Abordagens

Integrated Soil Fertility Management (ISFM) [Etiópia]

Qindoomina Misooma Gabbina Biyyee (Afaan Oromoo) /Yeteqenaje ye Afer Limat (Amharic)

approaches_6732 - Etiópia

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1. Informação geral

1.2 Detalhes do contato das pessoas capacitadas e instituições envolvidas na avaliação e documentação da abordagem

Pessoa(s) capacitada(s)

Especialista em GST:
Nome do projeto que facilitou a documentação/avaliação da Abordagem (se relevante)
Soil protection and rehabilitation for food security (ProSo(i)l)
Nome da(s) instituição(ões) que facilitou(ram) a documentação/avaliação da Abordagem (se relevante)
CIAT International Center for Tropical Agriculture (CIAT International Center for Tropical Agriculture) - Quênia

1.3 Condições em relação ao uso da informação documentada através de WOCAT

Quando os dados foram compilados (no campo)?

07/02/2023

O compilador e a(s) pessoa(s) capacitada(s) aceitam as condições relativas ao uso de dados documentados através do WOCAT:

Sim

1.4 Referência ao(s) questionário(s) sobre tecnologias da GST

Treating acid soils with lime
technologies

Treating acid soils with lime [Etiópia]

Acidic soils deprive crops of their full nutrient absorption capacity. Lime application to these soil makes them less acidic. It breaks the barrier that fixes nutrients and ensures crops access to vital soil nutrients that unleash their productivity potential.

  • Compilador/a: GERBA LETA
Crop Residue Management
technologies

Crop Residue Management [Etiópia]

Crop residue management involves leaving stover and other trash from cereal crops (including tef, wheat and maize), as well as haulms of legumes, in the field. Crop residues keep the soil covered, retain organic matter and moisture in the soil, and help to ensure better production.

  • Compilador/a: GERBA LETA
Green Manures
technologies

Green Manures [Etiópia]

Green manures are fast-growing legumes sown in a field, weeks or even months before the main crop is planted. These are plants that are deliberately grown for incorporation into the soil to improve fertility and organic matter content.

  • Compilador/a: GERBA LETA
Cover crops
technologies

Cover crops [Etiópia]

Cover crops are crops grown on bare, fallow farmland or under a main crop to cover and conserve the soil by protecting it from exposure to the sun, wind, and direct impact of rain. It fixes nitrogen (if a legume), improves soil fertility, supplies livestock fodder, and helps manage both …

  • Compilador/a: GERBA LETA
Relay Intercropping
technologies

Relay Intercropping [Etiópia]

Intercropping is the growing of two or more crops on the same piece of land at the same time or in temporal sequence. Relay intercropping usually involves planting a legume into an established cereal crop. This farming practice has multiple benefits and is a popular among smallholders in Wolaita zone …

  • Compilador/a: GERBA LETA
Livestock Urine Collection and Use
technologies

Livestock Urine Collection and Use [Etiópia]

Collection of livestock urine allows resource-poor farmers to capture nutrient-rich livestock waste and use it to substitute urea fertilizer. It is a liquid organic product that restores soil fertility and pest management.

  • Compilador/a: GERBA LETA
Vermicomposting
technologies

Vermicomposting [Etiópia]

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.

  • Compilador/a: GERBA LETA
Bioslurry
technologies

Bioslurry [Etiópia]

Bioslurry is a byproduct of the anaerobic process used for production of methane (biogas). It is derived from the manure used to feed the biodigester. Bioslurry is an organic fertilizer that serves as a replacement for chemical fertilizers, and also plays a pesticidal role.

  • Compilador/a: GERBA LETA

2. Descrição da abordagem de GST

2.1 Descrição curta da abordagem

The Integrated Soil Fertility Management (ISFM) approach has been adopted under the Integrated Soil Fertility Management Project (ISFM+). It was introduced as a quick-win solution to increase both crop and biomass production through the incremental promotion of varied but complementary technology packages.

2.2 Descrição detalhada da abordagem

Descrição detalhada da abordagem:

The Integrated Soil Fertility Management (ISFM) approach is intended to increase both crop and biomass production through the incremental promotion of varied but complementary technology packages. These include the production and use of organic fertilizers, treatment of soil acidity, and improved retention of crop residue. All help in reducing the depletion (mining) of soil nutrients. One characteristic feature is the engagement of research and development partners at all levels such as in joint problem identification, learning, participatory planning, piloting technology, and exchange visits. The approach involves model farmers and also focuses on farmers with limited means to purchase chemical fertilizers. It enhances the production of organic fertilizers to increase both soil fertility and crop productivity. Furthermore, ISFM enables farmers to generate off-farm and on-farm income through the production and sale of organic fertilizers, vermiworms, and green manure seeds, etc. The partners assist in identifying soil-related issues, as well as enhancing the adoption and institutionalization of the approach. ISFM aims to improve stakeholders' understanding of land degradation issues and the necessity of SLM by creating access to relevant seasonal training, exposure visits, collective learning, and action.
Project focal persons representing partners at different levels and development agents (DAs) are used to facilitate the process and serve as potential links with stakeholders. At the local level, the Farmers Research and Extension Group (FREG) sub-approach supports the implementation of the technologies on an incremental basis (see WOCAT database). Also, the Soil Fertility Improvement Cluster approach (see WOCAT database) assists in scaling out of the ISFM approach by adopting and superimposing technologies such as vermicompost with improved compost production. Farmer ambassadors are identified from the FREG model based on their performance. They assist in mainstreaming and dissemination of the approach and technologies to indirect beneficiaries. The implementation process of the ISFM involves district and kebele selection, identification of watersheds and voluntary farmers, provision of capacity-building training, conducting participatory planning, supplying inputs, and technical support. To realize the aims, the ISFM+ allocates financial support to the partners at different levels via Local Subsidy Contract.
Project staff including federal and regional advisors are involved. They provide training, technical backstopping, reviewing progress, M&E, and feedback services. District focal person closely follows up on the implementation - with the support of DAs in steering farmers' group meetings and collective learning. In addition, DAs assist in piloting on farm short and long-term demonstrations, organizing field days and exchange visits, collecting data, and overseeing activities.
Land users like the technologies introduced and implemented via the ISFM approach. The promotion of collective learning and action leads to increased soil fertility, and improved crop production and smallholders' livelihoods. The creation of new sources of income for land users is among the benefits they appreciate the most. However, farmers are less enthusiastic by the way that group meetings clash with their other activities and this leads to some members dropping out. Also, the cost of technologies promoted by the ISFM such as combined uses of chemical fertilizers, bio-fertilizers (for legumes), organic fertilizers, and quality seeds are envisaged as a possible constraint among others.

2.3 Fotos da abordagem

2.4 Vídeos da abordagem

Comentários, breve descrição:

Video of the approach is not documented.

2.5 País/região/locais onde a abordagem foi aplicada

País:

Etiópia

Especificação adicional de localização:

Addis Ababa

Comentários:

The approach is currently applied in three to four regional states of Ethiopia.

2.6 Datas de início e término da abordagem

Indique o ano de início:

2015

Caso o ano exato seja desconhecido, indique a data aproximada de início da abordagem:

menos de 10 anos atrás (recentemente)

Ano de término (caso a abordagem não seja mais aplicada):

2025

Comentários:

The project will be operational up to 2025.

2.7 Tipo de abordagem

  • Baseado em projeto/programa

2.8 Principais metas/objetivos da abordagem

The main objective of the approach is to promote the integration of technologies, collective learning, and action for treating degraded soil, increasing soil fertility and crop productivity while ensuring sustainable uses of land.

2.9 Condição que propiciam ou inibem a implementação de tecnologia/tecnologias aplicada(s) segundo a abordagem

Disponibilidade/acesso a recursos e serviços financeiros
  • Propício

Access to financial resources improved farmers' access to materials and inputs on their own. This promotes the adoption and scaling up of the technology using ISFM approach.

Quadro institucional
  • Propício

Institutional setting such as farmers' group formation promotes collective learning and action.

Colaboração/coordenção de atores
  • Propício

Is central to promoting effective implementation of the approach that entails various research and development actors.

Políticas
  • Propício

Such as adopting lime production, distribution and use policy enables successful implementation of the approach.

Conhecimento sobre GST, acesso a suporte técnico
  • Propício
Mercados (para comprar entradas, vender produtos) e preços
  • Propício
Carga de trabalho, disponibilidade de força de trabalho
  • Propício

Family labor enables production of organic fertilizers and effective implementation of lime and other technologies which are labor intensive.

3. Participação e papel das partes interessadas envolvidas

3.1 Partes interessadas envolvidas na abordagem e seus papéis

  • Usuários de terra/comunidades locais

Model farmers, and other smallholders (followers).

Lead group meeting, facilitate collective learning and action based on the pilot practices/activities.

  • Especialistas em GST/ consultor agrícola

Focal persons and experts from soil fertility improvement /extension unit of the district.

Facilitate implementation of the technology via the approach, and serve as a link between stakeholders.

  • Pesquisadores

Soil researchers from Regional Research Institutes, and respective technologies.

Soil testing, production of bio fertilizer, and supporting the different technologies with research findings.

  • Organização não governamental

SNV Ethiopia, Nutrition Sensitive Agriculture, and other GIZ projects.

Integration of efforts such as on biogas/bioslurry production and other respective project implementation activities.

  • Setor privado

Agro dealers, and other services providers

Facilitate the distribution of lime and improved seeds, provide services on mechanization such as maintenance, etc.

  • Governo local

District office of agriculture, and woreda administration.

Partnerships, acknowledge implementation of the project and provide administrative support when required.

  • Governo nacional (planejadores, responsáveis pelas decisões)

Ministry of Agriculture and Research System.

Support in mainstreaming the technology and approach, policy formulation and research support testing soil and tools...

  • Organização internacional

CIAT, CIMMYT, ICRISAT...

Provide research and technical support in joint areas of intervention.

Caso várias partes interessadas foram envolvidas, indique a agência líder:

Integrated Soil Fertility Management Project (ISFM+).

3.2 Envolvimento do usuários de terra/comunidades locais nas diferentes fases da abordagem
Envolvimento do usuários de terra/comunidades locais Especifique quem estava envolvido e descreva as atividades
Iniciação/motivação Apoio externo District focal person and development agents. Facilitate the implementation right from awareness raising, farmers' group formation, training, supply inputs, and technically support the implementation.
Planejamento Participativo Regional advisor, focal persons, and the farmers. Each engaged in a participatory planning exercise.
Implementação Participativo Farmers, focal persons, and development agents. Farmers implement the technologies being guided by the approach. Whereas, the focal person and development agents oversee and provide technical support.
Monitoramento/avaliação Participativo Focal person, development agents, and land users. They conduct participatory M&E to ensure collective learning.

3.3 Fluxograma (se disponível)

Descrição:

ISFM approach that run from the federal to kebele where FREG is the pillar approach serving the land users as a platform for collective learning and action at local level.

Autor:

Gerba Leta

3.4 Decisão sobre a seleção de tecnologia/tecnologias de GST

Especifique quem decidiu sobre a seleção de tecnologia/tecnologias a serem implementadas:
  • Principalmente usuários da terra, apoiados por especialistas em GST
Especifique em que base foram tomadas as decisões:
  • Avaliação de conhecimento bem documentado de GST (tomada de decisão baseada em evidências)
  • Resultados de pesquisa
  • Experiência pessoal e opiniões (não documentado)

4. Suporte técnico, reforço das capacidades e gestão do conhecimento

4.1 Reforço das capacidades/formação

Foi oferecida formação aos usuários da terra/outras partes interessadas?

Sim

Especifique quem foi capacitado:
  • Usuários de terra
  • Equipe de campo/consultores
Caso seja relevante, especifique gênero, idade, status, etnia, etc.

One-third of the land users represented by female farmers.

Tipo de formação:
  • Em exercício
  • Agricultor para agricultor
  • Áreas de demonstração
  • Reuniões públicas
Assuntos abordados:

Soil degradation, rehabilitation of the degraded soil using different technologies and agronomic practices notably lime, organic fertilizers, bio fertilizer, crop residue management, mixed cropping, green manuring, application of minimum tillage practices, etc.

4.2 Serviço de consultoria

Os usuários de terra têm acesso a um serviço de consultoria?

Sim

Especifique se foi oferecido serviço de consultoria:
  • nas áreas dos usuários da terra
  • Em centros permanentes
Descreva/comentários:

Advisory services are provided by the focal person and development agents at Farmers Training Center and on the farmers' field.

4.3 Fortalecimento da instituição (desenvolvimento organizacional)

As instituições foram fortalecidas ou estabelecidas através da abordagem?
  • Sim, moderadamente
Especifique a que nível (níveis) as instituições foram fortalecidas ou estabelecidas:
  • Local
Descreva instituição, papéis e responsabilidades, membros, etc.

Farmers Research and Extension Group (FREG) has been established at the local level and has been serving as an approach at the local level. It has been serving as a local platform that brings members of the farmers' group together in participatory planning and joint learning of the technologies piloted on the farmer's field and short and long-term demonstrations.

Especifique o tipo de apoio:
  • Financeiro
  • Reforço das capacidades/formação
  • Equipamento
Dê mais detalhes:

The project provides financial support through the Local Subsidy Contract. Capacity building is central to the implementation of the project. Farm tools as an incentive for the best-performing farmers and on-field soil testing equipment are provided to support the partner organizations scaling out the implementation of ISFM.

4.4 Monitoramento e avaliação

Monitoramento e avaliação são partes da abordagem?

Sim

Comentários:

Monitoring and evaluation is the pillar of the project activities and the adopted approach. The project along with implementing partners pilot short-term and long-term demonstrations, monitor the progress, and evaluate the achievements. Therefore, M&E is a regular activity in which the federal and regional project advisors rely on to generate feedbacks to amend or improve the implementation of the project activities.

Caso afirmativo, esta documentação é destinada a ser utilizada para monitoramento e avaliação?

Sim

Comentários:

This document can simultaneously be used for documenting the approach and monitoring and evaluation.

4.5 Pesquisa

A pesquisa foi parte da abordagem?

Sim

Especifique os tópicos:
  • Tecnologia
Dê mais detalhes e indique quem realizou a pesquisa:

The research targets the feasibility of the technologies introduced via the ISFM approach and the project itself. The role of integrating different technology packages in improving soil fertility and crop productivity is also among the focuses of the research.

5. Financiamento e apoio material externo

5.1 Orçamento anual para o componente de GST da abordagem

Caso o orçamento exato seja desconhecido, indique a faixa:
  • 2.000-10.000
Comentários (p. ex. principais fontes de recursos/principais doadores):

ISFM+ is the source of the budget. A local Subsidy Contract (LSC) has been provided to partner organizations to effectively implement and follow up the activities with an additional allocation of finance for inputs and services.

5.2 Apoio financeiro/material concedido aos usuários da terra

Os usuários da terra receberam apoio financeiro/material para a implementação de tecnologia/tecnologias?

Sim

Caso afirmativo, especifique tipo(s) de apoio, condições e fornecedor(es):

The project introduces technologies, provides inputs (improved seeds, chemical fertilizers, lime), and seldom supplies farm tools for a few well-performing models as an incentive.

5.3 Subsídios para entradas específicas (incluindo mão-de-obra)

  • Nenhum
 
  • Agrícola
Especifique quais entradas foram subsidiadas Em que medida Especifique os subsídios

5.4 Crédito

Foi concedido crédito segundo a abordagem para atividades de GST?

Não

5.5 Outros incentivos ou instrumentos

Foram utilizados outros incentivos ou instrumentos para promover a implementação das tecnologias de GST?

Sim

Caso afirmativo, especifique:

Farm tools for outstanding farmers as well as a solar panel for residents in a rural setting as an incentive for well-performing in adopting the approach and proper implementation of the project.

6. Análise de impactos e declarações finais

6.1 Impactos da abordagem

A abordagem concedeu autonomia aos usuários locais de terra, melhorou a participação das partes interessadas?
  • Não
  • Sim, pouco
  • Sim, moderadamente
  • Sim, significativamente

Land users learned the benefit of integrating three or more technologies/practices to improve soil fertility, and crop productivity and ensure the SLM is being in place.

A abordagem propiciou a tomada de decisão baseada em evidências?
  • Não
  • Sim, pouco
  • Sim, moderadamente
  • Sim, significativamente

The approach certainly enables evidence-based decision-making by comparing the yield from the plots with treatment (technology packages) versus the control (without full packages).

A abordagem auxiliou os usuários da terra a implementar e manter as tecnologias de GST?
  • Não
  • Sim, pouco
  • Sim, moderadamente
  • Sim, significativamente

The combination of three or more technologies, all in one inspires the land users to adopt and sustainably implement the SLM technologies.

A abordagem melhorou a coordenação e a implementação economicamente eficiente da GST?
  • Não
  • Sim, pouco
  • Sim, moderadamente
  • Sim, significativamente

Coordination at a local level is not up to the expectation.

A abordagem mobilizou/melhorou o acesso aos recursos financeiros para implementação da GST?
  • Não
  • Sim, pouco
  • Sim, moderadamente
  • Sim, significativamente
A abordagem aprimorou o conhecimento e as capacidades dos usuários da terra para implementar a GST?
  • Não
  • Sim, pouco
  • Sim, moderadamente
  • Sim, significativamente

It improves the knowledge and skills of land users to implement SLM by promoting collective learning and action that highly increases peer learning through observation and social learning.

A abordagem aprimorou o conhecimento e as capacidades de outras partes interessadas?
  • Não
  • Sim, pouco
  • Sim, moderadamente
  • Sim, significativamente

It impacts or improves the knowledge and skills of indirect beneficiaries through farmer's ambassadors.

A abordagem construiu/fortaleceu instituições, colaboração entre partes interessadas?
  • Não
  • Sim, pouco
  • Sim, moderadamente
  • Sim, significativamente

It strengthens the inter-farmers collaboration and coordination that is seldom constrained by the overlaps with local activities such as public meetings and other communal affairs mostly known as new arrivals.

A abordagem atenuou conflitos?
  • Não
  • Sim, pouco
  • Sim, moderadamente
  • Sim, significativamente
A abordagem concedeu autonomia aos grupos social e economicamente desfavorecidos?
  • Não
  • Sim, pouco
  • Sim, moderadamente
  • Sim, significativamente

Farmers who have no financial means to access and use chemical fertilizers and other inputs involved via the approach.

A abordagem melhorou a igualdade de gêneros e concedeu autonomia a mulheres e meninas?
  • Não
  • Sim, pouco
  • Sim, moderadamente
  • Sim, significativamente

One-third of a member of the farmers' group are women farmers- a signal for improvement of participation by gender.

A abordagem encorajou os jovens/as próximas gerações de usuários de terra a se envolverem na GST?
  • Não
  • Sim, pouco
  • Sim, moderadamente
  • Sim, significativamente

There is an assumption that young people learn from the family and neighbors who engaged in the implementation of the approach. This certainly inspires the young generation to take up and implement SLM activities.

A abordagem melhorou as questões de posse de terra/diretos do usuário que inibiam a implementação das tecnologias de GST?
  • Não
  • Sim, pouco
  • Sim, moderadamente
  • Sim, significativamente
A abordagem resultou em segurança alimentar aprimorada/nutrição melhorada?
  • Não
  • Sim, pouco
  • Sim, moderadamente
  • Sim, significativamente

Through promoting technologies/practices that improve production and productivity. By promoting legumes crop production using biofertilizers and as part of intercropping practices that ensure the nutrition security of the family farmers.

A abordagem melhorou o acesso aos mercados?
  • Não
  • Sim, pouco
  • Sim, moderadamente
  • Sim, significativamente

It improves participants' access to the inputs market (selling organic fertilizers, green manure seeds, vermiworms, and surplus products).

A abordagem resultou em acesso melhorado à água e ao saneamento?
  • Não
  • Sim, pouco
  • Sim, moderadamente
  • Sim, significativamente
A abordagem resultou em uso/fontes de energia mais sustentável?
  • Não
  • Sim, pouco
  • Sim, moderadamente
  • Sim, significativamente

Mainly through supporting biogas/bioslurry technology, and the introduction of woodlots to family farmers via agroecology projects that adopt a similar approach.

A abordagem aprimorou a capacidade dos usuários da terra de adaptar-se a mudanças climáticas/extremos e atenuar os desastres relacionados com o clima?
  • Não
  • Sim, pouco
  • Sim, moderadamente
  • Sim, significativamente

This is partly through adopting minimum tillage practices, crop residue management, and the production and use of organic fertilizers that reduce carbon emissions and foster carbon sequestration.

A abordagem resultou em emprego, oportunidades de renda?
  • Não
  • Sim, pouco
  • Sim, moderadamente
  • Sim, significativamente

It creates income opportunities by promoting surplus production, production, and sale of organic fertilizers, vermiworms, and green manure seeds.

6.2 Principal motivação dos usuários da terra para implementar a GST

  • Produção aumentada

Integration of practices particularly treating the soil with lime and intensive production and use of organic fertilizers introduced through ISFM increase production.

  • Degradação do solo reduzida

Integration of SLM technologies/practices acquired through the application of the approach mitigated the degree of land degradation at the farm level.

  • Consciência ambiental

Through the provision of training, demonstration, and exchange visit... the approach promotes land users' consciousness regarding the environment.

  • melhoria dos conhecimentos e aptidões de GST

The approach allows farmers to understand well the essence of SLM through evidence-based implementation and learning that promote their knowledge and skills.

6.3 Atividades de sustentabilidade de abordagem

Os usuários da terra podem manter o que foi implementado através da abordagem (sem apoio externo)?
  • Sim
Caso afirmativo, descreva como:

As the production of organic fertilizers adopted on an individual basis and tangible benefit acquired from the implementation of the integrated approach introduced via the approach as well as the increasingly growing supply of lime for acid soil amendments similar to other chemical fertilizers, the likelihood of sustaining the approach for implementing integrated technologies is inevitable. Besides, the public organizations for instance bureaus of Agriculture and line offices such as in west Oromia of Jimma and Buno-Bedele zones institutionalized the production and uses of organic fertilizers via huge investments in establishing vermiculture centers to reach out to the large majority of smallholders subjected to soil degradation issues.

6.4 Pontos fortes/vantagens da abordagem

Pontos fortes/vantagens/oportunidades na visão do usuário da terra
It promotes collective learning and action among smallholders living in a homogenous landscape facing similar land/soil degradation issues.
It enhances soil fertility and soil health by introducing integrated technologies and creating evidence-based learning.
Gain widespread publicity that allows the public and land users to build trust in the approach and component technologies that positively impact the livelihood of smallholders and the land in general.
Pontos fortes/vantagens/oportunidades na visão do compilador ou de outra pessoa capacitada
The approach has been adopted and institutionalized within the government's mainstream rural development and agricultural extension.
The project and the implementation approach are in line with the government's short and long-term plan to ensure the food and nutrition security of the nations while conserving natural resource basis.
Integration is basic to address the nexus of issues that combine knowledge and skills development, the introduction of important agricultural inputs, technologies, or practices, all in one.

6.5 Pontos fracos, desvantagens da tecnologia e formas de superá-los

Pontos fracos/desvantagens/riscos na visão do usuário da terra Como eles podem ser superados?
Integrating technologies/practices and inputs via the approach has cost implications. Promote the land user's awareness of the cost-benefit of adopting the approach and introduction of subsidy to some inputs such as agriculture lime for acid soil amendments.
The approach drives labor-demanding technologies and practices. Promote collective action through adopting labor share arrangements as well as efficiently use family labor for follow-up of the production of organic fertilizers by task sharing.
The high investment cost for some technologies is promoted by the approach. Enable land users to make the right choices of diverse technologies catered through the project and the adopted approach.
Delay in supply of agricultural inputs such as agricultural lime Encourage private sectors involvement or the agro dealers in the supply of the agricultural inputs.
Pontos fracos/vantagens/riscos na visão do compilador ou de outra pessoa capacitada Como eles podem ser superados?
The limited scope of the project implementation sites. To try to reach out to similar landscapes with similar land degradation issues including the marginal regions. Or else, institutionalize the approach at the national level so that the public sector takes up and popularizes it in areas with similar problems.
The collaboration and collective action at local levels through the existing platform is staggered by new arrivals and other local administrative chores. Local government actors and partners need to be well aware and give due emphasis beyond considering the intervention implemented through ISFM as merely project activities that usually come and go.

7. Referências e links

7.1 Métodos/fontes de informação

  • entrevistas com usuários de terras

8

  • entrevistas com especialistas em GST

5

7.2 Referências às publicações disponíveis

Título, autor, ano, ISBN:

Leta, G., Schulz, S., Alemu, G. 2020. Agricultural extension approach: evidence from an Integrated Soil Fertility Management project in Ethiopia. Frontiers of Agricultural Science and Engineering, 7(4): 1-13. DOI: 10.15302/J-FASE-2020331

Disponível de onde? Custos?

Free online

7.3 Links para informação relevante que está disponível online

Título/ descrição:

Integrated Soil Fertility Management

URL:

https://ifdc.org/integrated-soil-fertility-management-isfm/

Módulos