Vermicompost production house of a farmer, Degu Dinka in Bido Kebele of Gechi District. (Gerba Leta)

Vermicomposting (埃塞俄比亚)

Komposti Ramo

描述

Vermicompost is the product of the decomposition process using various species of earthworms. It is a form of humus and is produced through worms digesting and excreting organic in their casts. Vermicompost has been shown to be an effective organic soil amendment, reducing the need for inorganic fertilizers.

Vermicomposting is the process by which worms convert organic materials (usually wastes) into a humus-like material known as vermicompost. The process is an aerobic, bio-oxidation, non-thermophilic process of organic decomposition that depends upon earthworms to fragment, mix and promote microbial activity. In making vermicompost, earthworms are very good at transforming dead plant material, and livestock droppings into excellent manure. The excrement of the worms has high nutrient levels and a growth‐promoting effect on plants. Earthworms are very sensitive to changes in moisture and temperature. They need a continuous food supply and protection from ants, birds, and chickens. Compared to ordinary compost making, it needs maximum care. For optimum management practices, vermicompost production must be located close to the homestead where livestock barns are usually located. Livestock droppings (especially those of horses and donkeys) are the best sources of feed in addition to plant biomass and other household refuses. Vermicompost production needs a bin in which the worms live. This holds the bedding and food scraps, regulates the amount of moisture and temperature in the bedding, and blocks light which is harmful to the nocturnal worms. Worm bins can be made from plastic or wooden materials. In Ethiopia, wooden boxes are preferred because they are more absorbent and provide better insulation.
Vermicompost reduces farmers’ investment costs on chemical fertilizers. It also has a sustainable role in restoring soil fertility, ameliorating soil acidity and rehabilitating degraded farmland – all of which are problems in the southwestern part of Ethiopia. In the farm where vermicompost is applied, newly transplanted seedlings, in the case of vegetables, remain green and resilient as the compost improves not only the nutrients but also the moisture content of the soil. According to the land users, annual and perennial crops such as horse beans (Vicia faba), wheat, cabbages and avocados grown under vermicompost do very well. Under ideal conditions, 1,000 earthworms can convert 45kg of wet biomass per week into about 25kg of vermicompost. Therefore, the size of production depends on the number of worms, supply of foods, availability of boxes, and associated management practices. In rows and spot application of vermicompost during planting the crop allows efficient and effective uses of the products.

Currently (2023) the government in the southwestern zones of Oromia Region is promoting vermicompost as a vital organic fertilizer. This signals a change in the public sector's and end-users’ mindset in the use of organic fertilizer as a reliable soil amendment, particularly in acid-prone areas. In general, compost restores soil fertility, increases crop production and improves the livelihood of the end users. While the initial cost of constructing the house and installing bins and worms is high, there is potential for the use of local materials. However, it demands considerable household labour for upkeep.

地点

地点: Gechi district, Oromia, Buno-Bedele Zone, 埃塞俄比亚

分析的技术场所数量: 单一场所

选定地点的地理参考
  • 36.44966, 8.23228

技术传播: 适用于特定场所/集中在较小区域

在永久保护区?:

实施日期: 2020; 不到10年前(最近)

介绍类型
Vermiworms in operation inside vermicompost production box. (Gerba Leta)

技术分类

主要目的
  • 改良生产
  • 减少、预防、恢复土地退化
  • 保护生态系统
  • 结合其他技术保护流域/下游区域
  • 保持/提高生物多样性
  • 降低灾害风险
  • 适应气候变化/极端天气及其影响
  • 减缓气候变化及其影响
  • 创造有益的经济影响
  • 创造有益的社会影响
土地利用
同一土地单元内混合使用的土地: 否

  • 农田
    • 一年一作: 谷类 - 小麦(春季), 蔬菜 - 根茎类蔬菜(胡萝卜、洋葱、甜菜等), 豆科牧草和豆类 - 豆子
    每年的生长季节数: 1
    采用间作制度了吗?: 否
    采用轮作制度了吗?: 是

供水
  • 雨养
  • 混合雨水灌溉
  • 充分灌溉

土地退化相关的目的
  • 防止土地退化
  • 减少土地退化
  • 修复/恢复严重退化的土地
  • 适应土地退化
  • 不适用
解决的退化问题
  • 土壤水蚀 - Wt:表土流失/地表侵蚀 , Wg:冲沟侵蚀/沟蚀
  • 化学性土壤退化 - Cn:肥力下降和有机质含量下降(非侵蚀所致), Ca:酸化
  • 物理性土壤退化 - Pc:压实, Ps:有机土壤沉降,土壤沉降, Pu:由于其他活动而导致生物生产功能的丧失
  • 生物性退化 - Bc:植被覆盖的减少, Bh:栖息地丧失, Bq:数量/生物量减少, Bs:质量和物种组成/多样性的下降, Bl:土壤寿命损失
SLM组
  • 农畜综合管理
  • 土壤肥力综合管理
  • 病虫害综合管理(包括有机农业)
SLM措施
  • 农艺措施 - A2:有机质/土壤肥力, A3:土壤表面处理, A4:地表下处理
  • 管理措施 - M2:改变管理/强度级别

技术图纸

技术规范
The box is also made with wooden pegs supported with thin horizontal bars and plastered by mud made of soil and water mixed with straw of teff (Eragrostis tef). The box is usually 3 meters long, 60 cm wide, and 50 cm deep, with a total capacity of carrying 0.9 m3 of worms and feedstock at a time. This is a manageable size with 50 cm wide between the structure to allow mobility of the caregivers for effective management of vermicompost.
Author: Gerba Leta

技术建立与维护:活动、投入和费用

投入和成本的计算
  • 计算的成本为:每个技术单元 (单位:House, boxes, worms, labor... volume, length: The preferred box size is 3m (L) x 50cm (W) x 30cm (H) with holes (0.5cm diameter).)
  • 成本计算使用的货币:ETB
  • 汇率(换算为美元):1 美元 = 53.12 ETB
  • 雇用劳工的每日平均工资成本:200
影响成本的最重要因素
The cost is consistently changing. It might be attributed to the economic crisis and the growing inflation.
技术建立活动
  1. Constructing house or huts. (时间/频率: Anytime, preferable before the main cropping season.)
  2. Build or purchase the worm bin/ boxes/structure with same function. (时间/频率: Anytime, preferable before the main cropping season.)
  3. Purchase and/or introduce the worms. (时间/频率: Anytime, preferable before the main cropping season.)
  4. Add the food and water to the box/structure. (时间/频率: Regularly, through monitoring the status of the worms in the bin/box.)
  5. Monitor the surround from the predators and aerate the structure. (时间/频率: Regular monitoring is commendable.)
  6. Harvest and dry the vermicompost for use. (时间/频率: When the worms feed on the feedstock and cast the compost (brown humus).)
技术建立的投入和成本 (per House, boxes, worms, labor...)
对投入进行具体说明 单位 数量 单位成本 (ETB) 每项投入的总成本 (ETB) 土地使用者承担的成本%
劳动力
Labor PDs 183.0 200.0 36600.0 100.0
设备
Boxes number 14.0 250.0 3500.0 100.0
其它
House with corrugated iron sheet Lump sum 1.0 25000.0 25000.0 100.0
Worms kg 12.0 500.0 6000.0
技术建立所需总成本 71'100.0
技术建立总成本,美元 1'338.48
技术维护活动
  1. Labour to supply feedstock and provision of other related management practices. (时间/频率: It needs follow-up and supplying the feedstock throughout the year.)
技术维护的投入和成本 (per House, boxes, worms, labor...)
对投入进行具体说明 单位 数量 单位成本 (ETB) 每项投入的总成本 (ETB) 土地使用者承担的成本%
劳动力
Labor for follow-up and related practices PDs 183.0 200.0 36600.0 100.0
技术维护所需总成本 36'600.0
技术维护总成本,美元 689.01

自然环境

年平均降雨量
  • < 250毫米
  • 251-500毫米
  • 501-750毫米
  • 751-1,000毫米
  • 1,001-1,500毫米
  • 1,501-2,000毫米
  • 2,001-3,000毫米
  • 3,001-4,000毫米
  • > 4,000毫米
农业气候带
  • 潮湿的
  • 半湿润
  • 半干旱
  • 干旱
关于气候的规范
气象站名称:Bedele
斜坡
  • 水平(0-2%)
  • 缓降(3-5%)
  • 平缓(6-10%)
  • 滚坡(11-15%)
  • 崎岖(16-30%)
  • 陡峭(31-60%)
  • 非常陡峭(>60%)
地形
  • 高原/平原
  • 山脊
  • 山坡
  • 山地斜坡
  • 麓坡
  • 谷底
海拔
  • 0-100 m a.s.l.
  • 101-500 m a.s.l.
  • 501-1,000 m a.s.l.
  • 1,001-1,500 m a.s.l.
  • 1,501-2,000 m a.s.l.
  • 2,001-2,500 m a.s.l.
  • 2,501-3,000 m a.s.l.
  • 3,001-4,000 m a.s.l.
  • > 4,000 m a.s.l.
......应用的技术
  • 凸形情况
  • 凹陷情况
  • 不相关
土壤深度
  • 非常浅(0-20厘米)
  • 浅(21-50厘米)
  • 中等深度(51-80厘米)
  • 深(81-120厘米)
  • 非常深(> 120厘米)
土壤质地(表土)
  • 粗粒/轻(砂质)
  • 中粒(壤土、粉土)
  • 细粒/重质(粘土)
土壤质地(地表以下>20厘米)
  • 粗粒/轻(砂质)
  • 中粒(壤土、粉土)
  • 细粒/重质(粘土)
表土有机质含量
  • 高(>3%)
  • 中(1-3%)
  • 低(<1%)
地下水位
  • 表面上
  • < 5米
  • 5-50米
  • > 50米
地表水的可用性
  • 过量
  • 中等
  • 匮乏/没有
水质(未处理)
  • 良好饮用水
  • 不良饮用水(需要处理)
  • 仅供农业使用(灌溉)
  • 不可用
水质请参考: 地下水
盐度是个问题吗?

洪水发生
物种多样性
  • 中等
栖息地多样性
  • 中等

应用该技术的土地使用者的特征

市场定位
  • 生计(自给)
  • 混合(生计/商业)
  • 商业/市场
非农收入
  • 低于全部收入的10%
  • 收入的10-50%
  • > 收入的50%
相对财富水平
  • 非常贫瘠
  • 贫瘠
  • 平均水平
  • 丰富
  • 非常丰富
机械化水平
  • 手工作业
  • 畜力牵引
  • 机械化/电动
定栖或游牧
  • 定栖的
  • 半游牧的
  • 游牧的
个人或集体
  • 个人/家庭
  • 团体/社区
  • 合作社
  • 员工(公司、政府)
性别
  • 女人
  • 男人
年龄
  • 儿童
  • 青年人
  • 中年人
  • 老年人
每户使用面积
  • < 0.5 公顷
  • 0.5-1 公顷
  • 1-2 公顷
  • 2-5公顷
  • 5-15公顷
  • 15-50公顷
  • 50-100公顷
  • 100-500公顷
  • 500-1,000公顷
  • 1,000-10,000公顷
  • > 10,000公顷
规模
  • 小规模的
  • 中等规模的
  • 大规模的
土地所有权
  • 公司
  • 社区/村庄
  • 团体
  • 个人,未命名
  • 个人,有命名
土地使用权
  • 自由进入(无组织)
  • 社区(有组织)
  • 租赁
  • 个人
用水权
  • 自由进入(无组织)
  • 社区(有组织)
  • 租赁
  • 个人
进入服务和基础设施的通道
健康

贫瘠
教育

贫瘠
技术援助

贫瘠
就业(例如非农)

贫瘠
市场

贫瘠
能源

贫瘠
道路和交通

贫瘠
饮用水和卫生设施

贫瘠
金融服务

贫瘠

影响

社会经济影响
作物生产
降低
增加

SLM之前的数量: Abandoned for faba beans
SLM之后的数量: 1.2 tons/ha
The yield of Faba bean increased from negligible yield where a farmer abandoned it to over 1 ton per hectare.

作物质量
降低
增加


It was not scientifically measured but the farmer communicated the harvest of good seed size with better tastes as compared to the harvest without using vermicompost.

饲料生产
降低
增加


There is an assumption and evidence that validate that compost favors the growth of diverse wild species. Also, it increases biomass production that associates with fodder or feed production.

产品多样性
降低
增加


The use of vermicompost enables to regain of the lost crop species because of soil degradation.

土地管理
妨碍
简化


As it added organic matter to the soil, it improves soil structure and other attributes of the soil that improve the land.

农业投入费用
增加
降低


It reduces investment on synthetic fertilizers and allows to harvest organic products.

农业收入
降低
增加


As most of the distinctions between the treatments with SLM technology vs without technology are not properly documented by the land users, it is difficult to quantify them. However, the evidence from the demonstration plots shows the yield increments by more than quadruple per unit of land. Since then the technology is applied recently, and promoting documentation of the yield difference by the land users themselves is commendable to ensure access to reliable data.

社会文化影响
食品安全/自给自足
减少
改良


Generally, it added value to the efforts of ensuring food as well as nutrition security.

健康状况
恶化
改良


Health situation is converging with ensured food and nutrition security.

SLM/土地退化知识
减少
改良


Increased through exchange visit and participatory learning of the effect of the technology on the farm.

社会经济弱势群体的情况(性别、年龄、地位、种族等)
恶化
改良


Slightly improved with access and use of the technology.

生态影响
地表径流
增加
降低


This is with the assumption that vermicompost improve soil structure via the addition of organic matter and improves water infiltration than favoring runoff.

多余水的排放
减少
改良

土壤水分
降低
增加

土壤覆盖层
减少
改良

土壤流失
增加
降低

土壤堆积
降低
增加

土壤结壳/密封
增加
减少

土壤压实
增加
减少

养分循环/补给
降低
增加

土壤有机物/地下C
降低
增加

酸度
增加
减少

植被覆盖层
降低
增加

生物量/地上C
降低
增加

植物多样性
降低
增加

动物多样性
降低
增加

有益物种(捕食者、蚯蚓、传粉者)
降低
增加

栖息地多样性
降低
增加

碳和温室气体的排放
增加
降低

场外影响
水的可用性(地下水、泉水)
降低
增加

旱季稳定可靠的水流(包括低流量)
减少
增加

下游洪水(不希望)
增加
减少

下游淤积
增加
降低

成本效益分析

与技术建立成本相比的效益
短期回报
非常消极
非常积极

长期回报
非常消极
非常积极

与技术维护成本相比的效益
短期回报
非常消极
非常积极

长期回报
非常消极
非常积极

气候变化

渐变气候
年降雨量 减少

非常不好
非常好
季雨量 减少

非常不好
非常好
季节: 夏季

采用和适应

采用该技术的地区内土地使用者的百分比
  • 单例/实验
  • 1-10%
  • 11-50%
  • > 50%
在所有采用这种技术的人当中,有多少人在没有获得物质奖励的情况下采用了这种技术?
  • 0-10%
  • 11-50%
  • 51-90%
  • 91-100%
最近是否对该技术进行了修改以适应不断变化的条件?
什么样的变化条件?
  • 气候变化/极端气候
  • 不断变化的市场
  • 劳动力可用性(例如,由于迁移)
  • Produced the boxes from local materials such as mud and posts.
The land users and the district ISFM+ project focal person modified the boxes by building with a bunch of sticks plastered with mud to replace the priceless boxes made up of timbers.

结论和吸取的教训

长处: 土地使用者的观点
  • Reduce investment costs on chemical fertilizers.
  • Partly replace the role of chemical fertilizers.
  • Improve soil fertility and reduces soil acidity.
长处: 编制者或其他关键资源人员的观点
  • Rehabilitate the degraded land and improve the biodiversity of flora and fauna.
  • Reduce risks of crop failure.
  • Creat employment opportunity
弱点/缺点/风险: 土地使用者的观点如何克服
  • Labor demanding. Engage family labor.
  • Shortage of biomass to supply feedstock. Improve access to biomass supply and improve practical uses of crop residue and animal excreta.
弱点/缺点/风险: 编制者或其他关键资源人员的观点如何克服
  • Lack of proper documentation by the land users inline with such comprehensive questions. Promote the capacity of land users to document the various facets of the technology on land management, production, and other multiple pros and cons.

参考文献

编制者
  • GERBA LETA
Editors
  • Noel Templer
  • Julia Doldt
  • Kidist Yilma
  • Likissa Kurmana Dufera
  • Tabitha Nekesa
  • Ahmadou Gaye
  • Siagbé Golli
审查者
  • William Critchley
  • Rima Mekdaschi Studer
  • Sally Bunning
实施日期: Feb. 6, 2023
上次更新: April 21, 2024
资源人
WOCAT数据库中的完整描述
链接的SLM数据
文件编制者
机构 项目
主要参考文献
  • Organic Exchange. 2009. Soil Fertility Management: An introductory Fact-Sheet for Farmers and Projects.: Free online
  • MoA. 2016. Technical Manual: Integrated Soil Fertility Management. SLMP Training Series 14. Addis Ababa, Ethiopia.: Free online
链接到网络上可用的相关信息
This work is licensed under Creative Commons Attribution-NonCommercial-ShareaAlike 4.0 International