期刊名称：International Research Journal of Environmental Sciences
电子版ISSN：2319-1414
出版年度：2013
卷号：2
期号：9
页码：72-75
语种：English
出版社：International Science Community Association
摘要：Uttar Pradesh, India has more than 1.2 million hectares of salt affected soil. Out of which mostly are sodic soil. Gypsum, a chemical amendment for sodic soil is widely used for reclamation. This paper discusses application of Jatropha curcas for reclamation of sodic soil. Without applying any chemical amendment, Jatropha was planted on soil having an exchangeable sodium percentage (ESP) of 51 and pH 11.9. The result indicates that plantation of Jatropha reduces ESP, pH and Na significantly and increases soil organic carbon and exchangeable Ca. It could deduce that Jatropha mainly works upon the principle of increased CO partial pressure existing. The interaction of roots and micros, the respiration probably amplifies the solubility of calcites and improves soil physical properties because of the vertical growth of taproot. It is concluded that Jatropha is efficient for sodic soil reclamation but takes a longer duration, because plant requires time for stabilization. Presently, at partial reclamation, other crops can be planted along with Jatropha to diversify the waste land use.
