant fruit specific shape or color is gorgeous, with better viewing. Such as ornamental peppers, ornamental tomato, ornamental eggplant, ornamental pumpkins, ornamental gourd, snake gourd, ornamental cucumbers, purple pod beans, ridge gourd and so on. 2.2 ornamental green vegetables on the rooftop terrace of cultivation 2.2.1 Soil cultivation is a natural soil cultivation matrix; cultivation containers used pots, earthen pot, ceramic pots, plastic baskets, barrels, brick planting ducts. Soil drawn easily, but quality is more important, often with soil pests. When soil cultivation, new soil workload, the building will have some bearing problem, easy to breed a variety of soil pests, pollution of the environment. 2.2.2 solid substrate cultivation common solid matrix have ceramic, perlite, peat, vermiculite, bark, sawdust, rice husk, bagasse and other mushroom or two or more kinds mixed matrix composite matrix; cultivation containers used plastic flower pots, earthen pot, ceramic pots, plastic baskets, plastic bags, barrels and the like. Solid matrix light weight, health, loose, breathable, water and fertilizer. Many countries often applied to the solid substrate cultivation facility in agriculture, production of clean, high-quality, high-grade, fresh vegetable products. 2.2.3 hydroponics without soil or solid matrix, plant roots directly in contact with the nutrient solution, nutrient solution formulation will vary depending on the type and stage of plant growth. Cultivation of container is often made of plastic boxes, PVC pipes and other facilities made of various cultivated [8]. Hydroponic fertilizer-saving, clean, sanitary, easy to manage, etc., and the use of agricultural high-tech and advanced cultivation facilities, three-dimensional space can enjoy vegetable cultivation. 3. ornamental vegetables in rooftop terrace Greening Application Problems and Prospects Since the roof terrace and exposed environmental conditions vary from light, temperature, air, etc., in the shelter of the building, the roof terrace of different environmental conditions is the difference bigger. Ornamental vegetable varieties choices, they can not simply refer to the local open field cultivation of vegetable varieties, it must be combined with its own roof terrace of environmental conditions, choose ornamental vegetable varieties. Such as tomatoes on the roof and watch the lighting conditions were better balcony can grow normally flowering and fruiting, but flowering and fruiting in poor lighting conditions on the balcony would be affected. Therefore, the combination roof terrace space environmental conditions, environmental adaptability of ornamental vegetable research, help advance ornamental vegetables used in the roof terrace greening. Watch more vegetables is an annual herb, often only a few months of birth, viewing period shorter than the perennial ornamental plants. After the plant growth stage, if not replant, it will affect a rooftop terrace greening, beautifying effect. Screening through the roof terrace to watch varieties of vegetables and stubble mode, ornamental vegetables rich in space and time of mix and match, not only can extend the roof terrace of ornamental ornamental vegetables, but also improve the roof terrace to watch production of vegetables. In addition, new varieties of ornamental vegetables excavations, the introduction of screening and breeding are also an important direction for future research. Jinan Huachen agronomic Agricultural Science and Technology Co., Ltd. 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