Articles by keyword
Articles:
- Changes in main agrochemical soil parameters as a result of factors from the agro-technical complex within the three-field field crop rotation
Iliyana Gerasimova, Vanya Lozanova, Maya Benkova, Ivaylo Kirilov, Zdravka Petkova
2022-06-01 - Data evelopment analysis of the technical efficiency of maize-based agroforestry system in Oyo state, Nigeria
Femi Awe, Fatai Abiola Azeez, Lucy Adeteju Orumwense
2021-08-19 - Optimization of Agrotechnical Units in Technologies for Grain Production in the Sofia Area
Martin Nenov, Ivan Dimitrov, Vanya Lozanova, Iliana Gerasimova, Nikolay Traikov
2020-09-04 - 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 56, No 2, 2022
Volume 55, Nо 2, 2021
Volume 54, Nо 3, 2020
Volume 51, No 1, 2017
Volume 48, No 3-4, 2014
Volume 47, No 4, 2013
- A. solani (1)
- abiotic factors (2)
- absolutely dry matter (1)
- accessibility (1)
- acid shallow soils (1)
- acidity (1)
- actinomycetes (1)
- actual erosion risk (2)
- actualization (1)
- after-effect of starting temperature (1)
- aggregates (1)
- agricultural areas (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)
- aphids (4)
- 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)
- 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)
- 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)
- bonitet assessment (1)
- broccoli (2)
- brown (Alternaria sp.) (1)
- brown forest soil (1)
- Brown Mountain Forest Soils (1)
- Bulgaria (2)
- Bulgarian sea coast (1)
- Burley tobacco (2)
- 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)
- cereal crops (1)
- characteristics (1)
- characterization (1)
- chemical composition (3)
- 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 (3)
- climate changes (1)
- 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)
- 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 (9)
- crop yields (1)
- Cu (1)
- Cucumber (1)
- cultivars (1)
- cultivation of soil (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)
- drought (1)
- drought resistance (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)
- eroded soil (1)
- erosion (2)
- erosion control measurements (1)
- erosion control practices (1)
- Eruca sativa (1)
- escherichia coli (1)
- european programs (3)
- evaluation (1)
- evapotranspiration (1)
- exports of nutrients (N, P, K) (1)
- factor (1)
- factors (3)
- FAO framework (1)
- Farmers (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 (2)
- 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 (3)
- 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)
- intensive agriculture (1)
- interest rate (1)
- irrigation (9)
- irrigation depth (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)
- Krumovgrad 90 (1)
- L. taurica (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)
- 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 (3)
- maize (6)
- maize (Zea maize) (1)
- maize crop season (1)
- Maize grain 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 (1)
- microbiological processes (1)
- microbiological properties (1)
- microbiota (1)
- microelemens (1)
- microelements (1)
- microflora (1)
- micromorfological characteristic (1)
- micromorphology (1)
- micronutrients (1)
- microorganisms (5)
- microplastic particle (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 (1)
- 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)
- Myzus persicae (4)
- 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)
- 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 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)
- 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)
- 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 (2)
- potassium fertilization (1)
- potatoes (4)
- potential erosion risk (2)
- 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)
- saffron (1)
- salad varieties (1)
- salinity (1)
- salinity 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)
- soil (8)
- 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 (6)
- soil moisture (2)
- soil organic matter (2)
- soil parameters (2)
- Soil parent material (1)
- soil particle density (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)
- structure of weed community (1)
- stubble crops (1)
- subsidies (1)
- subsurface tiller (1)
- suction plate 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)
- susceptibility (1)
- sustainable development (1)
- sustainable disease control method (1)
- sustainable environment (1)
- sweet cherry (1)
- systematic of Chernozems (1)
- tailing pond (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 (2)
- tillage machinery (1)
- tillage systems (1)
- tillering (1)
- tobacco (8)
- 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)
- 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)
- weed infestation (1)
- weeds (1)
- 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 (1)
- yields. (1)
- zeolite (1)
- Zgorigrad (1)
- Zn (1)
- β-carotene (1)
- Еrosion factors (1)
- Еvapotranspiration (1)
- сlimate (1)