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雨豆树的苗木种植在容器袋的沙和牛粪的混合质上(3:1)。在播种前后一周施用不同浓度(0.1%, 0.5%, 1%, 2%, 5% and 10%)的有效微生物群(Effective Microorganisms )液。测定发芽和苗木自然生长参数(包括:茎根长度,活力指数,直径,叶子数量,茎根的鲜重和干重,总的生物量增长量)。估计生化参数如叶绿素 a, 叶绿素 b,类胡罗卜素,并观测了受有效微生物群影响的生节情况。与对照相比, 经不同浓度有效微生物群液处理的雨豆树,发芽率和苗木自然生长参数都明显增加。施用 2%有效微生物群液的苗木生长率最大,其次是施用 1%有效微生物群液的苗木。1%有效微生物群液的生节率最高,并随浓度的增加而下降。尽管经有效微生物群液处理的苗木叶中色素比对照高,但叶绿素 a, 叶绿素 b,类胡罗卜素并不明显高于对照。随着有效微生物群液浓度的增加,苗木生长表现出不同的效果,大部分参数在中等浓度范围最高。研究表明,有效微生物群技术有助与提高苗圃中苗木的生长,有益微生物与容器袋土壤相结合有助于改善退化的或贫瘠的土壤,有利于初移植苗木的营养和水分吸收。表 4 参 17。
Rain tree seedlings planted in the container bag of sand and cow dung mixed quality (3: 1). Effective Microorganisms in different concentrations (0.1%, 0.5%, 1%, 2%, 5% and 10%) were applied one week before and after sowing. Germination and natural growth parameters of seedlings (including stem length, vigor index, diameter, number of leaves, fresh and dry weight of stem roots, total biomass growth) were determined. Biochemical parameters such as chlorophyll a, chlorophyll b, and carotenoid were estimated, and the status of live birth affected by effective microbes was observed. Compared with the control, the germination rate and the natural growth parameters of the seedlings increased significantly with rainfly trees treated with different concentrations of effective microorganisms. The growth rate of seedlings with 2% effective microbial population was the highest, followed by the seedlings with 1% effective microbial population. The 1% effective microbial flora had the highest birth rate and decreased with increasing concentration. Chlorophyll a, chlorophyll b, and carotenoids were not significantly higher than those of the control, although seedling leaves treated with effective microflora had higher pigment content than the control. With the increase of the concentration of effective microbial population, the growth of seedlings showed different effects, most of the parameters in the highest concentration range. Studies have shown that effective microbiota technology can help to improve seedling growth in nursery. Combining beneficial microorganisms with soil in container pockets can help to improve degraded or infertile soils, which is good for the nutrition and moisture absorption of newly planted seedlings. Table 4 Reference 17.