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苗木是植苗造林的物质基础,苗木的数量和质量,直接影响造林的进度与成败。正确评价苗圃工作,对制订合理的育苗措施,提高育苗效果,具有重大意义。长期以来,人们在苗木生产上,往往对苗圃工作缺乏全面而正确的分析和评价,因而使一些育苗工作者,或则只追求数量而忽视质量,或则为了达到一定的数量与质量,而消耗过多的物料,花费过高的工本,或延长了育苗年限,这是不符合经济原则的。育苗的任务在于用最短的时间,以最低的成本,培育出最大量的合乎造林要求的苗木。一个优良的苗圃应符合下列几项要求。
Seedlings are the material basis for plantation and afforestation. The quantity and quality of seedlings directly affect the progress and success of afforestation. Correct evaluation of nursery work, to develop a reasonable nursery measures to improve nursery effectiveness, of great significance. For a long time, people often lack the comprehensive and correct analysis and evaluation of seedling nursery production. As a result, some nursery workers either only pursue the quantity but neglect the quality or consume it in order to achieve certain quantity and quality Too much material, excessive cost of labor, or prolonged nursery life is not financially sound. The task of nursery is to nurture the maximum amount of seedlings that meet the requirements of afforestation in the shortest amount of time and at the lowest cost. A good nursery should meet the following requirements.