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水稻旱育秧和旱育抛秧是我国“九五”农业十大推广技术之一,但在生产上存在三大突出问题,严重影响了旱育秧和旱育秧抛秧技术的发挥及其推广速度:一是好气性恶苗病严重;二是秧苗生理转换期易发生生理性和病理性死苗;三是旱育秧苗体轻、根盘小,根部难以带土,抛植后立苗难,植...
Rice dry cultivation and dry cultivation throwing throwing is one of the ten popularization technologies of agriculture in the Ninth Five-Year Plan of China, but there are three prominent problems in the production, which seriously affect the play and promotion speed of throwing seedling in dry-raising seedling and dry seedling planting: First, aerobic sexually transmitted disease is serious; Second, the physiological transformation of seedlings susceptible to physiological and pathological dead seedlings; Third, dry nursery seedlings light, small root, the root is difficult to bring soil, throwing seedlings difficult to plant ...