高光效膜对人参生态的影响

1 引言 人参属五加科多年生草本药用植物,耐阴、喜生针阔混交林或杂木下,在强光照射下会发生日灼病,为避免这种伤害,长期以来,人们模拟野生参的生长环境,创造了全阴棚人参栽培法,挡住了中午强光的直射,但影响了透光量,从而影响到产量。近年来,随着人参栽培技术的进步,改全阴棚为透光棚,但并未根本解决问题。本文试图通过对人参生态的研究,进行人参栽培技术改革,从而提高了人参的产量与质量。

Effect of high light-efficiency film on ginseng ecology.

Ecological characters of ginseng are investigated with reflection spectrum technique. The results show that there are two strong absorption bands for ginseng leaf at 440nm and 680nm, and the ultraviolet light below 380nm is reflected weakly, so the scalding of ginseng is occured Under strong sunlight. A fluorescence reagent which can convert ultraviolet light into red light is mixed into polythene films to simulate the absorption spectra of ginseng leaf, and the radiation spectra of this new film are similar to the latter. After using this new film in ginseng culture, the transmissive light quality of ginseng awning is improved and the photosynthesis of ginseng is promoted. The yield of ginseng and its quality are also increased.