椰角甲、角角甲(鞘翅目:金龟甲科)、幼虫草作植物肥料。

IF 3.1 3区 生物学 Q1 Agricultural and Biological Sciences
Chiao-Jung Han, Zeng-Yei Hseu, Po-Hui Wu, Louis Grillet, Chun-Han Ko, Matan Shelomi
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引用次数: 0

摘要

背景:作为食物或饲料的甲虫饲养是一个日益增长的农业领域,产生了相当大的废物。这种草是一种假定的土壤改良剂,据说直接用作肥料。为了确定甲虫废物是否可以不经预处理用作土壤改良剂,对椰角角甲虫(Oryctes rhinoceros,鞘翅目:金龟甲科)的废物进行了一系列化学、物理、微生物和植物生长试验。测定了甲虫日粮和草地氮磷钾水平、碳氮比和粒径。微生物群通过元条形码识别,并进行功能谱分析,以确定与木材消化或植物生长相关的途径。将拟南芥(芸苔科:芸苔科)和草叶分别以0、20和40%的浓度加入盆栽土壤中进行栽培试验,然后测量土壤、草叶和植物物质的元素浓度。结果:主要通过微生物解聚剂在肠道内消化植物多糖,产生粒径均匀的残渣,NPK为1.8-0.13-1.2,可直接用作成熟肥料,无需预堆肥,甚至可作为生长基质。与营养丰富的盆栽土壤相比,土壤中草含量较高的植物生长得更快、更大。藜麦含有丰富的有用元素和有益的几丁质分解微生物。结论:与富土相比,甲虫草可直接作为土壤改良剂使用,无需堆肥或预处理,对植物生长具有积极的促进作用。以这种方式对杂草进行估价可以为甲虫养殖户带来收入,并将养分循环到土壤中,作为循环农业的一部分。
本文章由计算机程序翻译,如有差异,请以英文原文为准。
Coconut rhinoceros beetle, Oryctes rhinoceros (Coleoptera: Scarabaeidae), larval frass as plant fertilizer.

Background: Beetle rearing for food or feed is a growing area of agriculture that produces considerable wastes. This frass is a putative soil amendment anecdotally applied directly as fertilizer. To determine if beetle waste can be used as a soil amendment without pre-treatment, a series of chemical, physical, microbiological, and plant-growth assays were performed on waste from the coconut rhinoceros beetle, Oryctes rhinoceros (Coleoptera: Scarabaeidae), fed cocopeat. Beetle diet and frass NPK levels, C:N ratio, and particle size were measured. Microbiota was identified with metabarcoding, and functional profile analysis done to identify pathways associated with wood digestion or plant growth. Cultivation tests were done with Arabidopsis thaliana (Brassicales: Brassicaceae) and frass incorporation into potting soil at 0, 20, or 40%, followed by elemental concentration measurement of the soil, frass, and plant matter.

Results: Digestion of plant polysaccharides in the gut, primarily by microbial depolymerizers, produces frass of uniform particle size and NPK 1.8-0.13-1.2 that can be used directly as a mature fertilizer without pre-composting, or even as a growth substrate. Plants with higher proportions of frass in the soil grew significantly faster and larger compared to a nutrient-rich potting soil. Frass is high in useful elements and has beneficial chitinolytic microbes.

Conclusions: Beetle frass can thus be used directly as a soil amendment without composting or pretreatment, with positive effects on plant growth even compared to rich soils. Valorizing frass in this way generates income for beetle farmers and recycles nutrients to soil as part of circular agriculture.

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来源期刊
Botanical Studies
Botanical Studies 生物-植物科学
CiteScore
5.50
自引率
2.90%
发文量
32
审稿时长
2.4 months
期刊介绍: Botanical Studies is an open access journal that encompasses all aspects of botany, including but not limited to taxonomy, morphology, development, genetics, evolution, reproduction, systematics, and biodiversity of all plant groups, algae, and fungi. The journal is affiliated with the Institute of Plant and Microbial Biology, Academia Sinica, Taiwan.
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