Статии по ключови думи
Статии:
- Drip irrigation of sunflower in the Sofia field
Rumyna Kireva, Vesela Petrova
2018-05-14 - 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 - Evaluation of Hybrid Material, Originated from Wild Annual Sunflower Species for Resistance to the Leaves Pathogens Cause Grey (Phomopsis helianthi), Brown (Alternaria sp.) and Black (Phoma macdonaldi) Spots on Sunflower
V. Encheva, D. Valkova
2017-02-13 - Effectiveness of Mineral Fertilization on Sunflower, Cultivated on Pellic Vertisol in Southeastern Bulgaria in Favorable and Risky Meteorological Conditions
V. Koteva
2017-02-13
Брой 52, No 1, 2018
Брой 48, No 3-4, 2014
Брой 48, No 2, 2014
- , macroelements (1)
- A. solani (1)
- abiotic factors (2)
- absolutely dry matter (1)
- accessibility (1)
- acid shallow soils (1)
- acidity (1)
- actinomycetes (1)
- actual and potential land evaluation (1)
- actual erosion risk (2)
- actualization (1)
- after-effect of starting temperature (1)
- aggregates (1)
- agricultural areas (1)
- agricultural lands (1)
- agricultural soils (1)
- agriculture (2)
- agro-climatic characteristics (1)
- agro-climatic regions (1)
- agro-ecological areas (1)
- agro-ecological conditions (1)
- agro-ecological potential (1)
- agro-environment potential (1)
- agrochemical and mechanical properties (1)
- agrochemical grouping of soils (1)
- agrochemical properties (1)
- agroclimatic potential (1)
- agroecological assessment (1)
- agroecological regions (1)
- agroecosystem (1)
- Agroforestry (2)
- agronomic suitability (1)
- agrosoil groups (1)
- agrotechnical measures (1)
- air pollution (1)
- air temperatures (1)
- alfalfa (3)
- alfalfa, symbiotic N-fixing bacteria (1)
- alpine environment (1)
- AM (Arbuscular mycorrhizal) fungus (1)
- Amendment (1)
- anastomosis group 4 (AG 4) (1)
- and fertilization effect (1)
- anions (1)
- annual sum of precipitation (1)
- anolyte (1)
- antagonism (2)
- anthropogenic degradation (1)
- anthropogenic load of soil (1)
- anti-erosion technologies (1)
- aphids (5)
- apple (1)
- apple scab (1)
- Approach rating (1)
- arable and non-cultivated areas (1)
- Arable food crop farmers (1)
- arbuscular mycorrhizal fungi (2)
- Arenosols (2)
- As (1)
- Asa River (1)
- ascorbic acid (1)
- ash elements (1)
- aspect (1)
- assessment (1)
- available amount of nitrogen (1)
- available water capacity (1)
- Avena fatua L. (1)
- average agronomic rating (2)
- average mass of fruit (1)
- B. subtilis (2)
- bacteria (1)
- bacterial blight (1)
- bacterial diseases (1)
- balance of humidity (1)
- Balkan Mountains (1)
- banana corm (1)
- barley (3)
- barley varieties (1)
- base saturation (1)
- basic tillage (1)
- basil (1)
- Bayelsa State (1)
- bean (1)
- bedload flux and threshold velocity (1)
- behavior (1)
- Beloizvorski cement (1)
- Bigarreau Burlat (1)
- bio-fertilizers (1)
- bioagents (1)
- bioavailability (1)
- biochair (1)
- biochar (4)
- biochemical parameters (1)
- biocontrol agent (1)
- biodynamic farming (2)
- biofilm (1)
- biogenicity (1)
- biological activity (1)
- biological methods (1)
- biological production (1)
- biomass (1)
- biometric (1)
- biometric characteristics (2)
- biometric indicators (1)
- biometry (1)
- biophysical coefficient (1)
- Biopromoter (1)
- biostimulators (1)
- Black sea zone (1)
- black spots (Phoma macdonaldi) (1)
- bonitation (1)
- bonitet assessment (1)
- broccoli (2)
- broomrape (1)
- brown (Alternaria sp.) (1)
- brown forest soil (1)
- Brown Mountain Forest Soils (1)
- Bulgaria (2)
- Bulgarian sea coast (1)
- Burley tobacco (2)
- burning properties (1)
- C-factor (2)
- C:N (1)
- cabbage (1)
- Calcareous Chernozem (1)
- Cambisol (1)
- Cambisols (3)
- cannibalism (1)
- carbon (1)
- carbonate content (1)
- Cardaria draba (1)
- categorization (2)
- cation exchange capacity (2)
- cations (1)
- Cd (1)
- CEC (1)
- cereal crops (1)
- characteristics (1)
- characterization (1)
- chemical composition (4)
- chemical indicators (2)
- chemical quality indication (1)
- chemical soil changes (1)
- Chernozems (7)
- chi-square (1)
- CHIMCO (1)
- chisel (1)
- chlorhexidine (1)
- chlorophyll (1)
- classification (3)
- climate (4)
- climate and fertilization effect (1)
- climate change (4)
- climate changes (2)
- climate characteristics (1)
- climate data (1)
- Climate Variability and Change (1)
- climate variables (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)
- Coccinellidae (1)
- coke (1)
- cold stress (1)
- coliform bacteria (1)
- combined fertilizer (1)
- common bean (1)
- common wheat (1)
- common winter wheat (1)
- compensatory payments (6)
- competition (2)
- complex leaf (1)
- composition of organic matter (1)
- compost (2)
- compost preparations (1)
- compound fertilizers (2)
- concentration (1)
- conductivity (1)
- coniferous ecosystems (1)
- contaminated soil (1)
- Contamination (1)
- content of macroelements (1)
- content of nutrients (1)
- Content of organic matter (humus) (1)
- controlled conditions (1)
- convenient (1)
- conventional farming (1)
- copper (1)
- corn (1)
- correlation (1)
- correlations (2)
- cotton field (1)
- cowpea (1)
- credit (1)
- criteria of soil tillage (1)
- critical levels (1)
- crop rotation (10)
- crop yields (1)
- crops (1)
- Cu (1)
- Cucumber (1)
- cultivars (1)
- cultivation of soil (1)
- cultivation technologies (1)
- current assessment (1)
- Danube low lands (1)
- defining (1)
- deforestation (1)
- demand (1)
- density (2)
- Dessert grapevine (1)
- determinant tomatoes (1)
- developmental stages (1)
- dielectric spectroscopy (1)
- different climate conditions (1)
- disinfection (1)
- Dolnobanska valley (1)
- drainage basin of river Tundzha (1)
- drip irrigation (5)
- drough (1)
- drought (1)
- drought resistance (1)
- drought stress (1)
- dry matter (1)
- DTPA (1)
- Dystric-Eutric Cambisols (1)
- E. coli K-12 (2)
- 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 indicators (1)
- efficiency of return (1)
- einkorn (2)
- electrochemically activated water (1)
- elements (1)
- energy balance (1)
- enterococcus (1)
- environmental factors (1)
- environmental friendliness (1)
- enzyme activity (2)
- enzymes (1)
- Epicalcic and Endocalcic Chernozem (1)
- Epicalcic Chernozem (1)
- eroded soil (1)
- erosion (2)
- erosion control measurements (1)
- erosion control practices (1)
- Eruca sativa (1)
- escherichia coli (1)
- european programs (3)
- evaluation (1)
- evaluation of land characteristics (1)
- evapotranspiration (1)
- exports of nutrients (N, P, K) (1)
- factor (1)
- factors (3)
- FAO framework (1)
- Farmers (1)
- Farming system (1)
- fauna (1)
- Fe (1)
- Fe2O3 (1)
- fecal coliform bacteria (1)
- fertigation (3)
- fertility (1)
- fertilization (12)
- fertilization effectiveness (1)
- fertilization rates (1)
- fertilizer (4)
- fertilizer sources (1)
- fertilizing (4)
- field assessment rating (1)
- field capacity (1)
- field experience (3)
- field production (2)
- field rating (1)
- field ratings (3)
- field scale maps (1)
- fine-tuning (1)
- fish farming (1)
- floating system (1)
- flooding (1)
- floodplain soils (1)
- flora (1)
- Fluvisol (2)
- foliar fertilizer (4)
- foliar fertilizers (1)
- food safety (2)
- food security (2)
- forest benefits (1)
- forest communities (1)
- forest dependence (1)
- forest fire (1)
- forest soils (1)
- forests (1)
- fragmentation (1)
- fresh weight (1)
- fruit trees (1)
- fulvicacids (2)
- fulvo acids (1)
- fungi (1)
- fungicides (1)
- Fusarium oxysporum (1)
- fuzzy regression (1)
- fuzzy sets (1)
- gas emission (1)
- genesis (1)
- genetic horizons (1)
- genetic horizons. (1)
- geoecology (2)
- geographical information systems (GIS) (1)
- geological structure (1)
- GIS (1)
- GIS environment (1)
- good agricultural practices (1)
- good irrigation practices (1)
- grain mass (1)
- grain yield (2)
- Grains (1)
- gravimetric method (1)
- green bean (1)
- green beans (1)
- green biomass (1)
- green house effect (1)
- green manuring (1)
- green mass yield (1)
- greenhouse (1)
- greenhouse gas flux (1)
- grey spots (Phomopsis helianthi) (1)
- Gross margin (1)
- growth (1)
- growth and yield (2)
- growth and yield of okra (1)
- habitats (1)
- Haplic Chernozems (1)
- Haplic Vertisol (1)
- Haplic Vertisols (2)
- harrow (1)
- harvesting date (1)
- harvesting seeds (1)
- head cabbage (1)
- heavy metal (1)
- heavy metals (5)
- height of swards (1)
- herbicides (4)
- histic (1)
- Histosols (1)
- Holocene (1)
- homoclimates (1)
- homoclime (1)
- humic acids (3)
- humic and fulvic acids (1)
- humic extract (1)
- humic fertilizers (1)
- Humipromoter (1)
- humons (1)
- humus (3)
- humus content (1)
- humus degradation (1)
- humus systems (1)
- hydraulic conductivity (1)
- hydraulic pedotransfer functions (1)
- hydraulic servo systems (1)
- hydrothermal coefficient (1)
- hygienic and sanitary aspect (1)
- Ibarapa (1)
- Ilorin (1)
- Image J (1)
- image processing (1)
- impact on plants (1)
- incipient motion (1)
- Incorporation (1)
- indicators (1)
- Indicators of climate (1)
- industrial sewage sludge (1)
- inoculation (2)
- insecticides (1)
- integrated control (1)
- intensive agriculture (1)
- interest rate (1)
- irrigation (9)
- irrigation depth (1)
- irrigation methods and techniques (1)
- irrigation norms (1)
- irrigation rate (1)
- irrigation regime (1)
- irrigation scheduling (4)
- irrigation technologies (1)
- Iskar River (1)
- Kastanozems (1)
- Kogi (1)
- Kordia (1)
- kriging (1)
- Krumovgrad 90 (1)
- L. taurica (1)
- laboratory mini TDR sensor (1)
- laboratory TDR sensor (1)
- Lactuca sativa L. (1)
- ladybirds (1)
- land capability evaluation (5)
- land category (1)
- Land evaluation (11)
- land evaluation category (1)
- land evaluation group (1)
- land use types (1)
- land-use (2)
- landscape unit (1)
- lavender (1)
- Leached Chernozem (1)
- Leached Vertisol (1)
- leaching (1)
- lead (1)
- lead soil contamination (1)
- leaf area measurement (1)
- leaf biomass (1)
- leaf chemical composition (1)
- Leptic Luvisols (1)
- lettuce (1)
- Limitation approach (1)
- liquid fertilizers (1)
- liquid organic fertilizer (1)
- liquid organic fertilizers (1)
- litter (1)
- livelihoods (1)
- lntegrated nutrient management (1)
- Localities (1)
- Lodicules (1)
- Lom region (1)
- long-term fertilization (1)
- long-term fertilization trial (2)
- Lower Niger River (1)
- Luvisols (2)
- lycopene (1)
- Lyutadzhik (1)
- macro- and microelements (1)
- macroelemens (1)
- macroelements (2)
- Macrolophus spp. (1)
- macronutrients (4)
- maize (6)
- maize (Zea maize) (1)
- maize crop season (1)
- Maize grain yield (1)
- Maize yield (1)
- mapping (2)
- market price (1)
- mass of plants (1)
- mathematical model (1)
- mathematical recognition (1)
- mean-weighted diameters of water stable and dry aggregates (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 indicators (2)
- microbiological processes (1)
- microbiological properties (1)
- microbiota (1)
- microelemens (1)
- microelements (1)
- microflora (1)
- micromorfological characteristic (1)
- micromorphology (1)
- micronutrients (2)
- microorganisms (5)
- microplastic particle (1)
- microregion (1)
- millet (1)
- mine (1)
- mineral (2)
- mineral composition (1)
- mineral degradation (1)
- mineral fertilization (4)
- mineral fertilizer (1)
- mineral fertilizers (2)
- mineral fertilizing (1)
- mineral fetrilizaton (1)
- mineralogical properties (1)
- mini tensiometer (2)
- Mn (1)
- Modic Cambisols (1)
- moisture stress (1)
- monitoring (1)
- monitoring network (2)
- monoculture (2)
- Moringa oleifera (1)
- morphological characteristics (2)
- morphology (1)
- Morphometry (1)
- multiple disease resistance (1)
- multispecies biofilm (1)
- mung bean (1)
- mycorrhizal inoculants (1)
- Myzus persicae (5)
- national park (1)
- natural constraints (1)
- natural disasters (1)
- natural park (2)
- natural pastures (1)
- near infrared spectroscopy (1)
- nematode (1)
- net irridiation (1)
- net requirements (1)
- new soils (1)
- nicotine (2)
- Nigeria (1)
- NIR (1)
- Nisosulfuron (1)
- nitrate (1)
- nitrate content (3)
- Nitrate Directive (1)
- nitrates (2)
- nitrogen (4)
- nitrogen (N) and phosphorus (P) uptake (1)
- nitrogen fertilization (4)
- nitrogen fertilization with N5 and N10 (1)
- nitrogen fertilizers (1)
- nitrogen fixing bacteria (1)
- nitrogen levels (1)
- nitrogen oxides (1)
- Nitrogen rate (1)
- nodulation (1)
- non-irrigation conditions (2)
- nondestructive method (1)
- norms of fertilization (1)
- North Bulgaria (1)
- North-West Bulgaria (1)
- NPK fertilization (1)
- NPK fertilizer (1)
- NPK fertilizer rates (1)
- NPK partitioning (1)
- number of flowers (1)
- number of inflorescences (1)
- numerical dynamics (1)
- nutrient optimization (1)
- nutrient removal (1)
- nutrient uptake (1)
- nutrients (2)
- nutrients leaching (1)
- nutrition of plants (1)
- nutritional qualities (1)
- oats (1)
- Ogun state (1)
- oilseed rape (1)
- okra (1)
- okra varieties (1)
- onion (2)
- optimal conditions (1)
- optimal levels of Potassium (1)
- orchard (1)
- organic (2)
- organic and conventional farming (1)
- organic and mineral fertilization (3)
- organic carbon (4)
- organic crop rotation (1)
- organic farming (1)
- organic fertilizer (2)
- organic fertilizers (2)
- organic management (1)
- organic matter (1)
- organic wastes (1)
- Oriental tobacco (6)
- oriental tobacco varieties (1)
- output of nutritional elements (1)
- Oyo State (1)
- ozone AOT 40 (1)
- P. s. pv. pisi (1)
- P. sativum (1)
- P. vulgaris (1)
- parameters (1)
- parameters of Potassium regime (1)
- parent materials (1)
- parent rock (1)
- partial nutritional balance (1)
- partial productivity (1)
- pathogen (1)
- Pb (1)
- PCA (1)
- PCR analysis (1)
- peas (2)
- percentage indicators (1)
- perception (1)
- pH (2)
- Ph. infestans (1)
- phosphate solubilizing bacteria (1)
- phosphorus (3)
- phosphorus and potassium (1)
- photosynthetic activities (1)
- physical parameters (2)
- physical parameters of soil (2)
- physical properties (1)
- physicochemical conditions (1)
- physicochemical properties (1)
- phytoremediation (1)
- phytosanitary monitoring (1)
- pigments (1)
- Planosols (1)
- plant density (1)
- plant growth (1)
- plant residues (1)
- Planting date (1)
- planting dates (1)
- plastic unheated greenhouses (1)
- plastid pigments (2)
- Pliocene (1)
- Podzols (1)
- pollution (1)
- pollution index (1)
- porosity (1)
- pot experiment (1)
- potasium fertilization (1)
- potassium (3)
- potassium fertilization (1)
- potatoes (4)
- potential agricultural land evaluation (1)
- potential assessment of agricultural land (1)
- potential classification by suitability for land use (1)
- potential erosion risk (2)
- potential land evaluation and categorization (1)
- potentialerosion risk (1)
- poultry manure (1)
- powdery mildew (1)
- practical use (1)
- precipitation (1)
- Prevalence (1)
- probability analyzes (1)
- production structure (1)
- productivity (4)
- properties (1)
- proximate analysis (1)
- pumpkins (1)
- quality (7)
- quality of life (1)
- quality parameters (1)
- 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)
- regional climate (1)
- Regression (1)
- relative permittivity (1)
- relief (2)
- Rendzic Leptosols (1)
- rent (1)
- reproduction of fertility (1)
- resistance (2)
- Resource-use (1)
- return to scale (1)
- rheology (1)
- Rhizobium meliloti (1)
- Rhizoctonia solani (1)
- Rhizoctonia solani AG 4 (1)
- rice husk biochar (1)
- risk assessment (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 basal stem rot (1)
- root and crown rot (1)
- root crops (1)
- root rot of wheat (1)
- rust (1)
- S-metolachlor (1)
- saffron (1)
- salad varieties (1)
- salinity (1)
- salinity stress (1)
- salt stress (1)
- Sandy soils (1)
- Sandy Soils (Arenosols) (1)
- seasonal dynamics (1)
- sectoral applicability (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)
- skeletal soils (1)
- slope (1)
- slope soils (1)
- Small holder (1)
- software (1)
- soil (9)
- soil - climatic conditions (1)
- soil acidification (1)
- soil aggregation (1)
- soil amendment (1)
- soil bulk density (1)
- soil characteristics (2)
- soil chemical and physical properties (1)
- soil compaction (2)
- soil cover (1)
- soil cultivation (1)
- soil data bases (1)
- soil electro conductivity (1)
- soil erodibility (3)
- soil erodibility factor (1)
- soil erosion (7)
- soil erosion factors (1)
- soil erosion risk (1)
- soil fertility (2)
- soil formation (1)
- soil genesis (1)
- soil heat flux (1)
- soil improvers (1)
- soil indicators (2)
- soil loss (1)
- soil microbiota (1)
- soil microflora (2)
- soil microorganisms (7)
- soil moisture (2)
- Soil nutrient dynamics (1)
- soil organic matter (2)
- soil parameters (2)
- Soil parent material (1)
- soil particle density (1)
- soil pH (1)
- soil physical properties (1)
- soil pollution (2)
- soil porosity (1)
- soil processing (1)
- soil productivity (1)
- soil profile (1)
- soil profile water permeability (1)
- soil properties (3)
- soil protection measures (1)
- soil quality (1)
- soil reaction (2)
- soil resources (1)
- soil respiration (1)
- soil structure (3)
- soil suppressiveness (1)
- soil texture (2)
- soil texture fractions (1)
- soil thermal conductivity (1)
- soil tillage (3)
- soil tillage systems (2)
- soil treatment (1)
- soil type (1)
- soil water retention curve (1)
- soil-forming factors (1)
- soilborne pathogens (1)
- soils (6)
- sorption capacity (1)
- southwest region (1)
- spatial variability (1)
- Spikes (1)
- spoil fertility (2)
- spore formation (1)
- spring vetch (1)
- statistical analysis (1)
- statistical methods (1)
- Strandzha (1)
- Strandzha Mountain (1)
- strategy (1)
- strawberry (1)
- strawberry cultivars (1)
- stress (1)
- structure of weed community (1)
- stubble crops (1)
- subsidies (1)
- subsurface tiller (1)
- suction plate apparatus (1)
- suction type apparatus (1)
- sudan grass (1)
- sugar (1)
- sugar beet (1)
- sugars (1)
- suitability (1)
- suitability classification (1)
- sulphur dioxide (1)
- Summit (1)
- sunflower (4)
- surface mean relative area of dry and water stable soil aggregates (1)
- surface mulching (1)
- susceptibility (1)
- sustainable development (1)
- sustainable disease control method (1)
- sustainable environment (1)
- sweet cherry (1)
- systematic of Chernozems (1)
- tailing pond (1)
- tar (1)
- TAW (1)
- Technical efficiency (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)
- the cost per unit of soil ecological ball (1)
- tillage (3)
- tillage machinery (1)
- tillage systems (1)
- tillering (1)
- tobacco (10)
- tomato (3)
- tomato plants (2)
- tomatoes (4)
- topography (1)
- topography factor (2)
- topping (1)
- total pigments (1)
- total sugar (2)
- total sugars (2)
- town Sandanski (1)
- toxicity coefficient (2)
- trace elements (2)
- Traikovo (1)
- tree species (1)
- Triticale (1)
- type of swards (1)
- type pastures (1)
- U. appendiculatus (1)
- Umbrisols (2)
- Universal Soil Loss Equation (2)
- uptake (3)
- urban forest parks (1)
- urban soils (1)
- USLE (4)
- Variation (1)
- vegetable crops (1)
- vegetative and reproductive expression of tomato plants (1)
- vegetative development (2)
- vermicompost (1)
- vermiculite (2)
- vertical mulching (1)
- Vertiso (1)
- Vertisols (4)
- village Lyutibrod (1)
- vineyard (1)
- Virginia tobacco (3)
- viscoelastic properties (1)
- vulnerable areas (1)
- washes samples (1)
- wastewater (1)
- water (1)
- water and wind erosion of the soil (1)
- Water Balance (1)
- Water deficit stress (1)
- water erosion (1)
- water erosion risk (1)
- water protection (1)
- water regime (1)
- water resistance (1)
- water stability of soil aggregates (1)
- water stable aggregates (1)
- waterlogging stress (1)
- weed infestation (1)
- weeds (3)
- weight indicators (1)
- weightings for the climate (1)
- wheat (6)
- wheat and triticale (1)
- wheat included in four-field crop rotation (1)
- willows (1)
- wilting point (1)
- wind erosion (1)
- WinISAREG model (1)
- winter barley (1)
- winter wheat (4)
- wintering forage pea (1)
- working body (1)
- working part (1)
- WWTPs sludge (1)
- yield (21)
- yield attributes (1)
- yield of leguminous plants (1)
- yield structure (1)
- yields (2)
- yields. (1)
- zeolite (1)
- Zgorigrad (1)
- Zn (1)
- β-carotene (1)
- Еrosion factors (1)
- Еvapotranspiration (1)
- сlimate (1)