EFFECT OF DEEP PLOWING ON THE FERTILITY STATUS OF BLACK SOLONETZ SOILS

1971 ◽  
Vol 51 (3) ◽  
pp. 411-414 ◽  
Author(s):  
R. R. CAIRNS
Keyword(s):  
Relative Effectiveness ◽  
Field Studies ◽  
Black Soil ◽  
Climatic Conditions ◽  
Soil Types ◽  
Fertility Status ◽  
Soil Zone ◽  
Deep Plowing ◽  
Solonetz Soil

Field studies were established to measure the relative effectiveness of deep plowing and fertilization on the productivity of four Solonetz soil types in the Black soil zone, under quite similar climatic conditions. On three of the Solonetz soil types, fertilization was essentially as effective as deep plowing in stimulating productivity, and the effects of both treatments on crop chemistry were somewhat similar. The soil on which fertilization had little effect and deep plowing had a great effect had the most unproductive Bn horizon of any of the soils under study.

EFFECT OF SOLONETZ SOIL HORIZON MIXING ON ALFALFA GROWTH

1970 ◽  
Vol 50 (3) ◽  
pp. 367-371 ◽  
Author(s):  
R. R. CAIRNS
Keyword(s):  
The Other ◽  
Soil Types ◽  
Soil Horizon ◽  
Infiltration Rates ◽  
Ap Horizon ◽  
Deep Plowing ◽  
Solonetz Soil

Samples of the Ap, Bn and Csk horizons of four Solonetz soil types were mixed to simulate the effect of deep plowing. Half of the mixed horizon samples were leached with water while the other half were not. Alfalfa was grown in the greenhouse on samples of Ap, Bn and mixed horizon soils. The alfalfa was harvested and chemically analyzed. The soil was subjected to certain chemical and physical determinations. Under conditions of adequate moisture the mixed horizons produced more alfalfa than the Ap horizon in two of the four soils. Leaching the mixtures resulted in lower alfalfa yields. Mixed horizon samples had higher infiltration rates, and lower breaking strengths than Bn horizon samples.

SELECTION WORK TO IMPROVE PRODUCTIVE AND BREWING QUALITIES OF SPRING BARLEY

1970 ◽  
pp. 38-40
Author(s):  
О. V. Levakova ◽  
L. М. Eroshenko ◽  
А. N. Eroshenko
Keyword(s):  
Protein Content ◽  
Spring Barley ◽  
Humus Content ◽  
Stability Index ◽  
Field Studies ◽  
Climatic Conditions ◽  
Extract Content ◽  
Labile Phosphorus ◽  
Loam Soil

The article presents and analyzes data of competitive varietal testing of promising varieties and lines of spring barley for yield and brewing qualities. Field studies were conducted in 2014–2017 on dark gray forest heavy loam soil. Agrochemical parameters are total nitrogen – 0.24%, humus content in a layer of 0-40 cm (according to Tyurin) – 5.19%, hydrolysis nitrogen – 123.5 mg / kg, salt extract pH – 4.92 mg-eq / 100g; labile phosphorus - 34.6 mg / 100g, labile potassium – 20.0 mg / 100g. The forerunner is winter wheat. Meteorological conditions in the years of research differed from each other and from the average long-term value. Barley samples were assessed by the protein content in the grain (GOST 10846-91), extract content (GOST 12130-77), weight 1000 grains (GOST 10842-89). Ecological plasticity was determined by the method proposed by E.D. Nettevich, A.I. Morgunov and M.I. Maksimenko, stability index (Ľ) by A. A. Gryaznov, indicator of stability level (Puss) by E. D. Nettevich and A. I. Morgunov. The main measure for assessing quality indicators is protein content. Many other biochemical and technological features of grain depend on its level. The experimental data convincingly testify to the significant influence of the soil and climatic conditions on the yield and, especially, on the brewing qualities of barley in the conditions of the Central Region of the Nonchernozem Zone. According to the studied traits, new valuable varieties Nadezhny, Sir, Noble and selection lines 141 / 1-09 h 746, 23 / 1-10 h 784, distinguished by high adaptability and resistance to adverse environmental factors, have been identified.

scholarly journals A Quantitative Analysis of Factors Influencing Organic Matter Concentration in the Topsoil of Black Soil in Northeast China Based on Spatial Heterogeneous Patterns

2021 ◽  
Vol 10 (5) ◽  
pp. 348
Author(s):  
Zhenbo Du ◽  
Bingbo Gao ◽  
Cong Ou ◽  
Zhenrong Du ◽  
Jianyu Yang ◽  
...  
Keyword(s):  
Land Use ◽  
Organic Matter ◽  
Soil Erosion ◽  
Soil Type ◽  
Northeast China ◽  
Black Soil ◽  
Factors Affecting ◽  
Soil Zone ◽  
Rainfed Farming ◽  
Study Results

Black soil is fertile, abundant with organic matter (OM) and is exceptional for farming. The black soil zone in northeast China is the third-largest black soil zone globally and produces a quarter of China’s commodity grain. However, the soil organic matter (SOM) in this zone is declining, and the quality of cultivated land is falling off rapidly due to overexploitation and unsustainable management practices. To help develop an integrated protection strategy for black soil, this study aimed to identify the primary factors contributing to SOM degradation. The geographic detector, which can detect both linear and nonlinear relationships and the interactions based on spatial heterogeneous patterns, was used to quantitatively analyze the natural and anthropogenic factors affecting SOM concentration in northeast China. In descending order, the nine factors affecting SOM are temperature, gross domestic product (GDP), elevation, population, soil type, precipitation, soil erosion, land use, and geomorphology. The influence of all factors is significant, and the interaction of any two factors enhances their impact. The SOM concentration decreases with increased temperature, population, soil erosion, elevation and terrain undulation. SOM rises with increased precipitation, initially decreases with increasing GDP but then increases, and varies by soil type and land use. Conclusions about detailed impacts are presented in this paper. For example, wind erosion has a more significant effect than water erosion, and irrigated land has a lower SOM content than dry land. Based on the study results, protection measures, including conservation tillage, farmland shelterbelts, cross-slope ridges, terraces, and rainfed farming are recommended. The conversion of high-quality farmland to non-farm uses should be prohibited.

scholarly journals ZEOLITES AND FERTILIZERS ON THEIR BASIS IN SOYBEAN CULTIVATION TECHNOLOGY IN THE VOLGA FOREST STEPPE

2021 ◽  
Vol 250 ◽  
pp. 88-94
Author(s):  
A. Kh. Kulikova ◽  
◽  
N. G. Zakharov ◽  
N. A. Khairtdinova ◽  
◽  
...  
Keyword(s):  
Amino Acids ◽  
Biological Activity ◽  
Seed Quality ◽  
Mineral Fertilizer ◽  
Field Studies ◽  
Soil Improvement ◽  
Black Soil ◽  
Forest Steppe ◽  
Experimental Field ◽  
Ulyanovsk Region

Experimental field studies were carried out on the experimental field of Ulyanovsk State Agrarian University in 2018-2020. The experiment scheme in 2019 (laid in 2018) consisted of 4 variants: 1. Control (without fertilizers); 2. Zeolite in pure form, 500 kg / ha; 3. Organic mineral fertilizer, obtained by enriching zeolites with amino acids, 500 kg / ha; 4. Zeolite 500 kg / ha + N40 (carbamide at the dose of 40 kg of nitrogen per 1 ha). In 2020, the experiment was supplemented with four variants in order to identify more appropriate doses of fertilization (zeolite enriched with amino acids, 250 kg / ha; zeolite enriched with amino acids, 500 kg / ha; zeolite enriched with carbamide, 250 kg / ha; zeolite enriched with urea , 500 kg / ha). The experiments were carried out in 3-fold repetition with a randomized placement of plots. The effect of zeolite from Yushansk deposit of Ulyanovsk region and fertilizers based on it enriched with amino acids and urea were studied in the experiment, as well as their effect on general biological activity of leached black soil, on its agrochemical parameters, photosynthetic activity of soybean crops, yield and seed quality. A significant influence of experimental fertilizers on biological activity of the soil, improvement of nutrient regime, as well as the ability of zeolite to neutralize soil acidity was found. Improvement of the soil environment in case of application of zeolite enriched with amino acids and urea as a fertilizer contributed to an increase of soybean yields by 6-14% and by 12-31% to improvement of the product quality. With an increase of the dose of fertilizers, the yield of soybean seeds increased, but not proportionally.

scholarly journals Ronald oat

2003 ◽  
Vol 83 (1) ◽  
pp. 101-104 ◽  
Author(s):  
J. W. Mitchell Fetch ◽  
P. D. Brown ◽  
S. D. Duguid ◽  
J. Chong ◽  
S. M. Haber ◽  
...  
Keyword(s):  
Avena Sativa ◽  
Barley Yellow Dwarf Virus ◽  
Black Soil ◽  
Kernel Weight ◽  
Crown Rust ◽  
Good Resistance ◽  
Canadian Prairies ◽  
Soil Zone ◽  
Cultivar Description ◽  
Yellow Dwarf Virus

Ronald is a high-yielding, white-hulled, tall semidwarf oat (Avena sativa L.) cultivar with greatly improved panicle emergence compared with previously tested semidwarf lines. Ronald is postulated to carry the crown rust resistance combination Pc38, Pc39 and Pc68, which is highly effective against most of the present crown rust races on the Canadian prairies. It has very good resistance to loose and covered smut and good resistance to most of the prevalent races of stem rust, due to the likely presence of Pg2, Pg9 and Pg13, and moderate tolerance to barley yellow dwarf virus. Ronald has good kernel characteristics, such as high test weight, kernel weight and percent plump kernels. The grain characteristics exhibited by Ronald including hull-to-groat ratio, protein content and oil content should make it suitable for milling. It has excellent resistance to lodging. Ronald is well adapted for the oat growing areas of western Canada and in particular the Black Soil Zone of Manitoba and Saskatchewan where oat crown rust is prevalent. Key words: Oat, Avena sativa L., cultivar description, semidwarf oat, disease resistance, milling oat

scholarly journals Buildings’ Air Quality in High Traffic

2015 ◽  
Vol 4 (6) ◽  
pp. 23-26
Author(s):  
Литвинова ◽  
Natalya Litvinova
Keyword(s):  
Carbon Monoxide ◽  
Air Quality ◽  
Western Siberia ◽  
Residential Buildings ◽  
Field Studies ◽  
Climatic Conditions ◽  
Sources Of Pollution ◽  
Mobile Sources ◽  
Air Intake ◽  
External Sources

The article presents the results of field studies of air quality depending on mobile sources of pollution. Studies of the carbon monoxide concentration was conducted for the climatic conditions of the South of Western Siberia. The object of the study was residential buildings. The studies were conducted under unfavorable wind speed. Processing of experimental data allowed to obtain the calculated dependences of dimensionless concentration of carbon monoxide (II) on the height of building’s facade under emissions from highways. According to the results of research a nomogram was constructed to determine the optimal air intake height of buildings located near roads of various traffic intensity. Research results and given recommendations allow considering external sources of pollution when designing ventilation of a building.

Nutritive value of kochia (Kochia scoparia) hay or silage grown in a Black soil zone in northeastern Saskatchewan for sheep

1991 ◽  
Vol 71 (1) ◽  
pp. 107-114 ◽  
Author(s):  
Z. Mir ◽  
S. Bittman ◽  
L. Townley-Smith
Keyword(s):  
Dry Matter ◽  
Nutritive Value ◽  
Black Soil ◽  
Kochia Scoparia ◽  
Soil Zone ◽  
Randomized Design ◽  
Gross Energy ◽  
Completely Randomized Design ◽  
Voluntary Intake ◽  
High Forage

Two trials were conducted to evaluate the voluntary intake and digestibility of kochia (Kochia scoparia) as hay or silage for sheep. In Trial 1, kochia (KOC) hay substituted for alfalfa hay (AA) at 0, 25, 50 or 75% of complete diets, or 50% AA or 50% KOC with barley (BAR) were fed to 24 mature wethers in a completely randomized design experiment. As the level of KOC in the diet increased, dry matter intake (DMI) of wethers decreased linearly. There were no differences (P > 0.05) in dry matter or fiber digestibilities among the four diets containing AA and KOC hay. Nitrogen and gross energy digestibilities increased linearly (P < 0.05) with decreasing levels of dietary KOC. In trial 2, KOC silage prepared from two ecotypes of KOC (southern and northern), cut at two different dates and fed in a 50:50 combination with AA silage were compared with a diet containing AA silage. DMI and nutrient digestibilities of the AA silage diet were higher (P < 0.05) than those for the diets containing KOC. Results indicate that KOC hay can be fed in high forage or concentrate diets at levels between 25 and 50% of the diet without adverse effects on intake or digestibility. Results also demonstrate that KOC can be preserved by ensiling and that KOC silage can be used in combination with AA silage in diets for sheep. Key words: Kochia, sheep, digestibility, hay, silage

Hygienic assessment of potential ecotoxicological risk of the use of new insecticide spiromesifen in agriculture of Ukraine

2021 ◽  
pp. 62-67
Author(s):  
I.V. Tkachenko ◽  
Keyword(s):  
Chemical Properties ◽  
Terrestrial Ecosystems ◽  
Field Studies ◽  
Climatic Conditions ◽  
Climatic Zones ◽  
Ecotoxicological Risk ◽  
Environmental Objects ◽  
Physico Chemical ◽  
Consumption Rates ◽  
Agricultural Use

Objective: The aim of our work was to study the potential ecotoxicological hazard of a new chemical from the class of tetramic and tetronic acid derivatives - the insecticide spiromesifen, taking into account its physico-chemical properties and impact on the environmental objects. Materials and methods: An assessment of the potential danger of spiromesifen use for ecosystems was carried out on the basis of the calculation of the ecotoxicological hazard (ecotox) by N.N. Melnikov’s method. The field studies were carried out in different agro-climatic zones of Ukraine. The treatment of vineyards and apple trees was carried out at the maximum consumption rates of spiromesifen. Results: According to the literary data and our research, it was found that in the soil-and-climatic conditions of Ukraine, the ecotoxicological risk, when using the new insecticide spiromesifen, is 10,000 times and 7,000 times low than the analogous characteristics of DDT. Ecotox abamectin is 154 times low than ecotox DDT. This makes preparations, based on these substances, more promising and competitive among other pesticides in agricultural use. We can conclude that spiromesifen does not pose a threat to terrestrial ecosystems and health of the population.

FOLIAR PHOTOSYNTHETIC POTENTIAL OF JERUSALEM ARTICHOKE AGROCENOSIS

2020 ◽  
Vol 15 (9) ◽  
pp. 1224-1232
Author(s):  
Y.S. Koroleva ◽  
Keyword(s):  
Jerusalem Artichoke ◽  
Growing Season ◽  
Black Soil ◽  
Total Power ◽  
Soil Zone ◽  
Photosynthetic Potential ◽  
Second Year ◽  
High Yields ◽  
State Agricultural Academy

In Russian Non-Black Soil Zone, plantings of Jerusalem artichoke are capable of forming a powerful foliar photosynthetic potential in any year. However, it reaches its highest value in warm, humid years (on average, according to the experiment, 5.2–5.9 million m2 x day/ha) when 1/3 of the calculated NPK dose per yield is 400 c/ha. Higher yields of biomass, on average, in 1 year of use (502–508 c/ha), it accumulates with a foliar photosynthetic potential of 3.7–4.1 million m2 x day/ha, and in the second year (366–368 c/ha) – 2.6–2.7 million m2 x day/ha. The accumulation of the phytomass crop in Skorospelka Jerusalem artichoke variety is important not only for the total power of LFP, but also for the course of its formation during the growing season. In the studies at the Tver State Agricultural Academy, the largest part of the LFP was created during 80 days of vegetation, 40 days after germination, with a maximum within 40 days, 60 days after germination. This coincides with the period of mass plant budding. It has been proved that the formation of an excessively large foliar area of Jerusalem artichoke agrocenosis is not accompanied by an increase in yield. In humid warm years (2006), higher yields in 1 year are formed with such graphs of growth of the Jerusalem artichoke foliar area, when on the 20th day it reaches the level of 40 thousand m2 /ha, on the 40th – 70, on the 60th – a maximum of 82 thousand. m2 /ha, at the level of 60 thousand m2/ha it remains for another 50 days, and before harvesting it decreases only to 46 thousand m2 /ha. In dry warm years (2007), high yields of tubers (343–348 c/ha) in terms of organic or mineral background accumulate at lower parameters of the foliar area with maxima of 32–42 thousand m2 /ha, while maintaining such sizes for another 20–30 days, and for harvesting – 14–15 thousand m2 /ha. In wet cold years (2008), higher yields of biomass are formed when it reaches a maximum of 50–53 thousand m2 /ha on the 60th day, remains in this state for another 20 days, then decreases to 31 and by harvesting – 14.6 thousand m2 /ha.

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