Transformation of Trioctahedral Mica in the Upper Mineral Horizon of Podzolic Soil during the Two-Year-Long Field Experiment

2018 ◽  
Vol 51 (7) ◽  
pp. 843-856 ◽  
Author(s):  
I. I. Tolpeshta ◽  
T. A. Sokolova ◽  
A. A. Vorob’eva ◽  
Yu. G. Izosimova
Keyword(s):  
Field Experiment ◽  
Podzolic Soil ◽  
Mineral Horizon ◽  
Trioctahedral Mica

scholarly journals Phenological phases of buckwheat (Fagopyrum esculentum Mnch.) in the primary and secondary crop depending on seeding rate

2012 ◽  
Vol 64 (4) ◽  
pp. 213-226
Author(s):  
Dariusz Juszczak ◽  
Marian Wesołowski
Keyword(s):  
Field Experiment ◽  
Crop Rotation ◽  
Podzolic Soil ◽  
Weather Conditions ◽  
Fagopyrum Esculentum ◽  
Loamy Sand ◽  
Seeding Density ◽  
Growth Stages ◽  
Seeding Rate ◽  
Phenological Phases

This paper presents the growth stages of buckwheat grown as a primary or secondary crop as well as using three seeding rates. A field experiment was conducted in the years 2003-2004 and in 2006 on podzolic soil derived from slightly loamy sand. Phenological observations were made at 5-day intervals, from the time of buckwheat emergence (in the primary crop around 28 May, in the secondary crop 7 June), on selected and properly marked plants. The buckwheat plants were harvested when more than 80% of buckwheat seeds on them were brown. The duration of particular growth stages of buckwheat are presented in phenological diagrams. It was found that crop rotation treatment and weather conditions affected significantly the time of occurrence of the phenological phases of buckwheat, but these phases were less dependent on seeding density. A rainfall deficit in 2006 caused a delay in particular growth stages compared to the previous years.

scholarly journals Effects of Long-term Fertilization Systems on Heavy Metals Residues in Sod-podzolic Soil and Oats Yield

2021 ◽  
Author(s):  
D.A. Postnikov ◽  
G.E. Merzlaya ◽  
A.D. Fedulova
Keyword(s):  
Heavy Metals ◽  
Field Experiment ◽  
Podzolic Soil ◽  
Organic Fertilizer ◽  
Cadmium Content ◽  
Calculated Dose ◽  
Mineral Components ◽  
Phosphorus And Potassium ◽  
The Village

Background: The paper presents the results of studies conducted on the basis of the former Smolensk branch of Pryanishnikov Institute of Agrochemistry, in the village of Olsha, Smolensk district, Smolensk region. In a long field experiment, various fertilizer systems were studied, their effect and aftereffect on the qualitative and quantitative crop yield, soil properties.Methods: A stationary field experiment was established in 1978. The aftereffect of fertilization systems on oats has been studied since 2009. The aftereffect was studied in 2015-2016 and 2017. With one dose of organic fertilizer (compost based on cattle manure - cattle), over 30 years of experience, 17.4 tons of organic matter, 435 kg of total nitrogen, 198 kg of phosphorus (P2O5), 621 kg of potassium (K2O) entered the soil. A single calculated dose of nitrogen, phosphorus and potassium corresponded to 25.5 kg of active ingredient per ha-1. Result: With prolonged use of fertilizers, the content of heavy metals in the soil did not exceed the calculated permissible concentration. However, at a fivefold norm (N150P150K150 + 15 t ha-1), the cadmium content was overestimated. An ecologically justified dose of aftereffect in the Smolensk region on sod-podzolic soil should be considered a fourfold dose of mineral components and compost (N120P120K120 + 12 t ha-1).

Влияние макро- и микроудобрений на семенную продуктивность и посевные качества семян цикория корневого

2018 ◽  
Author(s):  
O.M. Vyutnova ◽  
E.A. Evseeva ◽  
N.A. Ratnikova
Keyword(s):  
Field Experiment ◽  
Seed Yield ◽  
Podzolic Soil ◽  
Chicory Root ◽  
Macro And Micronutrients ◽  
System Of Fertilizers

В полевом опыте на дерново-подзолистой почве выявлена эффективность использования макро и микроудобрений. Система удобрений позволяет увеличить урожайность семян цикория корневого с 0,23 т/га до 0,29 т/га, т. е. более чем на 26%.In a field experiment on sod-podzolic soil revealed the efficiency of macro and micronutrients. System of fertilizers allows to increase the seed yield of chicory root from 0.23 t/ha to 0.29 t/ha, i. e. more than 26%.

Biotite weathering in podzolic soil under conditions of a model field experiment

2010 ◽  
Vol 43 (10) ◽  
pp. 1150-1158 ◽  
Author(s):  
T. A. Sokolova ◽  
I. I. Tolpeshta ◽  
I. V. Topunova
Keyword(s):  
Field Experiment ◽  
Podzolic Soil ◽  
Model Field ◽  
Biotite Weathering

scholarly journals Remediation of agro-sod-podzolic soil contaminated with nickel

2019 ◽  
pp. 31-35
Author(s):  
A. V. Lednev ◽  
A. V. Lozhkin ◽  
G. A. Pozdeev
Keyword(s):  
Field Experiment ◽  
Contaminated Soil ◽  
Crop Production ◽  
Podzolic Soil ◽  
Sodium Sulfide ◽  
Sharp Decrease ◽  
Loamy Soil ◽  
Entire Observation Period ◽  
Mobile Forms ◽  
Observation Period

The results of many years field experiment on the remediation of agro-sod-podzolic loamy soil (albeluvisoils) contaminated with nickel are analyzed. Various doses of ameliorants and fertilizers were studied as ameliorative additives: limestone and phosphorite flour, superphosphate, sodium sulfide, peat and zeolite. Studies have shown that the introduction of all studied reclamation additives into contaminated soil significantly reduced the content of mobile forms of nickel in it. The highest efficiency during the entire observation period was shown by limestone flour at a dose of 12 t/ha; it reduced the degree of its mobility by 48-69%. Nickel pollution had a strong toxic effect on plants, which led to a sharp decrease in their productivity (by 76-87%) and increased accumulation of nickel in the grain. The introduction of the studied ameliorants and fertilizers significantly improved these indicators, but they still did not reach the control (without pollution), which indicates the presence of a very serious problem of crop production on land contaminated with nickel.

Initial Stages of Smectite Chloritization in the Humus-Eluvial Horizon of Podzolic Soil in the Model Field Experiment

2020 ◽  
Vol 53 (8) ◽  
pp. 1154-1164
Author(s):  
I. I. Tolpeshta ◽  
T. A. Sokolova ◽  
Yu. G. Izosimova ◽  
M. K. Postnova
Keyword(s):  
Field Experiment ◽  
Podzolic Soil ◽  
Eluvial Horizon ◽  
Model Field

EFFICIENCY OF NEW VARIETIES OF BEAN GRASSES IN MEADOW FARMING

2020 ◽  
Author(s):  
Anel Kutuzova ◽  
Elena Provornaya ◽  
Ekaterina Sedova ◽  
Nadezhda Tsybenko
Keyword(s):  
Field Experiment ◽  
Podzolic Soil ◽  
Net Income ◽  
Legume Seeds ◽  
New Varieties

Based on the field experiment conducted in 2014–2019, it was found that the productivity of leguminous-grassy stands on sod-podzolic soil was increased by 97–120% compared to cereal grass on average over five years of use. The increase in the collection of edible feed per 1 kg of legume seeds was 1.2–5.1 thousand feed units for this period. Payback 1 ruble costs of seeds of legumes due to the conditionally net income reached 41–44 rubles when using alfalfa and 76–173 rubles when using creeping clover and meadow clover.

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