许多关于营养不足的研究是基于水培法种植植物，即在无土液体营养液中。
Much of the research on nutrient deficiencies is based on growing plants hydroponically, that is, in soilless liquid nutrient solutions.
为使自己的水培花园，营养不足，植物问题的计划，并增加一个花园，开始到结束，都包含在这宝贵的指南。
Plans for making your own hydroponic garden, nutrient deficiencies, plant problems, and growing a garden, beginning to end, are all included in this invaluable guide.
第六章植物叶面营养与叶面肥植物叶片吸收养分的途径与特点；叶面营养的优点与不足；叶面施肥应注意的事项。
Chapter6 foliar fertilizers. Uptake of nutrients by plant leaves; the characteristics of foliar fertilizer; advantage of foliar fertilizers and notices.
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