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All phases of oil exploitation, from the start of oil-drilling works to …


Biology Articles » Agriculture » Possibilities for the Use of Oil Contaminated Solids for Agricultural Purposes » Conclusion

Conclusion
- Possibilities for the Use of Oil Contaminated Solids for Agricultural Purposes

In the first year of research the degree of oil contamination of soil was crucial for yields achieved and all other investigated parameters. The largest number of plants was recorded with the check treatment; a signifi cantly smaller number of plants was recorded with treatments 4; 6; 7 and 8. This only confirms the presumption that the effect of increased soil contaminant is the most adverse in the emerging stage, which is when crops are established. The plants which emerged with delay will go through all stages of growth, but due to poorer establishment, yield shall be lower. During the second and the third year of research when winter barley and winter wheat respectively were sown in the pots no such signifi cant diff erences in crop establishment and yield achieved were recorded. Expectedly, the best results were recorded with the check soil treatment; crop establishment and yield achieved with others, oil contaminated treatments were barely statistically signifi cant.

When soybean (cultivar: Sabina) was planted, the best results were with check soil treatment, while crop establishment and yield achieved with other treatments were statistically lower than with the check treatment. The next year (cultivar Dora) crop establishment with all treatments was uniform and did not diff er statistically. Th ese investigations have been planned as a five-year research and its continuation shall help to clarify certain doubts.

It is not our intention to name any institution in particular; however, we think that all those that wish and those that should have as a goal to protect natural resources of Croatia could consider joining this research to help preserve our environment for generations to come.

rating: 1.00 from 1 votes | updated on: 31 Jul 2008 | views: 10420 |

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