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34. Statistical analysis of some soil parameters from Luvisoils in the region of Stara Zagora
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35. Content of the heavy metals copper and zinc in Akmolinskoj district of Northern Kazakhstan in relation to zero- and traditional growing technology of grain-legume crops
Author: Asiya Ansabaeva, Nurlan Serekpaev, Vladislav Popov
36. Estimate of the soils in the region of Saedinenie – the district of Plovdiv for rice growing
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