Effects of Vermicompost Tea (Aqueous Extract) on Pak Choi Yield, Quality, and on Soil Biological Properties
Effects of Vermicompost Tea (Aqueous Extract) on Pak Choi Yield, Quality, and on Soil Biological Properties
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蚯蚓粪茶（水提取物）对小白菜产量、品质和土壤生物特性的影响
DOI：
10.1080/1065657x.2011.10737010
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发表时间：
2011
期刊：
影响因子：
--
通讯作者：
N. Arancon
中科院分区：
文献类型：
--
作者：
Archana Pant;Theodore J.K. Radovich;Nguyen V. Hue;N. Arancon
本研究研究了蚯蚓堆肥茶（水提液）在两种肥料（堆肥和合成肥料）和三种培养基（两种土壤和一种泥炭-珍珠岩培养基）下对白菜（Brassica rapa cv Bonsai, Chinensis group）产量和化学品质的影响。研究了施用茶叶对培养基化学和生物学特性的影响。采用不同的提取方法（不曝气、曝气、加添加剂曝气），以1:10 （v:v）的鸡粪为基础的蚯蚓堆肥与水稀释，每周以200 mL植物−1的速度施用，持续4周。施用蚯蚓堆肥茶可提高植物产量，提高植物组织中总类胡萝卜素和总硫代葡萄糖苷含量。这种效应在堆肥施肥下最为显著。蚯蚓堆肥茶处理的植株总酚含量低于单纯矿质营养液处理和水分对照处理的植株。蚯蚓堆肥茶改善了植物和培养基的矿质营养状况，提高了培养基的生物活性。不同处理间植物产量和化学品质的变异主要由组织氮吸收和干物质积累的变异来解释。蚯蚓堆肥茶处理培养基的脱氢酶活性和土壤呼吸比未处理培养基高约50%。本研究证实了蚯蚓堆肥茶对多种土壤类型的植物产量和品质具有积极的影响，并能提高土壤生物活性。
This study investigated the effects of vermicompost tea (aqueous extract) on yield and chemical quality of pak choi (Brassica rapa cv Bonsai, Chinensis group) grown in three media (two soils and a peat-perlite medium) under two fertilizer regimes (compost and synthetic fertilizer). The impacts of tea application on the chemical and biological properties of the growth media were also investigated. Vermicompost teas were prepared using various extraction methods (non-aerated, aerated, aerated with additives) with 1:10 (v:v) chicken manure-based vermicompost to water dilution and applied weekly at the rate of 200 mL plant−1 for 4 weeks. Application of vermicompost tea increased plant production, total carotenoids and total glucosinolates in plant tissue. This effect was most prominent under compost fertilization. Total phenolic was lower in vermicompost tea treated plants compared to those treated with only mineral nutrient solution and the water control. Vermicompost tea improved mineral nutrient status of plants and media, and enhanced the biological activity of the media. Variability in yield and chemical quality of plants across treatments was explained largely by variability in tissue N uptake and dry matter accumulation. Dehydrogenase activity and soil respiration of vermicompost tea-treated growth media were approximately 50% higher than untreated media. This study confirmed that vermicompost tea can positively influence plant yield and quality and increase soil biological activity in multiple soil types.
DOI：
10.1073/pnas.0403218101
发表时间：
2004-07-06
影响因子：
11.1
作者：
Hirai, MY;Yano, M;Saito, K
通讯作者：
Saito, K