1.2 Coordonnées des personnes-ressources et des institutions impliquées dans l'évaluation et la documentation de la Technologie

Nom du projet qui a facilité la documentation/ l'évaluation de la Technologie (si pertinent)

Sustainable Soil Management Programme, Nepal (SSMP)

Nom du ou des institutions qui ont facilité la documentation/ l'évaluation de la Technologie (si pertinent)

Department of Agriculture, Soil Management Directorate, Hariharbhawan Lalitpur (doasoil) - Népal

Nom du ou des institutions qui ont facilité la documentation/ l'évaluation de la Technologie (si pertinent)

HELVETAS (Swiss Intercooperation)

1.3 Conditions relatives à l'utilisation par WOCAT des données documentées

Quand les données ont-elles été compilées (sur le terrain)?

07/11/2008

Le compilateur et la(les) personne(s) ressource(s) acceptent les conditions relatives à l'utilisation par WOCAT des données documentées:

Oui

1.5 Référence au(x) questionnaire(s) sur les Approches de GDT

2.1 Courte description de la Technologie

Définition de la Technologie:

Improving farmyard manure by protecting it from direct sunlight, rainfall, and runoff to reduce volatilisation and leaching

2.2 Description détaillée de la Technologie

Description:

Farmyard manure is the most common form of organic fertiliser applied to crops in the midhills of Nepal. Farmyard manure has a high proportion of organic material which nurtures soil organisms and is essential for maintaining an active soil life. Typically, only about half of the nutrient content of farmyard manure becomes available for crop growth during the first year after it is applied to the soil. The rest of the nutrients are channelled through soil biotic processes and are released in the following years. The high organic matter content and the more active soil life improve or maintain a friable soil structure, increase the cation exchange capacity, the water holding capacity, and the infiltration rate, and reducing the risk of soil pests.
Indigenous methods of preparing and using farmyard manure vary depending on the ecological zone, access to bedding material from crop or forest land and to crop residues and fodder, the availability of labour, and other factors. Traditionally, Nepali farmers take the manure out of their sheds to dry it for 2-3 days and then carry it to the field where it is left in small heaps for a number of days before being spread and incorporated into the soil.
Farmers rate the quality of manure according to which livestock species it comes from. These ratings have been confirmed by nutrient analysis as cattle manure (NPK%: 0.6, 0.13, 0.66) is considered to be better than buffalo manure (0.33, 0.25, 0.10), and horse manure; while pig (0.5, 0.18, 0.42), goat (0.6, 0.13, 0.99), and sheep manure (0.6, 0.13, 0.99) are considered better than cattle manure. Chicken manure (1.46, 0.51, 0.51) is considered the best of all.
It has however been shown that considerable nutrient losses occur if the manure is inappropriately handled or stored. Drying of the manure leads to loss of nutrients through volatilisation, and rainfall and runoff leads to leaching or washing out of nutrients. In addition, the common disposal of urine - the part of the excreta with the highest nutrient concentration - further reduces the level of nutrients in manure.
To reduce nutrient losses farmyard manure needs to be protected from direct sunlight; protected from rainfall or run-on; and protected from runoff. This can be achieved in a variety of ways using a variety of inputs. It is most important to protect the manure during storage and just before it is applied in the field to make the best use of this valuable local resource.

2.3 Photos de la Technologie

2.5 Pays/ région/ lieux où la Technologie a été appliquée et qui sont couverts par cette évaluation

3.1 Principal(aux) objectif(s) de la Technologie

• Improve manure

3.2 Type(s) actuel(s) d'utilisation des terres, là où la Technologie est appliquée

Commentaires:

Major land use problems (compiler’s opinion): Intensifying cultivation practices with either 1) inadequate application of fertilisers leading to a decline in soil
fertility and the mining of soil nutrients or 2) application of too much fertiliser causing environmental problems through
excessive leaching, and losses of fertiliser in surface runoff and consequent eutrophication or nitrification of streams,
ponds or groundwater

3.4 Groupe de GDT auquel appartient la Technologie

• gestion intégrée de la fertilité des sols

3.5 Diffusion de la Technologie

Spécifiez la diffusion de la Technologie:

• appliquée en des points spécifiques ou concentrée sur une petite surface

3.6 Mesures de GDT constituant la Technologie

3.7 Principaux types de dégradation des terres traités par la Technologie

3.8 Prévention, réduction de la dégradation ou réhabilitation des terres dégradées

Spécifiez l'objectif de la Technologie au regard de la dégradation des terres:

• réduire la dégradation des terres

4.1 Dessin technique de la Technologie

4.2 Spécification/ explications techniques du dessin technique

a) Covering the farmyard manure
with a roof made of tin sheet or plastic sheets. Cheaper
alternatives are:
- a thatched roof
- shading with creepers like
cucurbits
- planting broadleaf mustard
on the heap
- applying a covering of crop
residues or forest material
b) Farmyard manure is traditionally
carried to the fi elds in doko
baskets and left there in
unprotected heaps to be
incorporated often weeks and
sometimes several months later
(top and bottom left). It is much
better to incorporate it on the
day of transport as the longer it
is left out on the fi elds in heaps
the greater are the nutrient
losses from the heaps (bottom
right). Alternatively it can be
stored in a corner of the fi eld
covered with plastic sheets, crop
residues, or in some other way
(top right).

Technical knowledge required for field staff / advisors: low

Technical knowledge required for land users: low

Main technical functions: increase in organic matter, increase in soil fertility, increase in soil productivity

Secondary technical functions: increased infiltration rate and water holding capacity, improved soil physical properties (friability,easier soil preparation)

Layout change according to natural and human environment: protect farmyard manure; change application

4.3 Informations générales sur le calcul des intrants et des coûts

Indiquez la monnaie utilisée pour le calcul des coûts:

• dollars US

4.4 Activités de mise en place/ d'établissement

	Activité	Type de mesures	Calendrier
1.	Cover the farmyard manure heap or pit with any available material (crop residues, forest material, plastic sheet, thatched roof, zinc sheet, etc.)	Modes de gestion

4.5 Coûts et intrants nécessaires à la mise en place

	Spécifiez les intrants	Unité	Quantité	Coûts par unité	Coût total par intrant	% des coût supporté par les exploitants des terres
Main d'œuvre	Building manure pit and shelter	Persons/day	1,0	2,0	2,0	100,0
Matériaux de construction	Material	unit	1,0	25,0	25,0	100,0
Coût total de mise en place de la Technologie					27,0

4.6 Activités d'entretien/ récurrentes

	Activité	Type de mesures	Calendrier/ fréquence
1.	Pour household wastewater onto the heap or pit to keep the farmyard	Modes de gestion

4.7 Coûts et intrants nécessaires aux activités d'entretien/ récurrentes (par an)

Commentaires:

Cost as in January 2007

5.1 Climat

5.2 Topographie

Commentaires et précisions supplémentaires sur la topographie:

Slopes on average: Also moderate (6-10%), rolling (11-15%) and hilly (16-30%)

Landforms: Also footslopes

Altitudinal zone: Also 1000-1500 m a.s.l., 1500-2000 m a.s.l. and 2000-2500 m a.s.l.

5.6 Caractéristiques des exploitants des terres appliquant la Technologie

Indiquez toute autre caractéristique pertinente des exploitants des terres:

Off-farm income specification: In most farm households, off-farm income plays at least a minor and increasingly a major role. Occasional opportunities for off-farm income present themselves in the form of daily labour wages. Some households’ members receive regular salaries, whilst an increasing number of Nepalis are working in India, the Middle East, Malaysia, and elsewhere and sending remittance incomes home.

Market orientation of production system: Also commercial/ market

5.7 Superficie moyenne des terres détenues ou louées par les exploitants appliquant la Technologie

5.8 Propriété foncière, droits d’utilisation des terres et de l'eau

Propriété foncière:

• individu, sans titre de propriété
• individu, avec titre de propriété

Droits d’utilisation des terres:

• loué
• individuel

Commentaires:

Sharecropping between owner and tenant

6.1 Impacts sur site que la Technologie a montrés

Impacts socio-économiques

Production

Revenus et coûts

Impacts écologiques

Autres impacts écologiques

6.2 Impacts hors site que la Technologie a montrés

6.4 Analyse coûts-bénéfices

Quels sont les bénéfices comparativement aux coûts de mise en place (du point de vue des exploitants des terres)?

Quels sont les bénéfices comparativement aux coûts d'entretien récurrents (du point de vue des exploitants des terres)?

Commentaires:

Large short- and long-term benefits due to need to use less of the costly mineral fertilisers. The only extra ‘cost’ is the extra labor needed.

6.5 Adoption de la Technologie

Commentaires:

Comments on acceptance with external material support: An independent assessment found that 95% of the farmers participating in SSMP’s farmyard improvement activities were accepted the technology.

Comments on adoption trend: About 70% of non-participant farmers who had come into contact with the technologies had also adopted them.

6.7 Points forts/ avantages/ possibilités de la Technologie

Points forts/ avantages/ possibilités du point de vue du compilateur ou d'une autre personne ressource clé
The use of improved farmyard manure reduced the need for mineral fertiliser thereby reducing production costs and outside dependency How can they be sustained / enhanced? Further promotion of the technology will increase this impact
A simple technology affordable by poor farmers in remote areas far from a roadhead
The increased use of organic fertiliser improves the physical characteristics of soil making ploughing easier and increasing water holding capacity of the soil

6.8 Faiblesses/ inconvénients/ risques de la Technologie et moyens de les surmonter

Faiblesses/ inconvénients/ risques du point de vue du compilateur ou d'une autre personne ressource clé	Comment peuvent-ils être surmontés?
Cost of a permanent roof for the manure heap may hinder adoption of the technology	Promote simple alternatives to high cost roofs such as straw cover, cover with broad leaf mustard, thatch, and waste plastic

7.2 Références des publications disponibles

Titre, auteur, année, ISBN:

STSS; SSMP (2001) Farmyard Manure and Compost Management (in Nepali) Kathmandu: Soil Testing Services Section, Department of Agriculture and Sustainable Soil Management Programme

Disponible à partir d'où? Coût?

SSMP