自新绝对
幼苗
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Horticulture is defined as not suitable for the growth and development of horticultural crops in cold or hot season, the use of heat, cold or cool water-resistant facilities, to artificially create an appropriate growth and development of horticultural crops microclimate environment in which the production of horticultural crops is not or less by natural the impact of the season. Season because of their production is often the natural environment in the open field under difficult production season, it is also known as "off-season cultivation," "Cultivation." Wind barrier阳畦, hotbed, plastic sheds and greenhouses for the open field and protect a variety of vegetable seedlings to nurture or protect cold winter vegetable seedlings.
1年前
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