Articles by keyword
Articles:
- Investigation of the productivity of maize depending on agro-ecological conditions and applied agrotechnics
Nikolay Traykov, Rositsa Toncheva, Ivan Dimitrov
2017-08-23 - Agrochemical Valuation of Different Subtypes Chernozem and Fertilization Optimization of Basic Crops
I. Valchovski, Z. Petkova, V. Kutev, H. Pchelarova, E. Markov, A. Katsarova
2017-02-13 - Investigation of W-Furrow Technology for Cultivation of Maize
R. Todorov
2017-03-07
Volume 51, No 1, 2017
Volume 48, No 3-4, 2014
Volume 47, No 4, 2013
- A. solani (1)
- abiotic factors (1)
- absolutely dry matter (1)
- acid shallow soils (1)
- acidity (1)
- actinomycetes (1)
- actual erosion risk (2)
- actualization (1)
- after-effect of starting temperature (1)
- aggregates (1)
- agricultural soils (1)
- agro-climatic characteristics (1)
- agro-climatic regions (1)
- agro-ecological areas (1)
- agro-ecological conditions (1)
- agro-environment potential (1)
- agrochemical grouping of soils (1)
- agrochemical properties (1)
- agroclimatic potential (1)
- agroecological assessment (1)
- agroecological regions (1)
- agroecosystem (1)
- agrosoil groups (1)
- agrotechnical measures (1)
- air pollution (1)
- alfalfa (3)
- alpine environment (1)
- and fertilization effect (1)
- anions (1)
- annual sum of precipitation (1)
- antagonism (1)
- anthropogenic degradation (1)
- anthropogenic load of soil (1)
- apple (1)
- apple scab (1)
- Arenosols (2)
- As (1)
- Asa River (1)
- ascorbic acid (1)
- ash elements (1)
- aspect (1)
- assessment (1)
- available amount of nitrogen (1)
- Avena fatua L. (1)
- average agronomic rating (1)
- bacteria (1)
- bacterial blight (1)
- bacterial diseases (1)
- balance of humidity (1)
- Balkan Mountains (1)
- barley (2)
- basic tillage (1)
- bean (1)
- bedload flux and threshold velocity (1)
- Beloizvorski cement (1)
- Bigarreau Burlat (1)
- bioavailability (1)
- biochar (1)
- biochemical parameters (1)
- biological activity (1)
- biological methods (1)
- biological production (1)
- biomass (1)
- biometric (1)
- biometric characteristics (2)
- biometry (1)
- biophysical coefficient (1)
- Biopromoter (1)
- Black sea zone (1)
- black spots (Phoma macdonaldi) (1)
- bonitet assessment (1)
- broccoli (2)
- brown (Alternaria sp.) (1)
- brown forest soil (1)
- Brown Mountain Forest Soils (1)
- Bulgaria (1)
- Bulgarian sea coast (1)
- Burley tobacco (1)
- C-factor (2)
- C:N (1)
- cabbage (1)
- Calcareous Chernozem (1)
- Cambisol (1)
- Cambisols (2)
- carbon (1)
- carbonate content (1)
- Cardaria draba (1)
- categorization (1)
- cation exchange capacity (2)
- cations (1)
- Cd (1)
- cereal crops (1)
- chemical composition (1)
- chemical indicators (2)
- chemical quality indication (1)
- chemical soil changes (1)
- Chernozems (7)
- CHIMCO (1)
- chisel (1)
- chlorophyll (1)
- classification (2)
- climate (3)
- climate and fertilization effect (1)
- climate change (1)
- climate changes (1)
- climate characteristics (1)
- Climate Variability and Change (1)
- climatic and agroclimatic characteristics (1)
- climatic and soil conditions (1)
- climatic characteristics (2)
- climatic maps (1)
- climatic zoning (1)
- climatographic factors (1)
- Co (1)
- CO2 evolution (1)
- coal (1)
- coke (1)
- common wheat (1)
- common winter wheat (1)
- compensatory payments (5)
- competition (1)
- composition of organic matter (1)
- compound fertilizers (1)
- conductivity (1)
- content of macroelements (1)
- content of nutrients (1)
- Content of organic matter (humus) (1)
- controlled conditions (1)
- convenient (1)
- copper (1)
- corn (1)
- correlation (1)
- correlations (2)
- cotton field (1)
- cowpea (1)
- criteria of soil tillage (1)
- critical levels (1)
- crop rotation (6)
- crop yields (1)
- Cu (1)
- cultivars (1)
- cultivation of soil (1)
- Danube low lands (1)
- density (2)
- Dessert grapevine (1)
- developmental stages (1)
- dielectric spectroscopy (1)
- different climate conditions (1)
- drainage basin of river Tundzha (1)
- drip irrigation (3)
- drought (1)
- drought resistance (1)
- DTPA (1)
- early potatoes (1)
- earthed-up crops (1)
- earthworms (1)
- ecological factors (1)
- ecology (1)
- EDTA (1)
- effect of irrigation (1)
- effectiveness (1)
- effectiveness of fertilizing (1)
- efficiency of return (1)
- elements (1)
- energy balance (1)
- Epicalcic and Endocalcic Chernozem (1)
- eroded soil (1)
- erosion (2)
- erosion control measurements (1)
- erosion control practices (1)
- Eruca sativa (1)
- european programs (2)
- evaluation (1)
- factors (2)
- FAO framework (1)
- fauna (1)
- Fe (1)
- Fe2O3 (1)
- fertility (1)
- fertilization (10)
- fertilization effectiveness (1)
- fertilization rates (1)
- fertilizer (4)
- fertilizing (4)
- field production (2)
- field ratings (2)
- floating system (1)
- flora (1)
- foliar fertilizer (4)
- foliar fertilizers (1)
- food safety (1)
- forest fire (1)
- fragmentation (1)
- fruit trees (1)
- fulvicacids (2)
- fulvo acids (1)
- fungi (1)
- fungicides (1)
- Fusarium oxysporum (1)
- fuzzy regression (1)
- genesis (1)
- genetic horizons (1)
- genetic horizons. (1)
- geoecology (2)
- geological structure (1)
- GIS (1)
- GIS environment (1)
- good agricultural practices (1)
- good irrigation practices (1)
- grain mass (1)
- grain yield (2)
- green bean (1)
- green beans (1)
- green manuring (1)
- green mass yield (1)
- greenhouse gas flux (1)
- grey spots (Phomopsis helianthi) (1)
- growth (1)
- habitats (1)
- Haplic Vertisol (1)
- Haplic Vertisols (2)
- harrow (1)
- harvesting date (1)
- harvesting seeds (1)
- head cabbage (1)
- heavy metal (1)
- heavy metals (2)
- height of swards (1)
- herbicides (1)
- histic (1)
- Histosols (1)
- Holocene (1)
- homoclimates (1)
- humic acids (3)
- humic and fulvic acids (1)
- humic fertilizers (1)
- Humipromoter (1)
- humons (1)
- humus (2)
- humus content (1)
- humus degradation (1)
- humus systems (1)
- hydraulic servo systems (1)
- hydrothermal coefficient (1)
- impact on plants (1)
- incipient motion (1)
- indicators (1)
- Indicators of climate (1)
- industrial sewage sludge (1)
- inoculation (2)
- intensive agriculture (1)
- irrigation (9)
- irrigation depth (1)
- irrigation scheduling (4)
- irrigation technologies (1)
- Iskar River (1)
- Kordia (1)
- Krumovgrad 90 (1)
- L. taurica (1)
- land capability evaluation (4)
- land category (1)
- Land evaluation (9)
- land evaluation category (1)
- land evaluation group (1)
- landscape unit (1)
- Leached Chernozem (1)
- Leached Vertisol (1)
- leaching (1)
- lead (1)
- lead soil contamination (1)
- leaf biomass (1)
- leaf chemical composition (1)
- Leptic Luvisols (1)
- Limitation approach (1)
- liquid fertilizers (1)
- liquid organic fertilizers (1)
- litter (1)
- Lom region (1)
- long-term fertilization (1)
- long-term fertilization trial (2)
- Luvisols (2)
- Lyutadzhik (1)
- macro- and microelements (1)
- macroelements (2)
- macronutrients (1)
- maize (3)
- maize crop season (1)
- Maize grain yield (1)
- mapping (2)
- mathematical model (1)
- mathematical recognition (1)
- measure 214 (1)
- metal hyperaccumulation (1)
- meteorological risk (1)
- meteorological risks (1)
- methods (1)
- microbial activity (1)
- microbial fertilizer (1)
- microbial population density (1)
- microbiological processes (1)
- microelements (1)
- micromorfological characteristic (1)
- micromorphology (1)
- micronutrients (1)
- microorganisms (2)
- millet (1)
- mine (1)
- mineral (2)
- mineral composition (1)
- mineral degradation (1)
- mineral fertilization (3)
- mineral fertilizer (1)
- mineral fertilizers (2)
- mineral fertilizing (1)
- mineralogical properties (1)
- Mn (1)
- monitoring (1)
- monitoring network (2)
- monoculture (2)
- morphological characteristics (2)
- multiple disease resistance (1)
- mung bean (1)
- national park (1)
- natural park (2)
- natural pastures (1)
- near infrared spectroscopy (1)
- nematode (1)
- net irridiation (1)
- net requirements (1)
- new soils (1)
- nicotine (2)
- NIR (1)
- nitrate (1)
- nitrate content (1)
- Nitrate Directive (1)
- nitrates (1)
- nitrogen (3)
- nitrogen fertilization (1)
- nitrogen fertilization with N5 and N10 (1)
- nitrogen fixing bacteria (1)
- nitrogen levels (1)
- nitrogen oxides (1)
- Nitrogen rate (1)
- nodulation (1)
- non-irrigation conditions (1)
- nondestructive method (1)
- norms of fertilization (1)
- North Bulgaria (1)
- North-West Bulgaria (1)
- NPK fertilization (1)
- nutrient uptake (1)
- nutrition of plants (1)
- oilseed rape (1)
- onion (2)
- optimal conditions (1)
- optimal levels of Potassium (1)
- orchard (1)
- organic (2)
- organic carbon (3)
- organic crop rotation (1)
- organic fertilizer (1)
- organic fertilizers (1)
- organic management (1)
- organic matter (1)
- Oriental tobacco (5)
- output of nutritional elements (1)
- ozone AOT 40 (1)
- P. s. pv. pisi (1)
- P. sativum (1)
- parameters (1)
- parameters of Potassium regime (1)
- parent materials (1)
- parent rock (1)
- partial nutritional balance (1)
- partial productivity (1)
- Pb (1)
- PCA (1)
- peas (2)
- percentage indicators (1)
- pH (1)
- Ph. infestans (1)
- phosphorus (2)
- phosphorus and potassium (1)
- physical parameters (2)
- physical parameters of soil (1)
- physicochemical conditions (1)
- phytoremediation (1)
- plant density (1)
- plant residues (1)
- Planting date (1)
- plastic unheated greenhouses (1)
- Pliocene (1)
- Podzols (1)
- pollution (1)
- pollution index (1)
- porosity (1)
- potasium fertilization (1)
- potassium (1)
- potassium fertilization (1)
- potential erosion risk (2)
- potentialerosion risk (1)
- poultry manure (1)
- powdery mildew (1)
- precipitation (1)
- probability analyzes (1)
- productivity (3)
- properties (1)
- pumpkins (1)
- quality (4)
- rainfall erosivity (4)
- rape seed (1)
- rapeseed (1)
- raspberry (2)
- ratio org. C/N (1)
- RDP 2007 - 2014 (1)
- Reddish soils (1)
- reference evapotranspiration PMET0 (1)
- relative permittivity (1)
- relief (1)
- Rendzic Leptosols (1)
- reproduction of fertility (1)
- resistance (1)
- rheology (1)
- Rhizobium meliloti (1)
- Rhizoctonia solani AG 4 (1)
- risk assessment of climate change (1)
- risk of negative changes in physical parameters (1)
- river Tundzha catchment area (1)
- river Tundzha drainage basin (1)
- root and crown rot (1)
- root crops (1)
- root rot of wheat (1)
- salinity (1)
- Sandy soils (1)
- Sandy Soils (Arenosols) (1)
- sediment transport (1)
- seed yield (1)
- seedlings of tomatoes (1)
- seeds (1)
- selection and production (1)
- sensitivity analysis (1)
- sequential extraction (1)
- sewage sludge (2)
- sheet water erosion (3)
- skeletal mountain soils (1)
- slope (1)
- slope soils (1)
- soil (5)
- soil - climatic conditions (1)
- soil acidification (1)
- soil amendment (1)
- soil characteristics (2)
- soil chemical and physical properties (1)
- soil compaction (1)
- soil cover (1)
- soil cultivation (1)
- soil data bases (1)
- soil erodibility (3)
- soil erodibility factor (1)
- soil erosion (6)
- soil erosion factors (1)
- soil erosion risk (1)
- soil fertility (1)
- soil formation (1)
- soil genesis (1)
- soil heat flux (1)
- soil improvers (1)
- soil loss (1)
- soil microbiota (1)
- soil microflora (2)
- soil microorganisms (5)
- soil moisture (1)
- soil organic matter (2)
- soil parameters (1)
- soil pollution (2)
- soil processing (1)
- soil productivity (1)
- soil profile (1)
- soil profile water permeability (1)
- soil properties (2)
- soil reaction (2)
- soil resources (1)
- soil respiration (1)
- soil structure (2)
- soil suppressiveness (1)
- soil texture (2)
- soil thermal conductivity (1)
- soil tillage (2)
- soil tillage systems (2)
- soil treatment (1)
- soil type (1)
- soil-forming factors (1)
- soilborne pathogens (1)
- soils (4)
- sorption capacity (1)
- spatial variability (1)
- spoil fertility (2)
- spring vetch (1)
- statistical analysis (1)
- Strandzha (1)
- Strandzha Mountain (1)
- strawberry (1)
- structure of weed community (1)
- stubble crops (1)
- subsurface tiller (1)
- sugar (1)
- sugar beet (1)
- suitability (1)
- suitability classification (1)
- sulphur dioxide (1)
- Summit (1)
- sunflower (4)
- sustainable disease control method (1)
- sweet cherry (1)
- systematic of Chernozems (1)
- tailing pond (1)
- TAW (1)
- technogenically affected Meadow Cinnamonic Soil (1)
- technogenically affected soils (2)
- technologies (1)
- technology (2)
- temperature sum (1)
- testing of new agronomic decisions (1)
- the Balkan Mountains (1)
- tillage (1)
- tillage machinery (1)
- tillering (1)
- tobacco (4)
- tomato (1)
- tomato plants (2)
- tomatoes (2)
- topography (1)
- topography factor (2)
- topping (1)
- total sugar (1)
- total sugars (1)
- town Sandanski (1)
- toxicity coefficient (2)
- trace elements (2)
- Traikovo (1)
- tree species (1)
- Triticale (1)
- type of swards (1)
- type pastures (1)
- Umbrisols (1)
- Universal Soil Loss Equation (2)
- uptake (3)
- urban forest parks (1)
- urban soils (1)
- USLE (4)
- vegetable crops (1)
- vegetative and reproductive expression of tomato plants (1)
- vegetative development (1)
- vermicompost (1)
- vermiculite (1)
- Vertiso (1)
- Vertisols (4)
- village Lyutibrod (1)
- vineyard (1)
- Virginia tobacco (1)
- viscoelastic properties (1)
- vulnerable areas (1)
- wastewater (1)
- water and wind erosion of the soil (1)
- Water Balance (1)
- water erosion (1)
- water erosion risk (1)
- water protection (1)
- water regime (1)
- water stable aggregates (1)
- weed infestation (1)
- weight indicators (1)
- weightings for the climate (1)
- wheat (3)
- wheat included in four-field crop rotation (1)
- willows (1)
- wind erosion (1)
- WinISAREG model (1)
- winter barley (1)
- winter wheat (3)
- wintering forage pea (1)
- working body (1)
- working part (1)
- yield (13)
- yield of leguminous plants (1)
- Zgorigrad (1)
- Zn (1)
- Еrosion factors (1)
- Еvapotranspiration (1)
- сlimate (1)