中文摘要：

以培育富硒山野菜为目标,在森林暗棕壤上进行了5种山野菜施硒试验.硒肥种类为亚硒酸钠,施硒量分别是0.066、0.222、0.666、2.222、6.666 g/m^2.结果表明,暗棕壤对外源亚硒酸钠态硒具有较强的吸收和保持能力,在试验剂量范围内,施入的硒经过1个生长季后仍有70%～97%保留在原施硒土层中.在土壤施硒条件下,典型暗棕壤上生长的多年生山野菜婆婆丁（Taraxacum mongolicum）、小根蒜（Alliummacrostemon）、广东菜（Matteuccia struthiopterls Todaro）、猴腿蕨（Athyrium multidentatum）、小叶芹（Aegopodium alpestre Ledeb）都能高量富集硒,含硒量可达对照的10～100倍以上,但不同植物富集硒的能力存在差异.从硒在土壤中的存留率、植物积累硒的数量、模式以及施用成本等方面综合考虑,大部分山野菜适宜的施硒量应在2.222 g/m^2以下,广东菜适宜施硒量应在0.666 g/m^2以下.通过试验得出,暗棕壤施用硒微肥是栽培富硒山野菜的可行途径.

英文摘要：

A series of selenium application experiments were conducted to cultivate selenium-enriched forest vegetables in the mountainous regions of northeast China. Selenium fertilizer （ Na2SeO3 ） was added to the top 0 - 15 cm soil layer with a dosage gradient of 0.066, 0. 222, 0.666, 2. 222 and 6. 666 g/m^2. Results show that typical dark brown forest soil has a high capacity of reserving selenium in the chemical form of Na2SeO3, judging from the fact that 70% -97% of the applied selenium was still retained in the top 15 cm soil layer 5 months after application. All the five experimental wild-vegetable plants, Matteuccia smtthiopterls , Athyrium multidentatum, Aegopodium alpestre, Taraxacum mongolicum, Allium macrostemon, are capable of accumulating selenium excessively under the condition of strengthened soil selenium supply, with plant selenium concentrations 10 - 100 times higher than that of the control （CK）. The reasonable application rate of selenium is less than 2. 222 g/m^2 for most plants, and less than 0.666 g/m^2 for Matteuccia struthiopterls. It is concluded that exogenous selenium application to typical dark brown forest soil is an effective way to cultivate selenium-enriched forest vegetables.