1.2 Contact details of resource persons and institutions involved in the assessment and documentation of the Technology

Name of the institution(s) which facilitated the documentation/ evaluation of the Technology (if relevant)

CDE Centre for Development and Environment (CDE Centre for Development and Environment) - Switzerland

1.3 Conditions regarding the use of data documented through WOCAT

When were the data compiled (in the field)?

24/09/2008

The compiler and key resource person(s) accept the conditions regarding the use of data documented through WOCAT:

Yes

1.5 Reference to Questionnaire(s) on SLM Approaches

2.1 Short description of the Technology

Definition of the Technology:

A cropping system which allows to plant the seeds directly into the soil without ploughing. The soil is covered with plant remainders.

2.2 Detailed description of the Technology

Description:

The farm portaited is located in a hilly area near Bern. It is cooperating with an other farm of the village so that in total 32 ha of arable land are cultivated. All crops except for potatoes and sugar beets are produced within the no-tillage system. So the area cultivated with the no-tillage system is about 26 ha. The farm is producing mainly fodder (maize, wheat) for pigs. Beside this potatoes and sugar beets are produced to be sold. A typical crop rotation consists of a root crop, followed by a winter grain and a green manure. There are major meadows, too.

No-tillage characterizes a cultivation system without ploughing or any other reworking of the soil. After the previous crop (Maize, grain) has been harvested, a total herbicide is applied and the seeds are brought directly into the soil with a special machine. A metal disk carves a narrow slit into the surface. Then the seeds are brought into the soil pneumatically. Finally, the slit is closed again by two wheels pressing on the surface.

The no-tillage system is used to reduce soil degradation, especially erosion. It enables a permanent cover of the soil surface, which reduces sealing and crusting. Since they are not disturbed by ploughing anymore, there are more earthworms in the soil. Their activity can slowly reduce compaction and improve the soil structure. This leads to better infiltration rates and also to a higher water storage capacity. Less water remains on the soil surface, so soil loss can be reduced.

The no-tillage system requires a special direct seeding machine. This machine is very expensive, so most farmers don’t buy it on their own but task a contractor with the seeding. On the other hand, certain machines from conventional agriculture are not needed anymore (plough, harrow, rotary tiller etc.). Furthermore, working hours and fuel can be saved. In some cantons of switzerland no-tillage agriculture is also subsidised. For this reason, the method holds economic advantages, too.

In the beginning crop yield may be reduced by up to 10%. The rebuilding of the soil structure requires a certain time, depending on the state of the soil at the time of transition. However, this was not the case for the farm portaited here: Already in the first year there were very good crop yields, although the probability for crop loss is higher in the no-tillage system. Competition between the crops and weeds can be too strong if the total herbicide is applied under wet conditions. In addition drying of the soil in spring is often delayed. Thus the plants may face too wet conditions.

2.3 Photos of the Technology

2.5 Country/ region/ locations where the Technology has been applied and which are covered by this assessment

2.6 Date of implementation

If precise year is not known, indicate approximate date:

• 10-50 years ago

2.7 Introduction of the Technology

Specify how the Technology was introduced:

• during experiments/ research

Comments (type of project, etc.):

modern direct seeding was developed since the 1950s after the development of modern herbicides.

3.2 Current land use type(s) where the Technology is applied

Comments:

Major land use problems (land users’ perception): Soil erosion, soil compaction at different dephts

Future (final) land use (after implementation of SLM Technology): Cropland: Ca: Annual cropping

If land use has changed due to the implementation of the Technology, indicate land use before implementation of the Technology:

Cropland: Ca: Annual cropping

3.3 Further information about land use

Water supply for the land on which the Technology is applied:

• rainfed

Number of growing seasons per year:

• 2

Specify:

Longest growing period in days: 230Longest growing period from month to month: Mar - OctSecond longest growing period in days: 300Second longest growing period from month to month: Nov - Aug

3.4 SLM group to which the Technology belongs

• minimal soil disturbance

3.5 Spread of the Technology

Comments:

Total area covered by the SLM Technology is 0.26 m2.

The farm owns 0.27 km2. For reasons of rationalization it is working together with another farm. Together they have 0.32 km2. On 0.26 km2 direct seeding is applied.

3.6 SLM measures comprising the Technology

3.7 Main types of land degradation addressed by the Technology

Comments:

Main type of degradation addressed: Wt: loss of topsoil / surface erosion, Bc: reduction of vegetation cover, Bl: loss of soil life

Secondary types of degradation addressed: Pc: compaction

Main causes of degradation: crop management (annual, perennial, tree/shrub) (unprotected soil surface in conventional agriculture), Heavy / extreme rainfall (intensity/amounts), education, access to knowledge and support services (Tradition. In general ploughing is not questioned.)

3.8 Prevention, reduction, or restoration of land degradation

Specify the goal of the Technology with regard to land degradation:

• prevent land degradation
• reduce land degradation

Comments:

Main goals: prevention of land degradation

Secondary goals: mitigation / reduction of land degradation

4.2 Technical specifications/ explanations of technical drawing

Technical knowledge required for field staff / advisors: high (the correct timing of activities is difficult to achieve. The current weather situation has a great influence.)

Technical knowledge required for land users: high (crop rotation needs to be adjusted)

Main technical functions: control of raindrop splash, improvement of ground cover, improvement of surface structure (crusting, sealing)

Secondary technical functions: improvement of topsoil structure (compaction), improvement of subsoil structure (hardpan), stabilisation of soil (eg by tree roots against land slides), increase in organic matter, increase of infiltration, increase / maintain water stored in soil

Better crop cover
Remarks: precedent crop remains on the soil

Retaining more vegetation cover
Remarks: precedent crop remains on the soilprecedent crop remains on the soil

Green manure
Remarks: no change compared to conventional agriculture

Manure / compost / residues
Material/ species: liquid pig manure
Remarks: no change compared to conventional agriculture

Mineral (inorganic) fertilizers
Remarks: no change compared to conventional agriculture

Rotations / fallows
Remarks: new crop rotation is needed

Zero tillage / no-till
Remarks: all crops except potatoes and sugar beets, where mulching is applied

4.3 General information regarding the calculation of inputs and costs

other/ national currency (specify):

Swiss Franc

Indicate exchange rate from USD to local currency (if relevant): 1 USD =:

1.08

4.4 Establishment activities

	Activity	Type of measure	Timing
1.	Buy a direct seeding machine	Agronomic

4.5 Costs and inputs needed for establishment

	Specify input	Unit	Quantity	Costs per Unit	Total costs per input	% of costs borne by land users
Equipment	Direct seeding machine	Machine	1.0	278000.0	278000.0	100.0
Total costs for establishment of the Technology					278000.0

Comments:

Duration of establishment phase: 0 month(s)

4.6 Maintenance/ recurrent activities

	Activity	Type of measure	Timing/ frequency
1.	Appliance of total herbicide (glyphosat)	Agronomic	1 per growing period
2.	Seeding	Agronomic	1 per growing period
3.	spreading of snail poison	Agronomic	1-3 per growing period

4.7 Costs and inputs needed for maintenance/ recurrent activities (per year)

	Specify input	Unit	Quantity	Costs per Unit	Total costs per input	% of costs borne by land users
Labour	Seeding	ha	1.0	185.0	185.0	100.0
Labour	Spreading of snail poison	ha	1.0	46.0	46.0	100.0
Fertilizers and biocides	Biocides	ha	1.0	56.0	56.0	100.0
Other	Appliance of herbicide	ha	1.0	93.0	93.0	100.0
Other
Total costs for maintenance of the Technology					380.0

Comments:

New direct seeding machines usually cost $45'000. The farmer portraited bought a second hand machine for $27800. To calculate the costs it was assumed that all work is outsorced to a contracter (which is not usually the case). One growing period per year was assumed, in reality it 1-2. Worksteps which are the same in direct seeding and conventional agriculture were not included. The following worksteps are additional to conventional agriculture (working hours, costs): Appliance of total herbicide ((0.75h, $149), direct seeding (0.5h, $185), spreading of snail poison (0.5h, $83). The following steps are not needed anymore: ploughing (2.5h, $260), harrowing (1.25h, $185), conventional seeding (1h, $102). So in total about 3.75h and $130 can be saved per ha and growing period. Besides this, direct seeding is subsidised in the Canton Bern. The subsidies sum up to $250-$500 per ha and year for a period of 5 years. These subsidies are an important reason for the growing popularity of conservation agriculture in Switzerland. The most important income source for Swiss farmers are direct subsidies, which are about $1400 per ha and year. To get these subsidies, farmers have to fulfill ecological criteria.

4.8 Most important factors affecting the costs

Describe the most determinate factors affecting the costs:

The most important factor is whether a direct seeding machine can be rented in locally, because this represents a major investment.

5.1 Climate

5.2 Topography

5.3 Soils

If available, attach full soil description or specify the available information, e.g. soil type, soil PH/ acidity, Cation Exchange Capacity, nitrogen, salinity etc.

Soil texture is medium (loamy/silty and sandy)
Soil fertility is high
Soil drainage/infiltration is good
Soil water storage capacity is high

5.4 Water availability and quality

Comments and further specifications on water quality and quantity:

Availability of surface water: good, medium

5.5 Biodiversity

5.6 Characteristics of land users applying the Technology

Indicate other relevant characteristics of the land users:

Land users applying the Technology are mainly common / average land users

Difference in the involvement of women and men: In Switzerland there are mostly men who apply the technology. However, the decision making usually takes place at the household level, including both men and women.

Population density: 50-100 persons/km2

Annual population growth: negative

Off-farm income specification: Many farmers in Switzerland have significant off farm income. But this seems to be independent of the technology applied.

5.7 Average area of land owned or leased by land users applying the Technology

5.8 Land ownership, land use rights, and water use rights

Land ownership:

• individual, titled

Land use rights:

• leased
• individual

Water use rights:

• communal (organized)

Comments:

Population growth in Switzerland is about 0.6% per year. In the commune discussed here it's about -0.6%.

5.9 Access to services and infrastructure

6.1 On-site impacts the Technology has shown

Socio-economic impacts

Production

Water availability and quality

Income and costs

Socio-cultural impacts

Ecological impacts

Water cycle/ runoff

Soil

Biodiversity: vegetation, animals

Other ecological impacts

6.2 Off-site impacts the Technology has shown

6.3 Exposure and sensitivity of the Technology to gradual climate change and climate-related extremes/ disasters (as perceived by land users)

Gradual climate change

Gradual climate change

	Season	Type of climatic change/ extreme	How does the Technology cope with it?
annual temperature		increase	not known

Climate-related extremes (disasters)

Meteorological disasters

	How does the Technology cope with it?
local rainstorm	well
local windstorm	not known

Climatological disasters

	How does the Technology cope with it?
drought	well

Hydrological disasters

	How does the Technology cope with it?
general (river) flood	not known

Other climate-related consequences

Other climate-related consequences

	How does the Technology cope with it?
reduced growing period	not well

6.4 Cost-benefit analysis

How do the benefits compare with the establishment costs (from land users’ perspective)?

How do the benefits compare with the maintenance/ recurrent costs (from land users' perspective)?

Comments:

In this case study, the farmer bought a direct seeding machine on his own. This is why short-term returns are negative.

6.5 Adoption of the Technology

Of all those who have adopted the Technology, how many have did so spontaneously, i.e. without receiving any material incentives/ payments?

• 10-50%

Comments:

80% of land user families have adopted the Technology with external material support

Comments on acceptance with external material support: There is the possibility to get subsidies during the first 5 years of appliance. But resources are limited and therefore not everybody gets them.

20% of land user families have adopted the Technology without any external material support

There is a moderate trend towards spontaneous adoption of the Technology

Comments on adoption trend: The total area of conservation agriculture is small in Switzerland. But growing rates are quite high.

6.7 Strengths/ advantages/ opportunities of the Technology

Strengths/ advantages/ opportunities in the land user’s view
Soil erosion is greatly reduced. How can they be sustained / enhanced? For crops which are not tolerant to direct seeding, other soil conservation techniques should be applied.
The risk of soil compaction is reduced. How can they be sustained / enhanced? Heavy machinery should only be used under dry conditions.
Soil structure is improved due to more earthworms. How can they be sustained / enhanced? Enough organic material needs to be available.
Working hours and fuel consumption is highly reduced, since no reworking of the soil is needed anymore. How can they be sustained / enhanced? The time saved should be used to enhance production.

6.8 Weaknesses/ disadvantages/ risks of the Technology and ways of overcoming them

Weaknesses/ disadvantages/ risks in the land user’s view	How can they be overcome?
Direct seeding machines are very expensive and the second hand market is not well developed yet.	Contractors can be tasked with the seeding or the investments can be shared.
The risk of crop failure is enhanced.	Very good planning of crop rotation. The date of sowings should be chosen carefully. Crops should be checked for snails regularly.

Weaknesses/ disadvantages/ risks in the compiler’s or other key resource person’s view	How can they be overcome?
Worldwide application of glyphosate could possibly lead to resistant weeds.	With an adequate crop rotation and good timing of the worksteps glyphosate is not needed sometimes.
The public is very sensitive towards the application of chemical substances. In contrast, the broader public is not familiar with the advantages of conservation agriculture.	Scientific knowledge should be adressed to a broader public.

7.2 References to available publications

Title, author, year, ISBN:

Wirz Handbuch. Betrieb und Familie. Für das landwirtschaftliche Unternehmen. LBL Lindau. 112 Jahrgang. Wirz Verlag Basel.2006.

Available from where? Costs?

Tel: +41 61 264 64 50CHF 22.-

7.3 Links to relevant information which is available online

Title/ description:

Sturny et al. Direktsaat und Pflug im Systemvergleich – Eine Synthese. AGRARForschung 14 (8): 332-337. 2007.

URL:

http://www.vol.be.ch/site/lanat-3155-syntheseartikel.pdf