早在本世纪初,Brown(1906)用大麦作材料,证明天门冬酰胺、天门冬氨酸和谷氨酸处理的干重相当于硝酸钾。之后,不少学者用兰花胚进行了氨基酸营养作用的研究。然而,较精确的试验还是本世纪后半叶的事。三井进午、奥田东、森敏、高桥等人对植物氮素的吸收机制进行了大量的研究,证明植物不仅能吸收无机氮,而且可单独利用氨基酸氮。我国晚近也在进行这方面的研究,如中国科学 As early as the beginning of this century, Brown (1906) used barley as material, demonstrating that asparagine, aspartate and glutamic acid dry equivalent to potassium nitrate. Since then, many scholars have studied the role of amino acid nutrition with orchid embryos. However, the more accurate test is still the second half of this century. Mitsui noon, Okuda East, Sen Min, Takahashi et al on plant nitrogen absorption mechanism for a large number of studies have shown that plants can not only absorb inorganic nitrogen, but also the separate use of amino acid nitrogen. China is also conducting research in this area recently, such as China Science