Seasonal dynamics of lead content in sod-podzolic soil in dependence of mineral fertilizer application

2021 ◽  
Vol 22 (2) ◽  
pp. 234-243
Author(s):  
O. A. Cheglakova ◽  
L. N. Shikhova
Keyword(s):  
Podzolic Soil ◽  
Mineral Fertilizer ◽  
Growing Season ◽  
Fertilizer Application ◽  
Lead Content ◽  
Mineral Fertilizers ◽  
Active Matter ◽  
Lead Compounds ◽  
Mobile Forms ◽  
Active Mobilization

Influence of prolonged use of increasing doses of mineral fertilizers (NPK by 0-30-60-90-120-150 kg of active matter/ha) on contents and dynamics of acid-soluble and mobile compounds of lead in an arable layer of the sod-podsolic soil was studied during the growing season of 2016. It has been established that prolonged application of fertilizers significantly increases the content of mobile forms of the element in the soil at application of NPK in dozes of 30 and 150 kg of active matter / ha as compared to the control (average values are 0.57, 0.51, and 0.33, respectively). However, even prolonged application of large doses of mineral fertilizers does not lead to a significant increase in lead content in the arable horizons of the soil. Acid-soluble lead compounds range from 2.46 (N0P0K0) to 5.33 mg/kg (N150P150K150); the content of mobile lead compounds from 0.08 to 1.31 mg/kg of soil, respectively, at maximum acceptable concentration of 6.0 mg/kg. The content of acid-soluble and mobile lead compounds in arable horizons of sod-podzolic soil had a reliable dynamics during the growing season on all variants of the experiment. An increase in the content and acid-soluble and mobile compounds is usually observed in the first half of the growing season (end of May - beginning of June), which is probably due to the active mobilization of lead from slow-moving compounds as a result of the activation of microbiological activity under a favorable hydrothermal regime. In the same period, the portion of mobile fractions of lead to acid-soluble fractions increases. Application of increasing doses of fertilizers (30, 60, 90, 120 and 150 kg/ha of active matter) does not always show a reliable increase in the content of the element in the corresponding variant, which is obviously due to the influence of unaccounted factors. A clearer content dynamics is characteristic of mobile lead compounds.

Change of the redox potential in the profile of light grey forest surface-gleyed soil under different anthropogenic

2018 ◽  
Vol 2 (95) ◽  
pp. 26-29
Author(s):  
O.S. Gavrishko ◽  
Yu.M. Olifir ◽  
T.V. Partyka
Keyword(s):  
Redox Potential ◽  
Mineral Fertilizer ◽  
Fertilizer Application ◽  
Soil Tillage ◽  
Mineral Fertilizers ◽  
Gleyed Soil ◽  
Agricultural Use ◽  
Fertilizer System ◽  
And Control ◽  
The Given

The results of studies of the change in redox potential in the profile of light gray forest surface-gleyed soil on variants with long-term agricultural use without applying fertilizers and mineral fertilizer system solely compared with the soil under the forest are presented. On the basis of the conducted analyzes it was established, that soil tillage without fertilizer application and with mineral fertilizer solely has a different effect on ROP in the profile. In the soil without fertilization (control) as compared to the forest a moderate oxidizing (514 mV) and slightly oxidizing (437 mV) processes are happening. Prolonged application of mineral fertilizers to the soil (N65R68K68) significantly reduced the redox potential of all genetic horizons compared with forest and control without fertilizers. For the given fertilizer system the highest values of ROP were obtained in arable HEgl and underarable HEgl layers: 426 mV and 416 mV respectively. Redox potential sharply decreases with the depth to 398-311 mV, which characterizes processes occurring in the soil profile, as weakly reducing and close to moderately reducing.

scholarly journals Soil fertility management in apple orchard with microbial biofertilizers

2020 ◽  
Vol 222 ◽  
pp. 03020
Author(s):  
Andrei Kuzin ◽  
Alexei Solovchenko ◽  
Ludmila Stepantsova ◽  
Grigory Pugachev
Keyword(s):  
Soil Fertility ◽  
Drip Irrigation ◽  
Field Experiments ◽  
Irrigation System ◽  
Mineral Fertilizer ◽  
Fertilizer Application ◽  
Azotobacter Chroococcum ◽  
Organic Fertilizers ◽  
High Rate ◽  
Mineral Fertilizers

Intensification of horticulture in Russia involves planting of new high-density orchards with drip irrigation and fertigation as well as intensification of the exploitation of traditional orchards. This approach involves an increase in mineral fertilizer application imposing the risk of soil fertility loss. For several reasons, the use of traditional organic fertilizers like manure in orchards is currently marginal. Although bacteria-based biofertilizers cannot substitute mineral fertilizers completely, they can significantly reduce the need for mineral fertilizer application. The effect of microbial biofertilizers of the brands “Azotovit” (Azotobacter chroococcum), “Phosphatovit” (Bacillus mucilaginosus), as well as a mixture of bacteria and the fungus, “Organic” (Azotobacter chroococcum, Bacillus subtilis, Bacillus megaterium, Trichoderma harzian) was studied in two field experiments. In the experiment #1, the preparations “Azotovit” and “Phosphatovit” were delivered through a drip irrigation system in various combinations with mineral fertilizers. In experiment #2, the preparation “Organic” was also applied to the soil with irrigation water, also in combination with the mineral fertilizer. When solely applied, none of the studied preparations changed significantly the soil nutrient content and yield as compared with the variant fertilized by the mineral fertilizer at the maximum studied application rate. The combination of the microbial biofertilizer and mineral fertilizers applied at a low rate ensured the yield commensurate to that obtained under high-rate application of the mineral fertilizer.

scholarly journals Сomparative evaluation of the effect of the bacterial biopreparation phytop 8.67–8 and the bacterial-humic complex agrofit-humate-b (bcg “afg-b”) on the growth and development of kiwano varieties green dragon

2021 ◽  
pp. 67-76
Author(s):  
A. V. Pastukhova ◽  
I. Е. Lavrishchev ◽  
A. F. Petrov ◽  
V. Р. Tsvetkova ◽  
V. S. Maslenikova
Keyword(s):  
Chemical Composition ◽  
Growth And Development ◽  
Growing Season ◽  
Fertilizer Application ◽  
Mineral Fertilizers ◽  
Yield And Quality ◽  
Novosibirsk Region ◽  
Positive Effect

The results of studying the influence of various biological and mineral fertilizers: Phytop 8.67, Agrofit-humate-B (BKG «AFG-B”) – on the growth and development of plants, as well as the yield and quality of kiwano fruits of the Green Dragon variety are presented. During the study, phenological and morphological observations, accounting and evaluation of the quality of the obtained fruits, analysis of the chemical composition of the fruits were carried out. The obtained data confirmed the positive effect of the use of biological preparations on the structure and quality of the resulting crop of kiwano, which will allow us to recommend this crop for cultivation in the territory of the Novosibirsk region, using experimentally proven methods and norms of fertilizer application during the growing season of plants.

scholarly journals Agronomical Field Testing of New Kinds of Multicomponent Mineral Fertilizers

2014 ◽  
Vol 17 (1) ◽  
pp. 79
Author(s):  
K.T. Zhantasov ◽  
Z.U. Myrhalykov ◽  
S.M. Moldabekov ◽  
M.K. Zhantasov ◽  
B.T. Omarov ◽  
...  
Keyword(s):  
Sandy Loam ◽  
Mineral Fertilizer ◽  
Field Testing ◽  
Fertilizer Application ◽  
Sandy Loam Soil ◽  
Mineral Fertilizers ◽  
Essential Difference ◽  
Loam Soil ◽  
Phosphorus And Potassium ◽  
Nitrogen Phosphorus

Analysis of modern scientific literature and patents has shown the absence of acid-free production technology of a mechanically activated multicomponent mineral fertilizer containing water-holding substances. Experimental researches connecting with mechanochemical activation and physicochemical properties of Karatau phosphorites prove a possibility of development of a new multicomponent mineral fertilizer. Application of inorganic and organic activators considerably improves qualities of fertilizers because the developed fertilizer mixtures contain nitrogen, phosphorus, potassium, humate and microelements. The suggested technology intends to use wastes of coal mining that leads to presence of humates and microelements in the end product. It was determined, that content of total nitrogen, phosphorus and potassium depends on a form of nitrogen-phosphorus-potassium-containing substances. The given article contains data of researches connecting with use of multicomponent mineral fertilizers in field conditions for cotton cultivation on irrigated light sierozems consisting of soil-forming rocks of loess and loess-type clay loams. The research results show the increase of soil’s fertility and cotton’s productivity. Studying of agronomic efficiency of the new kinds of mechanically activated multicomponent mineral fertilizers at the cultivation of a bean-cereal mixture has been carried out in the Negorelsk experimental nursery-garden of the Belarus State Technical University on a sod-podzol sandy-loam soil and has shown the essential influence on productivity and quality of the bean-cereal mixture. The researches fulfilled on a sod-podzol sandy-loam soil have revealed the essential increase of key indicators of feed productivity. Application of the mineral fertilizers has promoted increase of nitrogen, phosphorus and potassium content in green plants. In so doing content of calcium and magnesium in green mass depends from quantity of the fertilizer used to a smaller extent. An essential difference of crop capacity and feed productivity indicators depending on forms of the applied mineral fertilizers has not been found.

scholarly journals Common bean (Phaseolus vulgaris L.) productivity in response to different fertilization strategies

2017 ◽  
Vol 11 (4) ◽  
pp. 296 ◽  
Author(s):  
Wellington Da Silva Toledo ◽  
João Paulo Agápto ◽  
Gustavo Fonseca De Almeida
Keyword(s):  
Common Bean ◽  
Production Management ◽  
Mineral Fertilizer ◽  
Fertilizer Application ◽  
Mineral Fertilizers ◽  
Mineral Fertilization ◽  
Manure Compost ◽  
Sheep Manure ◽  
Pod Length ◽  
Pod Number

The feasibility of reducing non-renewable natural resources use in agriculture, associated with the need for ecologically-appropriate of organic waste disposal has become an important element in planning more sustainable agricultural systems. Consequently, the aim of the current study was to evaluate the response of the common bean, growing in an Eutrophic Latosol in the city of Buri-SP, to the application of organic and mineral fertilizers. An experiment was carried out in the 2015 agricultural year, using a randomized block design with 4 replicates and 5 treatments, these being: 1 - mineral fertilizer; 2 - organomineral fertilizer; 3 - sheep manure compost; 4 - chicken bedding compost, and control (soil without fertilizer application). The tested variables were: pod length (cm); per plant pod number; per pod seed number; mass of 100 grains (g); and grain yield (kg ha-1). Organomineral fertilizer provided the most significant increase in pod length, per plant pod number, and yield compared to the other treatments, except for sheep manure compost, where productivity did not differ. In addition, with the exception of mass per 100 seeds, there was no difference between treatments using organic fertilization and mineral fertilizer. Under the current study´s experimental conditions, organomineral fertilizer and sheep manure compost produced the highest productivity for common beans. Thus, mineral fertilization can be replaced by organic or organomineral alternatives, so helping to produce more sustainable production management and help reduce environmental impacts.

scholarly journals Dynamics of soil fertility parameters in the Zaporizhzhya region and the ways of its restoration

2020 ◽  
Vol 4 (2) ◽  
pp. 353-362
Author(s):  
O. L. Romanenko ◽  
I. S. Kushch ◽  
A. V. Agafonova ◽  
Yu. O. Tenyukh ◽  
M. M. Solodushko ◽  
...  
Keyword(s):  
Soil Fertility ◽  
Crop Yields ◽  
Weighted Average ◽  
Mineral Fertilizer ◽  
Fertilizer Application ◽  
Nitrogen Fertilizers ◽  
Phosphorus Compounds ◽  
Mineral Fertilizers ◽  
Organic And Mineral Fertilizers ◽  
Positive Balance

During 2000–2018, the results of the application of organic and mineral fertilizers in dynamics and their effect on the content of humus and nutrients in the soils of the Zaporizhzhya region were reviewed. To control the state of soil fertility use the calculation of the balance of humus and nutrients. This makes it possible to determine the extent to which the application of nutrients with fertilizers covers their removal by crop yields. Negative tendencies have been identified, which have led to the deterioration of soil fertility in the Zaporizhia region. Measures are proposed to achieve a deficit-free balance of humus and nutrients. On average, in 2000–2018, the level of mineral fertilizer application in the Zaporizhia region remained low – 38 kg/ha (nitrogen – 28 kg, phosphorus – 7, potassium – 3 kg), and manure – only 0.2 t/ha. According to the results of agrochemical certification of agricultural lands, the dynamics of changes in the content of humus, easily hydrolyzed nitrogen, mobile compounds of phosphorus and potassium over the past 18 years has been determined. The average weighted content of humus in the soils in the VIII round was 3.44 %, IX – 3.52, X – 3.40, XI (2016–2018) – 3.57 %, which indicates the stability of this indicator. The weighted average nitrogen content, which is easily hydrolyzed during all rounds, has close values (83.6–90.3 mg/kg) and corresponds to a low level of its supply. The content of mobile phosphorus compounds during the VIII – IX rounds was quite stable (97.1–101.6 mg/kg), and in the X–XI rounds there was even an increase to 123.3–123.4 mg/kg. The phosphorus regime of soils is stable and corresponds to the increased level of security, except for the ninth round (average). Potassium regime of the soil for eighteen years also remains stable and refers to a high level of security (159.6–176.8 mg/kg). The balance of humus and nutrients in the soils of the region remains negative. There is a tendency of positive changes if we compare the results for the first (2003–2014) and second (2003–2018) periods. Thus, to achieve a positive balance of humus it is necessary to apply 2 t/ha of straw (+400 kg/ha), 20 kg/ha of nitrogen fertilizers and 6.4 t/ha of manure, and in 2003–2018 – respectively 2 t / ha straw (+400 kg/ha), 20 kg/ha of nitrogen, 5.8 t/ha of manure. Key words: soil, balance, dynamics, humus, fertility, organic and mineral fertilizers.

scholarly journals Influence of nitrogen and mineral fertilizer application rates for legumes on the number of stems and the amount of NPK in the soil

2021 ◽  
Vol 258 ◽  
pp. 04031
Author(s):  
Abduvali Iminov ◽  
Furkatbek Achilov ◽  
Akhmad Kurbonov ◽  
Dilnoza Usmonova
Keyword(s):  
Plant Root ◽  
Mineral Fertilizer ◽  
Fertilizer Application ◽  
Mineral Fertilizers ◽  
Application Rates ◽  
Legume Seeds ◽  
Agrochemical Properties ◽  
Glycine Max L ◽  
Number Of Stems ◽  
Endogenous Bacteria

Inoculation of seeds of legumes (soybean - Glycine max L., mung bean - Phaseolus aureus L., wild beans - Phaseolus) grown as a secondary crop after winter wheat before sowing with nitragin and application of mineral fertilizers in different doses affected the amount of endogenous bacteria formed in the plant root as well as the agrochemical properties of the soil. Inoculation of legume seeds with nitragin before sowing and application of mineral fertilizers at different rates increased the amount of humus in the topsoil (0-30 cm) layer by 0.025-0.029% compared to the initial values, and the total nitrogen content by 0.009-0.012%. The formation of endogenous bacteria in the root of the plant was inoculated with nitrogen before sowing the seeds of soybean, moss, bean crops. The amount of legumes was 22.7-36.7 pieces in the variant, in which the mineral fertilizers N30 R90 K60 kg/ha was applied, whereas it was 12.0-15.6 pieces in the variant without any mineral fertilizers.

Soil conditions and yield of repeatedly grown apple orchard depending on long-term fertilizer application

2021 ◽  
Vol 1 (98) ◽  
pp. 34-47
Author(s):  
P. H. Kopytko ◽  
◽  
R. V. Yakovenko
Keyword(s):  
Soil Fertility ◽  
Organic Fertilizer ◽  
Humus Content ◽  
Mineral Fertilizer ◽  
Fertilizer Application ◽  
Mineral Fertilizers ◽  
Soil Conditions ◽  
Apple Trees ◽  
The Impact

The issue of scientifically sound fertilizer application in fruit plantations, which are long-term and re-grown in one place remains insufficiently studied. To solve this problem is possible only in long-term stationary studies, as the impact of different fertilizer systems on changes in soil properties and tree productivity for a long period of their use. The results of researches of long-term fertilizer influence on the main fertility indices of dark gray podzolic heavy loam soil and productivity of repeatedly grown apple trees of Idared varieties on seed and vegetative (M4) rootstocks and Calville snow on seedling rootstock are considered. During the 85-year period of growing the first and second generation of apple trees in the experimental garden, the organic fertilizer (40 t/ha of cattle manure), mineral fertilizer (N120P120K120) and their combination (20 t/ha of manure + N60P60K60) were applied in the old plantation every two years in autumn in plowing in rows at 18–20 cm, and in the new repetition: manure, phosphorus and potassium fertilizers as well, and nitrogen fertilizer in half doses annually in spring for cultivation or disk plowing to a depth of 12–15 cm. As a result of research it was found that organic fertilizer better than mineral fertilizers provided the formation of soil fertility (humus and mobile compounds and forms of nutrients, soil reaction) and yield capacity of experimental apple trees, which for all years of fruiting exceeded the total yield of Calville snow and Idared on seedling and vegetative rootstocks, respectively, by 34.8, 27.7 and 23.4 % compared with the yield of the control non-fertilized areas and 16.0, 15.8 and 13.2 % – on those fertilized with N120Р120К120. Similar parameters of soil fertility indicators are formed by the organo-mineral fertilizer system with systematic long-term application of half the norms of organic and mineral fertilizers of manure 20 t/ha together with N60P60K60. However, the mineral system (N120P120K120) significantly less increases the humus content and content of macronutrients available for plant nutrition and does not enrich the soil with trace elements, acidifies the reaction of the soil environment

scholarly journals Assessment of Recycling-derived Fertilizers as an Alternative to Mineral Fertilizers – Effects on the Soil Microbiome

2020 ◽  
Vol 2 (7A) ◽  
Author(s):  
Lea Deinert ◽  
Israel Ikoyi ◽  
Achim Schmalenberger
Keyword(s):  
Mineral Fertilizer ◽  
Fertilizer Application ◽  
Soil Microbiome ◽  
Most Probable Number ◽  
Mineral Fertilizers ◽  
Probable Number ◽  
Soil P ◽  
Pot Trial ◽  
Living Organisms ◽  
The Impact

Phosphorus (P) is an essential macronutrient for all living organisms and is applied as fertilizer in agroecosystems to improve crop growth. Recycling-derived fertilizers (RDFs) have been developed for nutrient recovery from Europe’s largest waste streams as a sustainable alternative to this finite resource. The impact of four RDFs (two ashes, two struvites) on the soil microbiome in comparison with a P-free control and triple super phosphate (TSP) as mineral fertilizer was investigated in a pot trial and a subsequent microcosm trial (subset of samples). For both experiments perennial ryegrass was cultivated for 54 days. The pot trial was conducted at P fertilization rates of 20 and 60 kg P ha-1 in quadruplicates. After the pot harvest the bulk soil was stored until the microcosm trial was conducted, using the control, TSP and the two ashes at 60 kg P ha-1 in six replicates. Pot trial results showed highest P bioavailability from struvites at high P rates, also resulting in higher biomass yield on average. Furthermore, P solubilization capabilities from tri-calcium phosphate was enhanced in the RDFs treatments, while the TSP treatments were negatively affected. For the microcosm trial, most probable number (MPN) analysis showed that phytate-utilizing bacterial abundance was significantly increased in one of the ashes and had also remained higher in the RDF treatments after storage. Understanding the effects of recycling-derived fertilizer application on the soil P cycle is vital for developing a more sustainable agriculture.

scholarly journals Sustainability of the agroecosystem in the application of fertilizers and biopreparations

2019 ◽  
pp. 35-37
Author(s):  
A. A. Alferov ◽  
L. S. Chernova
Keyword(s):  
Spring Wheat ◽  
Soil Nitrogen ◽  
Podzolic Soil ◽  
Growing Season ◽  
Mineral Fertilizers ◽  
Positive Trend ◽  
Total Removal ◽  
Maximum Permissible Level ◽  
Net Mineralization ◽  
Nitrogen Flows

The formation of biomass of spring wheat on sod-podzolic soil is mainly due to soil nitrogen, the share of which reaches 4/5 of the total removal of the element when using mineral fertilizers. Inoculation increases the nitrogen content of fertilizers by 4.5%, reduces losses by 7%; there is some tendency to increase the immobilization of N fertilizers. The sustainability of the agroecosystem is characterized by nitrogen flows. During the growing season of spring wheat, the amount of mineralized nitrogen depending on the fertilizer reached 17.4-18.0 g/m2, while the amount of remobilized nitrogen was 4.4-4.9 g/m2, net-mineralization (N-M) – 13.1 g/m2. The inoculation of RA seeds does not significantly affect the processes of mineralization (M) and remobilization (RI), only a positive trend of growth of mineralization and remobilization of nitrogen in the soil is observed. The use of nitrogen fertilizer leads agroecosystem in a resistant state-the zone of the maximum permissible level of exposure (RI:M=25%, N-M:RI=3.0). On average, over the years of research, inoculation of RA seeds does not change the indicators of sustainability of agroecosystem when applying fertilizers.

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