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Publications (12)
During the period 2020-2023 field experiments have been carried out -of soil type Leached Smolnitsa (Haplic Vertisol) in the experimental station of ISSAP “N. Poushkarov”, the town of Bozhurishte, Sofia region. The aim of this study is to identify the impact of two rates of nitrogen-phosphorus mineral fertilization, nonfertilizer variant and two so...
The objective of this study was to determine the most appropriate pedotransfer functions for the soil bulk density prediction in depth for virgin and arable soils. The statistical analyses were performed on datasets containing 578 records for the soil bulk density, soil texture fractions, humus/SOC and carbonate contents at different soil depths fr...
Climate change is known to subject the functioning of agroecosystems to high levels of biotic and abiotic stress and has a significant impact on agricultural production worldwide. Crop rotation is believed to be one way of adapting agriculture to climate change compared to monoculture This study aimed to examine the maize-wheat rotation impact on s...
Abstract
Crop rotation is the main factor in reducing losses caused by weeds, diseases, and pests and increasing yields, which has been used little in recent years in intensive agriculture. The study aimed to estimate the influence of two rates of nitrogen-phosphorus mineral fertilization on the yield of maize grown in a four-year cycle crop rotati...
The paper deals with soil properties characterized the intrinsic peculiarity of studied Chromic Cambisols from the Upper Thracian Lowland, in the Southern Bulgaria. To fulfill the aim, a systematic survey and sampling have been carried out on the terrain with conventional and organic systems of farming. Soil physical, chemical and physicochemical p...
The paper deals with statistical analyses of data on soil properties of Pellic Vertisols selected from the eastern as well western part of the Upper Thracian Lowland, in Southern Bulgaria. Based on the survey in 2019, 2020 and 2021 at conventional and organic farming the data was processed using the statistical package Statgraphics (Anova). Soil te...
Petkova, Z., Nenova, L., Simeonova, Ts., Benkova, M., Nenov, M., Gerassimova, I., Katsarova, A., Atanassova, I. & Harizanova, M. (2021). Effect of different fertilizer rates on some quantitative parameters of maize in a pot experiment with alluvial-meadow soil. Bulg. J. Agri. Sci., 27 (5), 948-953 The aim of the present study was to evaluate the ef...
Study of spatial and temporal variation of soil organic carbon depending on it distribution on field and in soil profile by drip irrigation on sandy soil. A network of sampling points was created using GPS equipment. Subsequent processing of obtained results using geostatistical methods was effectuated. Kriging maps with the distribution of organic...
Purpose
The purpose of this study was the investigation of sediment provenance and soil formation processes within a Mediterranean watershed (Koiliaris CZO in Greece) with particular emphasis on natural and manmade terraces.
Material and methods
Five sites (K1–K5) were excavated and analyzed for their pedology (profile description), geochemistry...
Soil water retention is of primary importance for majority of soil functions. The characteristics derived from Soil
Water Retention Curve (SWRC) are directly related to soil structure and soil water regime and can be used as
indicators for soil physical quality. The aim of this study is to present some parameters and relationships based
on the SWRC...
The paper includes results of joint aeroplane remote sensing and synchronous ground-based studies for estimation of the state of the system "soilplant-surface air layer" on the agricultural areas for management of agricultural activities on the field. The methods of study include expedition trace flights of an aeroplane-laboratory along several rou...
The study presents results on the informativity and spatial variation of soil aggregation characteristics in one of the Critical Zone Observatories (CZO) in Europe – Fuchsenbigl, Austria. Water stable aggregates of different size were measured, and strong relationships between soil aggregation estimates were found. The horizontal variation of water...
