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/评估的机构名称（如相关）

ICIMOD International Centre for Integrated Mountain Development (ICIMOD) - 尼泊尔

有助于对技术进行记录/评估的机构名称（如相关）

iDE Nepal (iDE Nepal) - 尼泊尔

1.3 关于使用通过WOCAT记录的数据的条件

（现场）数据是什么时候汇编的？:

01/03/2013

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 请参阅有关SLM方法的问卷

2.1 技术简介

技术定义:

Cleft grafting can be used to produce plants that are resistant to a number of pests and diseases and are often higher yielding than the original. Tomato seedlings can be easily grafted onto resistant root stock of the wild eggplant (Solanum sysimbrifolium) to produce a disease-resistant and commercially viable crop.

2.2 技术的详细说明

说明:

Some of Nepal's most lucrative vegetable cash crops, especially solanaceous crops such as tomato and eggplant, are particularly susceptible to attack by the root knot nematode, Meliodogyne spp, which costs Nepal's farmers millions of rupees in losses annually. In recent years, farmers found that this pest was becoming prevalent and that they could not control it permanently using either cheap or eco-friendly solutions. Researchers and development officers took up the challenge and found that grafting technology could successfully control not only the root knot nematode but also wilting disease. As a bonus, they also found that grafting can increase the yield potential of the plants and improve the overall productivity of the land.

Establishment / maintenance activities and inputs: Loam and silt loam soils with a pH of 6.0–7.0 are the most suitable for this type of cultivation. Grafting technology requires two plants: the scion and the rootstock. The scion is a detached shoot or twig containing buds from the desired woody plant. The rootstock is a plant with an established healthy root system, onto which a cutting or a bud from another plant is grafted. The scion seedlings are grown in raised solarized nursery beds, where care has been taken to see that the soil has been sterilised and all soil pests have been destroyed. Robust rootstock of wild eggplant (Solanum sysimbrifolium) is appropriate for tomato propagation. The rootstock seedlings are grown in multi cell trays and transplanted when they are 20–25 cm high and have a few leaves and a pencil thick stalk. Seeds for the rootstock seedlings are sown in March/April and are ready in 6–8 weeks; scion seeds are sown in April/May and are ready for grafting in 3–4 weeks. Both scion and rootstock plants should have achieved similar stalk thicknesses at the time of grafting. Cleft grafting is carried out and the grafted seedlings kept in polypots in a closed polyhouse for 7–10 days. Then the grafted seedlings are carefully transplanted to their permanent location. The grafted plants are watered the day after they are transplanted; the extent of watering depends on how moist the soil is and on local weather conditions. The field is mulched throughout the cropping period using straw and other farm biomass materials.

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

2.7 技术介绍

详细说明该技术是如何引入的:

• 通过项目/外部干预

3.1 该技术的主要目的

• 改良生产

3.2 应用该技术的当前土地利用类型

注释:

Major land use problems (compiler’s opinion): Insufficient water for irrigation, the soil is acidic, vegetable crops are attacked by pests and crop production is in decline.

3.3 有关土地利用的更多信息

该技术所应用土地的供水:

• 雨养

3.4 该技术所属的SLM组

• 病虫害综合管理（包括有机农业）
• 改良植物品种/动物品种

3.5 技术传播

具体说明该技术的分布:

• 均匀地分布在一个区域

如果该技术均匀地分布在一个区域上，请注明覆盖的大致区域。:

• < 0.1 平方千米（10 公顷）

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 causes of degradation: soil management, other human induced causes (specify) (Overuse of chemical Fertilizer), droughts

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

4.1 该技术的技术图纸

4.2 技术规范/技术图纸说明

Schematic diagram of a tomato scion grafted on to the rootstock of a wild eggplant.

Technical knowledge required for field staff / advisors: high

Main technical functions: Reduce Pest Attack, Improve crop production

4.3 有关投入和成本计算的一般信息

其它/国家货币（具体说明）:

NPR

注明美元与当地货币的汇率(如相关):1美元=:

72.0

4.4 技术建立活动

	活动	措施类型	时间
1.	Prepare the land	农业学的
2.	Prepare Scions	农业学的
3.	Prepare rootstock	农业学的
4.	Grafting	农业学的
5.	Transplant grafted Seedling	农业学的

4.5 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%
劳动力	Prepare the land	persons/day	5.0	4.2	21.0	100.0
设备	Tools	unit	1.0	22.0	22.0	100.0
植物材料	Seeds	unit	1.0	28.0	28.0	100.0
肥料和杀菌剂	Fertilizer	unit	1.0	17.0	17.0	100.0
肥料和杀菌剂	Compost/manure	unit	1.0	65.0	65.0	100.0
肥料和杀菌剂	Pesticide	unit	1.0	21.0	21.0	100.0
肥料和杀菌剂	Plant tonic	unit	1.0	7.0	7.0	100.0
施工材料	Polypot,grafting chamber etc	unit	1.0	225.0	225.0	100.0
技术建立所需总成本					406.0

4.6 维护/经常性活动

	活动	措施类型	时间/频率
1.	Both scion and rootstock seeds are watered after sowing. The seedlings are monitored and watered as needed. (Overall labor: 16 person days)	农业学的
2.	After transplanting, the grafted seedlings are watered the next day and twice weekly thereafter. As the plantlets mature, they are watered at 10-day intervals and the surface of the soil is mulched. The moisture level in the soil is monitored throughout the cropping period.	农业学的
3.	Top dressing with biofertilizers (N, P, K, and vesicular arbuscular mycorrhiza VAM) and bio-hume is applied to the root zone.	农业学的

4.7 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	Watering scion and rootstock	persons/day	16.0	4.25	68.0	100.0
设备	Electricity and water charger	unit	1.0	8.5	8.5	100.0
植物材料	Seeds	unit	1.0	68.0	68.0	100.0
技术维护所需总成本					144.5

注释:

Machinery/ tools: spade, scissors, sharp scalpel, multi cell tray, hoe, plough

4.8 影响成本的最重要因素

描述影响成本的最决定性因素:

All costs and amounts are rough estimates by the technicians and authors.

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 fertility is high

Soil drainage / infiltration is good

Soil water storage capacity is medium

5.4 水资源可用性和质量

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:

Population density: 200-500 persons/km2

Annual population growth: 0.5% - 1%

Relative level of wealth: rich, average, poor

20% of the land users are rich.
30% of the land users are average wealthy.
50% of the land users are poor.

5.7 应用该技术的土地使用者拥有或租用的平均土地面积

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:

• 个人

用水权:

• 社区（有组织）

6.1 该技术的现场影响

社会经济效应

生产

收入和成本

社会文化影响

生态影响

生物多样性:植被、动物

其它生态影响

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	气候变化/极端天气的类型	该技术是如何应对的？
年温度		增加	不好

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

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）？

6.5 技术采用

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

• 90-100%

注释:

There is a strong trend towards spontaneous adoption of the Technology

Comments on adoption trend: Most (90%) of the farmers are implementing the technology voluntarily and there is a spontaneous trend for adoption. In the area studied, about 20–30 households per year are adopting this technology.

6.7 该技术的优点/长处/机会

编制者或其他关键资源人员认为的长处/优势/机会
The technology is highly effective at controlling pests and disease. How can they be sustained / enhanced? The wild eggplant rootstocks are somewhat difficult to graft because they are spiny. Spine-free rootstock seedlings would be easier to graft.
The grafted seedlings themselves are a good source of income for farmers. How can they be sustained / enhanced? Create awareness among farmers and encourage nurseries to provide grafted seedlings. Support farmers during the start-up stage.

6.8 技术的弱点/缺点/风险及其克服方法

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？
Grafting is time consuming and difficult because wild eggplant rootstock plants are spiny.	Need more research to identify other possible rootstock plants.
Grafting can be expensive and requires an initial investment in training; specialized materials are needed. Technically demanding, needs practise. Specialized materials are difficult to get.	Nurseries need to be supported and need to have access to specialized materials on time.