山西农业大学学报（自然科学版）2025，Vol.45Issue(2)：80-89,10.DOI:10.13842/j.cnki.issn1671-8151.202408008
蚯蚓粪与椰糠混合基质对黄瓜育苗性能的评价
Evaluation of cucumber seedling performance in mixed substrates of vermicompost and coconut coir
摘要
Abstract
[Objective]A high-quality seedling substrate is essential for seedling quality and crop yield.Coconut coir is widely used in seedling substrate production due to its excellent physical properties.However,coconut coir alone often lacks sufficient nutrients to meet the growth requirements of crop seedlings,necessitating the supplementation of external nutrient sources.Vermicompost is rich in nutrients and possesses a well-developed capillary structures,along with good aeration and water reten-tion properties.This study aimed to enhance the application of coconut coir in seedling substrates by investigating the effects of a mixed substrate of vermicompost and coir on cucumber seedling growth.[Methods]Vermicompost and coconut coir were mixed at different volume ratios to prepare seedling substrates.Six treatments were designed:100%coir(CK),20%vermi-compost+80%coir(T1),40%vermicompost+60%coir(T2),60%vermicompost+40%coir(T3),80%vermicom-post+20%coir(T4),and 100%vermicompost(T5).The effects of each treatment on seed germination and seedling growth were analyzed,and the physicochemical properties of the substrates were evaluated to determine the optimal ratio of ver-micompost and coconut coir.[Results]As the volume of vermicompost increased,the root length and germination index of seeds in T1～T5 treatments were significantly lower than those in CK.Among the vermicompost-added treatments,T3 showed the highest root length and germination index,while T1 showed the lowest.The bulk density of the substrate increased significantly with the proportion of vermicompost ratios,with T5 showing a 4.5-fold increase compared to CK.Meanwhile,the total porosity and aeration porosity of T1～T5 decreased significantly relative to CK,while the water-holding porosity in-creased with higher vermicompost ratios.The addition of vermicompost significantly increased the content of available nutrients in the substrate.The available phosphorus and potassium levels in T5 were significantly higher than in CK,while the organic matter content decreased with increasing vermicompost proportions.The nitrogen,phosphorus,and potassium uptake of cu-cumber seedlings increased with the proportion of vermicompost,with T5 showing the highest nutrient uptake.When the ver-micompost volume ratio reached 60%or higher,seedling stem diameter,leaf area,chlorophyll content,and above-ground fresh weight of cucumber seedlings remained at relatively high levels.[Conclusion]The application of vermicompost as a nutri-ent supplement in coconut coir substrates significantly improved seedling performance.A vermicompost volume ratio of 40%～80%achieved favorable,growth effects for cucumber seedlings,with the T4 treatment(80%vermicompost)demonstrating the best overall promotion effects.关键词
蚯蚓粪/椰糠/黄瓜/种子萌发/幼苗生长Key words
Vermicompost/Coconut coir/Cucumber/Seed germination/Seedling growth分类
植物保护学引用本文复制引用
吴奕琪,张韦柏,张琬雪,刘铮,池华聚,杨文佳,刘欣宇..蚯蚓粪与椰糠混合基质对黄瓜育苗性能的评价[J].山西农业大学学报（自然科学版）,2025,45(2):80-89,10.基金项目
国家自然科学基金面上项目(32071552) （32071552）
住房和城乡建设部科技示范项目(S20220395) （S20220395）
江苏省碳达峰碳中和科技创新专项(BM2022006) （BM2022006）
新疆维吾尔自治区高校科研基本业务费科研项目(XJEDU2024J135) （XJEDU2024J135）
