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M. M. Lazarev 《Eurasian Soil Science》2006,39(12):1318-1322
The effect of shelterbelts on the annual water budget has been studied in dry steppes of the Northern Caucasus, the Volga region, and the central chernozemic zone. The average data show that the shelterbelts increase the precipitation by 22% and reduce the specific water uptake by cereals (per harvested grain unit) by 20%; the surface runoff is decreased by four-five times, and water evaporation from the soil surface without crops (beyond the growing period) is decreased by 34%. As a result, the annual water budget and water input into the soil increase by 3.5 times. 相似文献
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In the period from September to May, the decomposition of stubble by microorganisms was more active than that during the summer period. The mineralization of stubble of sweet clover, peas, and corn was more active than that of spring wheat, barley, oats, and winter rye. The root residues of the majority of the crops were decomposed slower than the stubble. The yield of the wheat depended on the amount of afterharvest residues, their chemical composition, and the rate of their mineralization. The increase in wheat yields as dependent on the input of the stubble remains of the precursors into the soil can be arranged in the following order: wheat, corn < rye, annual herbs < peas. 相似文献
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Eurasian Soil Science - The study of the elemental composition of labile humus substances passing into 0.1 M NaOH extract from typical chernozem under different cenoses indicated that, judging from... 相似文献
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Turov Yu. P. Guznyaeva M. Yu. Lazarev D. A. Petrova Yu. Yu. Zhdanova G. O. Stom D. I. 《Eurasian Soil Science》2022,55(6):830-839
Eurasian Soil Science - In the study of oil pollution of soils, various methods of analysis are used to assess the extent and degree of damage and to predict the consequences. However, because of... 相似文献
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Kholodov V. A. Yaroslavtseva N. V. Farkhodov Yu. R. Yashin M. A. Lazarev V. I. Iliyn B. S. Philippova O. I. Volikov A. B. Ivanov A. L. 《Eurasian Soil Science》2020,53(6):739-748
Eurasian Soil Science - The extractable fractions of organic matter (OM) differing in their mobility—water-extractable organic matter, labile humic substances, and humic substances—have... 相似文献
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E. V. Shein V. I. Lazarev A. Yu. Aidiev T. Sakunkonchak M. Ya. Kuznetsov E. Yu. Milanovskii D. D. Khaidapova 《Eurasian Soil Science》2011,44(10):1097-1103
The light clayey typical chernozems were studied on the fields of a long-term experiment on continuous fallowing performed by the Kursk Research Institute of Agroindustrial Production. The experiment was initiated in 1964. It includes the following variants: bare fallow, fallow with NPK application, fallow with manure application, idle land, and cropland under traditional cereal rotation. The fundamental physical properties of the chernozems, such as the particle-size distribution, the aggregate-size distribution, the water stability of the aggregates, the specific surface (as determined by the methods of the equilibrium desorption of water vapor and nitrogen), the mechanical stability of the air-dried aggregates, and the penetration resistance have not changed significantly under the impact of fertilizers and manure application. At the same time, reliable changes have taken place in the physicomechanical properties of the chernozem, including, in particular, the strength of the aggregates and the dependence of the penetration resistance on the water content. This attests to changes in the structural bonds between the soil particles under the impact of the fertilizers. An exponential equation describing the dependence of the penetration resistance on the soil’s water content in the range from the liquid limit to the plastic limit has been suggested. The analysis of the approximation parameters of this equation shows that the application of manure increases the dilatant characteristics of the chernozem and lowers its penetration resistance at the given water content. Reliably higher values of the penetration resistance have been found in the soil of the cropland, which may be related to the somewhat coarser soil texture in this experimental variant. 相似文献
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Kholodov V. A. Yaroslavtseva N. V. Yashin M. A. Farkhodov Yu. R. Ilyin B. S. Lazarev V. I. 《Eurasian Soil Science》2021,54(3):366-371
Eurasian Soil Science - Specific features in the content and accumulation of organic carbon and nitrogen in the aggregates of typical chernozems (Protocalcic Chernozems) of long-term experimental... 相似文献
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M. I. Erkenova I. I. Tolpeshta S. Ya. Trofimov R. S. Aptikaev A. S. Lazarev 《Eurasian Soil Science》2016,49(11):1310-1318
A field model experiment on stimulating the activity of native oil microorganisms–decomposers was performed on an oil-polluted area in a high-moor bog under its total flooding in the northern taiga (Western Siberia). For two summer months, the doses of lime and nitrogen, phosphorus, and potassium fertilizers applied have caused a decrease in the oil products (OP) content by 54% relative to their initial amount. The decrease of the OP content in the soil profiles was nonuniform, and at the depth of 30–50 cm it was accompanied by the acidification of peat. The stimulation of the activity of aboriginal microorganisms by applying lime and mineral fertilizers led to the development of migration processes with the participation of oil and products of its transformation. These processes differed from those in the soil without application of lime and fertilizers. An original technology of applying lime and fertilizers providing minimal disturbances the upper 50-cm peat layer is suggested. 相似文献