1.2 参与该技术评估和文件编制的资源人员和机构的联系方式

有助于对技术进行记录/评估的项目名称（如相关）

OPtimal strategies to retAIN and re-use water and nutrients in small agricultural catchments across different soil-climatic regions in Europe (OPTAIN)

有助于对技术进行记录/评估的机构名称（如相关）

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

1.3 关于使用通过WOCAT记录的数据的条件

编制者和关键资源人员接受有关使用通过WOCAT记录数据的条件。:

是

1.5 参考关于SLM方法（使用WOCAT记录的SLM方法）的调查问卷

2.1 技术简介

技术定义:

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

2.2 技术的详细说明

说明:

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 技术照片

2.5 已应用该技术的、本评估所涵盖的国家/地区/地点

2.6 实施日期

如果不知道确切的年份，请说明大概的日期:

• 10-50年前

2.7 技术介绍

详细说明该技术是如何引入的:

• 在实验/研究期间

注释（项目类型等）:

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

3.2 应用该技术的当前土地利用类型

注释:

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

3.4 供水

该技术所应用土地的供水:

• 雨养

3.5 该技术所属的SLM组

• 最小的土壤扰动

3.6 包含该技术的可持续土地管理措施

3.7 该技术强调的主要土地退化类型

注释:

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 防止、减少或恢复土地退化

具体数量名该技术与土地退化有关的目标:

• 防止土地退化
• 减少土地退化

注释:

Main goals: prevention of land degradation

Secondary goals: mitigation / reduction of land degradation

4.1 该技术的技术图纸

4.2 有关投入和成本计算的一般信息

其它/国家货币（具体说明）:

Swiss Franc

如相关，注明美元与当地货币的汇率（例如1美元=79.9巴西雷亚尔）：1美元=:

1.08

4.3 技术建立活动

	活动	时间（季度）
1.	Buy a direct seeding machine

4.4 技术建立所需要的费用和投入

	对投入进行具体说明	单位	数量	单位成本	每项投入的总成本	土地使用者承担的成本%
设备	Direct seeding machine	Machine	1.0	278000.0	278000.0	100.0
技术建立所需总成本					278000.0
技术建立总成本，美元					257407.41

注释:

Duration of establishment phase: 0 month(s)

4.5 维护/经常性活动

	活动	时间/频率
1.	Appliance of total herbicide (glyphosat)	1 per growing period
2.	Seeding	1 per growing period
3.	spreading of snail poison	1-3 per growing period

4.6 维护/经常性活动所需要的费用和投入（每年）

	对投入进行具体说明	单位	数量	单位成本	每项投入的总成本	土地使用者承担的成本%
劳动力	Seeding	ha	1.0	185.0	185.0	100.0
劳动力	Spreading of snail poison	ha	1.0	46.0	46.0	100.0
肥料和杀菌剂	Biocides	ha	1.0	56.0	56.0	100.0
其它	Appliance of herbicide	ha	1.0	93.0	93.0	100.0
技术维护所需总成本					380.0
技术维护总成本，美元					351.85

注释:

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.

4.7 影响成本的最重要因素

描述影响成本的最决定性因素:

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

5.1 气候

5.2 地形

5.3 土壤

如有可能，附上完整的土壤描述或具体说明可用的信息，例如土壤类型、土壤酸碱度、阳离子交换能力、氮、盐度等。:

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 水资源可用性和质量

关于水质和水量的注释和进一步规范:

Availability of surface water: good, medium

5.5 生物多样性

5.6 应用该技术的土地使用者的特征

说明土地使用者的其他有关特征:

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 应用该技术的土地使用者使用的平均土地面积

5.8 土地所有权、土地使用权和水使用权

土地所有权:

• 个人，有命名

土地使用权:

• 租赁
• 个人

用水权:

• 社区（有组织）

注释:

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

5.9 进入服务和基础设施的通道

6.1 该技术的现场影响

社会经济效应

生产

水资源可用性和质量

收入和成本

社会文化影响

生态影响

水循环/径流

土壤

生物多样性:植被、动物

其它生态影响

6.2 该技术的场外影响已经显现

6.3 技术对渐变气候以及与气候相关的极端情况/灾害的暴露和敏感性（土地使用者认为的极端情况/灾害）

渐变气候

渐变气候

	季节	增加或减少	该技术是如何应对的？
年温度		增加	未知

气候有关的极端情况（灾害）

气象灾害

	该技术是如何应对的？
局地暴雨	好
局地风暴	未知

气候灾害

	该技术是如何应对的？
干旱	好

水文灾害

	该技术是如何应对的？
比较和缓的（河道）洪水	未知

其他气候相关的后果

其他气候相关的后果

	该技术是如何应对的？
缩短生长期	不好

6.4 成本效益分析

技术收益与技术建立成本相比如何（从土地使用者的角度看）？

技术收益与技术维护成本/经常性成本相比如何（从土地使用者的角度看）？

注释:

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

6.5 技术采用

在所有采用这项技术的人当中，有多少人是自发的，即未获得任何物质奖励/付款？:

• 11-50%

注释:

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 该技术的优点/长处/机会

土地使用者眼中的长处/优势/机会
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 技术的弱点/缺点/风险及其克服方法

土地使用者认为的弱点/缺点/风险	如何克服它们？
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.

编制者或其他关键资源人员认为的弱点/缺点/风险	如何克服它们？
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.

7.1 信息的方法/来源

7.2 参考可用出版物

标题、作者、年份、ISBN:

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

可以从哪里获得?成本如何?

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

7.3 链接到网络上的相关信息

标题/说明:

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