Discussion of Jatropha cultivation

Due to the positive impact of the issue Jatrophaanbaus learns a great deal of attention and support from the international development policy and the relevant local policy. In fact, the cultivation of jatropha many positive effects release of environmental, economic (and social) nature, but should not be any negative effects are neglected. For example, the argument, jatropha not stand in competition with the cultivation of food, of course not when the crop is sown on land which is suitable for the soil for the cultivation of food. An attractive purchase price for jatropha oil pushes for example, in some regions of Africa, many farmers to switch from food to Jatrophaanbau and thereby further contribute to local food shortages.

The plant is just like any other kind of vulnerable to pests and diseases, which can be particularly problematic in large monocultures. In addition, there is a wild plant with Jatropha, on the exact characteristics as regards crop optimization, revenue maximization, etc. still great need for research - scientific research on the breeding of seeds and plants is still far in the beginning.

The cultivation of land is not suitable for agriculture in the criticism, because there are also some of these areas conflicts with uses by the local population or nomadic communities. Such conflicts with established forms of extensive agriculture Amnesty International describes, for example, from regions of India.

The Swiss weekly newspaper Die (WOZ) analyzed the advantages and disadvantages. The meager yield per hectare and the high energy costs for fertilizer and processing of seeds can be the panacea appear doubtful. "You have to see it as a plant jatropha for local applications in miniature, for lamp oil, soaps and the like. Since it is very meaningful, "one scientist is quoted as saying. "But on an industrial scale, it can quickly go in an unintended direction."

In the European Union (EU), the share of biofuels in the years to be significantly expanded. To ensure sustainability in the production of biofuels have been adopted in 2009, accordingly, in conformity with EU Directive 2009/28/EC (Renewable Energy Sources Directive). By 2010 fully came into force biomass power Sustainability Ordinance (Bioster-NachV) and Biofuel Sustainability Ordinance (biofuels NachV), these requirements were implemented in German law. Criteria for environmental and climate impact, on social aspects and other things are included and are wrong at biofuel production, such as from Jatropha avoided. With certification systems for biomass, traceability of the origin including those from non-EU countries to ensure.

Source: http://de.wikipedia.org/wiki/Purgiernuss
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