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

Nome do projeto que facilitou a documentação/avaliação da Tecnologia (se relevante)

Soil protection and rehabilitation for food security (ProSo(i)l)

Nome da(s) instituição(ões) que facilitou(ram) a documentação/ avaliação da Tecnologia (se relevante)

GIZ India (GIZ India) - Índia

Nome da(s) instituição(ões) que facilitou(ram) a documentação/ avaliação da Tecnologia (se relevante)

Alliance Bioversity and International Center for Tropical Agriculture (Alliance Bioversity-CIAT) - Quênia

Nome da(s) instituição(ões) que facilitou(ram) a documentação/ avaliação da Tecnologia (se relevante)

Ecociate Consultants (Ecociate Consultants) - Índia

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

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

Sim

1.4 Declaração de sustentabilidade da tecnologia descrita

A tecnologia descrita aqui é problemática em relação a degradação da terra de forma que não pode ser declarada uma tecnologia de gestão sustentável de terra?

Não

Comentários:

The technology described here is the application of biochar on homestead land. This technology positively impacts soil health and crop production.

2.1 Descrição curta da tecnologia

Definição da tecnologia:

Biochar is a carbon-rich solid formed from the organic residue by pyrolysis. Biochar is a stable, highly water and nutrient-retentive product that benefits microorganisms and has a very high carbon sequestration potential. Farmers in the project area have applied it to their homesteads or kitchen gardens.

2.2 Descrição detalhada da tecnologia

Descrição:

Biochar, a sustainable soil amendment, is produced through pyrolysis, where organic matter such as wood or agricultural waste is heated in a closed container under low-oxygen conditions. Applying biochar to soil has numerous benefits for improving soil health, such as enhancing soil fertility, reducing greenhouse gas emissions, improving soil microbiology, and reducing soil erosion. One of the most significant benefits of biochar is its ability to sequester atmospheric carbon dioxide into the soil, which can help mitigate climate change by reducing the amount of carbon dioxide in the atmosphere. Biochar can also remove contaminants from soil and water and serve as a compost component.

Biochar also reduces the emission of ammonia and carbon dioxide (Cabeza et al. 2018), lowers soil compactness, optimizes compost (Liang et al. 2010), improves water retention and the sorption of heavy metals, increases the availability of micronutrients for plants and increases the pH of soils (Van Zwieten et al. 2010). Biochar also stimulates the growth of rhizosphere microorganisms and mycorrhizal fungi (Głuszek et al. 2017). These bacteria and fungi may also promote plant growth (Compant et al. 2010). The pH values of biochars are positively correlated with the formation of carbonates and the contents of inorganic alkalis (Ding et al. 2014). The pH value of biochar ranges from 6.5 to 10.8. It is advisable to test the pH values of both soils and biochar to reach at the optimal quantity of biochar to be applied in the field.

In the Mandla district, agriculture is the backbone of the economy, and farmers are constantly adopting new farming technologies to increase their agricultural production. One such technology that has positively impacted more than a thousand farmers in the region is the application of biochar in homestead land under a GIZ-funded Soil protection and rehabilitation of degraded soil for food security in India (ProSoil) program. Biochar in this region is prepared using low cost Biochar Kiln units developed by Indian council of agriculture research institutions, traditional methods, such as digging soil pits and burning organic residue while covering its top with soil. Since the Mandla district is a high-rainfall region, most farmers broadcast biochar over their fields before growing rabi (winter) crops. Commonly grown rabi crops in this region are mustard, vegetables, and maize.

Farmers in the Mandla district use small units of biochar production. The recovery rate of biochar is 20%, with a capacity of 100kg of organic material. The application rate per unit area varies from farmer to farmer.
1. Landholding: Farmers with more extensive land holdings or generally rotationally applied biochar in the parcels.
2. The intervention of biochar application was introduced in this region in 2020. The new practice is evolving, and the application rate of biochar varies from farmer to farmer depending on the availability of raw materials and labour availability (family/hired)

The most suitable biochar application rate is 10 − 20 t/ha. Moreover, it is essential to consider the compatibility and complementarity between biochar, soil texture, and management factors such as Nitrogen (N) application rate, pH values and growing environment into consideration (Yang Gao et al., 2021). More scientific studies are needed to define the quantity of biochar needed based on the local soil conditions. However, the current quantity of applications is very low compared to suggested in secondary documents.

The immediate effects of biochar application on crop production have been significant, with farmers reporting an increase in crop yield by 20-25% across most crops. Simple indicators such as increased grain weight and improved grain quality imply that the crop produced is of higher quality. Another critical benefit highlighted by farmers of biochar application is the retention of soil moisture over a longer duration compared to non-treated fields. Biochar can help the farmers of the Mandla district increase their agricultural productivity while promoting sustainable land use practices.

2.3 Fotos da tecnologia

2.5 País/região/locais onde a tecnologia foi aplicada e que estão cobertos nesta avaliação

2.6 Data da implementação

Indique o ano de implementação:

2020

2.7 Introdução da tecnologia

Especifique como a tecnologia foi introduzida:

• durante experiências/ pesquisa
• através de projetos/intervenções externas

Comentários (tipos de projeto, etc.):

The application of biochar for improving soil health and crop production was introduced in this region through the GIZ-funded program

3.1 Principal/principais finalidade(s) da tecnologia

• Melhora a produção
• Reduz, previne, recupera a degradação do solo
• Preserva ecossistema
• Atenuar a mudanças climáticas e seus impactos
• Criar impacto econômico benéfico

3.2 Tipo(s) atualizado(s) de uso da terra onde a tecnologia foi aplicada

Uso do solo misturado dentro da mesma unidade de terra:

Sim

Especificar o uso misto da terra (culturas/ pastoreio/ árvores):

• Agrofloresta

Comentários:

As per the district census handbook of Mandla District 2001, the land use pattern of Mandla District is: 61% - under forest area, 21% - cropped area, 5% - not available for cultivation, 7% - under fallow land, and 2% - cultivable area. The net area irrigated is 7% of the net area sown, which has hardly increased in recent times (~9%).

3.3 O uso do solo mudou devido à implementação da Tecnologia?

O uso do solo mudou devido à implementação da Tecnologia?

• Não (Continuar com a pergunta 3.4)

Comentários:

There has been no change in land use pattern due to project interventions.

3.4 Abastecimento de água

Abastecimento de água para a terra na qual a tecnologia é aplicada:

• Misto de precipitação natural-irrigado

Comentários:

Mandla has nearly 9% of its net sown area irrigated. The homestead land, where biochar is applied during the rabi season, has some irrigation from surface- or groundwater sources.

3.5 Grupo de GST ao qual pertence a tecnologia

• Agrofloresta
• Solo/cobertura vegetal melhorada
• Gestão integrada de fertilidade do solo

3.6 Medidas de GST contendo a tecnologia

Comentários:

The application of biochar in the field has improved the water-holding capacity of the soil along with enhanced microbial activities. This has resulted in better and long-duration vegetation as farmers are in position to cultivate vegetables throughout the year.

3.7 Principais tipos de degradação da terra abordados pela tecnologia

Comentários:

Biochar acts as soil amendment which helps in improving soil health and status of nutrients in the soil. Some studies have also suggested increase in soil organic carbon as a result of biochar application. Farmers in the project area were also advised to reduce the tillage practices to minimise the soil disturbance.

3.8 Redução, prevenção ou recuperação da degradação do solo

Especifique o objetivo da tecnologia em relação a degradação da terra:

• Prevenir degradação do solo
• Reduzir a degradação do solo

Comentários:

Prior to the application of biochar, farmers were applying synthetic fertilisers and pesticide which was degrading the land. The replacement of synthetic fertilisers with Biochar (also FYM and cow urine mixed with it) has prevented further soil degradation.

4.1 Desenho técnico da tecnologia

4.2 Informação geral em relação ao cálculo de entradas e custos

Especifique como custos e entradas foram calculados:

• por área de tecnologia

Outro/moeda nacional (especifique):

INR

Se for relevante, indique a taxa de câmbio do USD para moeda local (por exemplo, 1 USD = 79,9 Real): 1 USD =:

82,5

4.3 Atividades de implantação

	Atividade	Periodicidade (estação do ano)
1.	Purchase of Biochar Kiln Unit	Once in 4-5 years

Comentários:

Since it's a seasonal activity there are not many activities which can be categorised here.

4.4 Custos e entradas necessárias para a implantação

	Especifique a entrada	Unidade	Quantidade	Custos por unidade	Custos totais por entrada	% dos custos arcados pelos usuários da terra
Equipamento	Biochar Kiln unit	Number	1,0	9000,0	9000,0	10,0
Equipamento	Transportation	LS	1,0	2000,0	2000,0	10,0
Custos totais para a implantação da tecnologia					11000,0
Custos totais para o estabelecimento da Tecnologia em USD					133,33

Se o usuário da terra arca com menos que 100% dos custos, indique quem cobre os custos remanescentes:

Project has financially supported the local environment committes in purchase and setting up of the Biochar Kiln units

Comentários:

Biochar is prepared by a low-cost method:
1. Using Soil pit kiln - Human Labor cost is usually applied as no capital cost is involved in this method.
2. Using Portable Kiln - Its cost generally range from 12000 -14000 Rs if purchased from the ICAR institutions and their associated fabricators. Sometimes farmers also get it made from the local fabricators which cost Rs 4000-6000

Refer to the following Study: Biochar production from Lantana camara (invasive species);-

https://qcat.wocat.net/en/wocat/technologies/view/technologies_6690/

4.5 Atividades recorrentes/manutenção

	Atividade	Periodicidade/frequência
1.	Preparation of Biochar using the Lantana Camara	After the monsoon season (September)
2.	Preparing the biochar for application by mixing it with cow dung and cow urine	During Rabi Season (Oct-Nov)
3.	Application of Biochar in homestead land	During Rabi Season (Oct-Nov)

Comentários:

A low-cost method of biochar preparation (traditional soil pit or portable kiln method) is used for biochar preparation. Due to simplicity in design, barely any cost is involved in the maintenance of the unit.

4.6 Custos e entradas necessárias pata a manutenção/atividades recorrentes (por ano)

	Especifique a entrada	Unidade	Quantidade	Custos por unidade	Custos totais por entrada	% dos custos arcados pelos usuários da terra
Mão-de-obra	Transportation of biomass and its drying before biochar production	Person-day	2,0	200,0	400,0	100,0
Mão-de-obra	Preparation of Biochar by family members	Person-day	2,0	200,0	400,0	100,0
Mão-de-obra	Mixing biochar with cow dung and cow urine and making it ready for the application	Person-day	1,0	200,0	200,0	100,0
Mão-de-obra	Biochar Application	Person-day	1,0	200,0	200,0	100,0
Fertilizantes e biocidas	Biomass for Biochar production (Approximate)		1,0	500,0	500,0	100,0
Fertilizantes e biocidas	Cow dung	kg	20,0	5,0	100,0	100,0
Fertilizantes e biocidas	Cow urine	kg	20,0	5,0	100,0	100,0
Custos totais para a manutenção da tecnologia					1900,0
Custos totais de manutenção da Tecnologia em USD					23,03

Comentários:

A majority of the cost mentioned here is an opportunity cost for the farmers as they do manage all these expenses internally with available family labour and input materials such as cow dung, cow urine biomass etc.

4.7 Fatores mais importantes que afetam os custos

Descreva os fatores mais determinantes que afetam os custos:

The primary factor affecting the cost is the labor cost for applying biochar to the field and the easy availability of biomass/crop residues/Lantana for biochar production

5.1 Clima

5.2 Topografia

Indique se a tecnologia é aplicada especificamente em:

• Não relevante

Comentários e outras especificações sobre a topografia:

Mandla District is hilly and forested (Satpura hill range) and highly undulating with a narrow strip of cultivated plains in the valley portion of the river and rivulet. The plateau is in the northern part, formed by basalt and east-west trending hills in the southern part. The highest elevation is 934m ASL in the northern region, and the lowest elevation is around 400m ASL.

5.3 Solos

Caso disponível anexe a descrição completa do solo ou especifique as informações disponíveis, p. ex. tipo de solo, PH/acidez do solo, nitrogênio, capacidade de troca catiônica, salinidade, etc.

The soils in the area are generally clayey loam types with sandy loam soil in some areas. In the northern and central parts of the District, the undulating plateau with mounds is covered with slightly deep soil. Regarding the classification of ‘Soils of the World,’ the soils of Mandla are characterized as ‘brown earth.’ These types of soils have developed from granite gneiss and quartzite schist complexes.

5.4 Disponibilidade e qualidade de água

A salinidade da água é um problema?

Não

Ocorre inundação da área?

Não

Comentários e outras especificações sobre a qualidade e a quantidade da água:

The pre-monsoon groundwater level in the area ranges from 3 to 14 meters below ground level. (District at Glance, Mandla, Central Ground Water Board, 2013). The locations have a river flowing close to the area; however, access to the surface and sub-surface water is a primary concern. Basaltic lava flows of the Deccan trap underlie the Mandla District. All blocks of the district including project block Bichhiya are categorized as safe blocks. The net groundwater availability in the district is 53779 hectare meters (ham), and the groundwater draft for all uses is 8205 ham, making the Stage of Groundwater Development 15% as a whole for the district. The area's topography, soil, and geology do not let water remain for long durations, causing water scarcity in summer. The irrigation facilities are poor and limited to areas adjoining dams and canals.

5.5 Biodiversidade

Comentários e outras especificações sobre biodiversidade:

The area is surrounded by the Kanha National Park and Phen Wildlife Sanctuary, with a good presence of forest area. Thus biodiversity is outstanding. Ecological assessment report in Mandla (where this Technology is applied) showed improved biodiversity on common lands under village governance compared to open-access or commons under government ownership. On average, the Shannon diversity index (https://www.statology.org/shannon-diversity-index/) of managed common lands was 1.45 compared to 0.42 for the open access or ungoverned commons. Most of the sites under open access lands are infested by Lantana camara, which is the main reason for the lower biomass and diversity of the ungoverned grounds. More information about the biodiversity in Mandla can be read through the following link.

https://mpsbb.mp.gov.in/completedProject/MB.pdf

5.6 Características dos usuários da terra que utilizam a tecnologia

Indique outras características relevantes dos usuários da terra:

A large majority of the user belonging to the tribal community, including some households from an ethnic community called Baiga.

5.7 Área média de terrenos utilizados pelos usuários de terrenos que aplicam a Tecnologia

5.8 Propriedade de terra, direitos de uso da terra e de uso da água

Propriedade da terra:

• Comunitário/rural
• Indivíduo, intitulado

Direitos do uso da terra:

• Indivíduo

Direitos do uso da água:

• Comunitário (organizado)
• Indivíduo

Os direitos de uso da terra são baseados em um sistema jurídico tradicional?

Sim

Especifique:

The concerned authorities have issued landowners the land certificates.

5.9 Acesso a serviços e infraestrutura

Comentários:

Over the years, there has been a development focus from both the Government and other civil society organizations to bring out the facilities at the door of communities, which has improved access of different facilities.

6.1 Impactos no local mostrados pela tecnologia

Impactos socioeconômicos

Produção

Renda e custos

Impactos socioculturais

Impactos ecológicos

Solo

Biodiversidade: vegetação, animais

Clima e redução de riscos de desastre

Especificar a avaliação dos impactos no local (medidas):

All the indicated impact measures are based on discussions with farmers, implementing agencies and other stakeholders. These were reported as per their observations, eye estimations and approximation.

6.2 Impactos externos mostrados pela tecnologia

Especificar a avaliação dos impactos fora do local (medidas):

The scale of implementation is not large enough to have an ecosystem level impact

6.3 Exposição e sensibilidade da tecnologia às mudanças climáticas graduais e extremos/desastres relacionados ao clima (conforme o ponto de vista dos usuários da terra)

Mudança climática gradual

Mudança climática gradual

	Estação do ano	aumento ou diminuição	Como a tecnologia lida com isso?
Outras mudanças climáticas graduais	When biochar is added to soil, it can sequester carbon in the form of stable organic matter, which can remain in the soil for hundreds or even thousands of years. This carbon sequestration can help to reduce the amount of carbon dioxide in the atmosphere, thereby mitigating climate change.	redução/diminuição	bem

6.4 Análise do custo-benefício

Como os benefícios se comparam aos custos de implantação (do ponto de vista dos usuários da terra)?

Como os benefícios se comparam aos custos recorrentes/de manutenção(do ponto de vista dos usuários da terra)?

Comentários:

The benefits as indicated above are much higher than the cost involved. More importantly cost is too less as all the resources are being managed internally by the farmers.

6.5 Adoção da tecnologia

• 1-10%

Se disponível, determine a quantidade (número de unidades familiares e/ou área abordada):

More than 3000 farmers

6.7 Pontos fortes/vantagens/oportunidades da tecnologia

Pontos fortes/vantagens/oportunidades na visão do usuário da terra
Increase crop production
Improve the quality of farm produce
Improve soil water holding capacity

Pontos fortes/vantagens/oportunidades na visão do/a compilador/a ou de outra pessoa capacitada
Improved soil health
Mitigate climate change
Increase in soil nutrient content
Reduction in cost of inputs

6.8 Pontos fracos, desvantagens/riscos da tecnologia e formas de superá-los

Pontos fracos/desvantagens/riscos na visão do usuário da terra	Como eles podem ser superados?
Manual labor is required for the preparation of biochar	Innovating/adopting automation in biochar preparation
Decentralized preparation of biochar	Developing enterprise for selling cost-effective biochar in a localized manner

Pontos fracos/vantagens/riscos na visão do/a compilador/a ou de outra pessoa capacitada	Como eles podem ser superados?
Limited understanding of standardization of biochar quality and rate of application	Conducting more research studies and documenting experiences of farmers

7.1 Métodos/fontes de informação

7.2 Referências às publicações disponíveis

Título, autor, ano, ISBN:

Significance of biochar application to the environment and economy, Babalola Aisosa Onia,⁎, Olubukola Oziegbeb, Obembe O. Olawole

Disponível de onde? Custos?

https://doi.org/10.1016/j.aoas.2019.12.006

Título, autor, ano, ISBN:

Impacts of biochar application on upland agriculture: A review, Kumuduni Niroshika Palansooriyaa,1, Yong Sik Oka,1, Yasser Mahmoud Awada, Sang Soo Leeb, Jwa-Kyung Sungc, Agamemnon Koutsospyrosd, Deok Hyun Moone

Disponível de onde? Custos?

https://doi.org/10.1016/j.jenvman.2018.12.085

Título, autor, ano, ISBN:

The role of biochar and biochar-compost in improving soil quality and crop performance: A review, Getachew Agegnehua,⁎, A.K. Srivastavab, Michael I. Birda

Disponível de onde? Custos?

http://dx.doi.org/10.1016/j.apsoil.2017.06.008

Título, autor, ano, ISBN:

Biochar physicochemical properties: pyrolysis temperature and feedstock kind effects

Disponível de onde? Custos?

https://link.springer.com/article/10.1007/s11157-020-09523-3

7.3 Links para informações on-line relevantes

Título/ descrição:

District at glance - Mandla

URL:

http://cgwb.gov.in/District_Profile/MP/Mandla.pdf

Título/ descrição:

District Census Handbook Mandla

URL:

http://lsi.gov.in:8081/jspui/bitstream/123456789/2097/1/38136_2001_MAN.pdf