scholarly journals Dependence of productivity of white lupine seeds on the foliar dressing with macro- and micronutrient fertilizers

2021 ◽  
Vol 845 (1) ◽  
pp. 012052
Author(s):  
A S Blinnik ◽  
V N Naumkin ◽  
L A Naumkina ◽  
O Yu Artemova ◽  
A N Kryukov
Keyword(s):  
Crop Production ◽  
Field Experiments ◽  
Sulfate Solution ◽  
Black Soil ◽  
Potassium Sulfate ◽  
Critical Periods ◽  
Moisture Deficit ◽  
White Lupine ◽  
Monopotassium Phosphate ◽  
Micronutrient Fertilizer

Abstract The paper presents the results of the studies on the determination of the effect of foliar dressings with macro- and micronutrient fertilizers on linear growth, the mass of air-dry matter of plants, leaf surface, the formation of a symbiotic apparatus and the yield of seeds of white lupine (Lupinualbus L.) in the conditions of black soils of the Central Black Earth region of the Russian Federation. The field experiments were carried out in 2018-2020 at the Department of Crop production, Breeding and Horticulture of Belgorod State Agrarian University. The object of the research is a high-intensity variety of white Degas lupine. The subject of the research is microfertilizer Aquamix-TV, potassium sulfate fertilizer (K2SO4), phosphate-potassium monophosphate fertilizer (KH2PO4). The weather during the years of the experiments was hot and dry. During the critical periods of the development of lupine plants, a moisture deficit was observed with the excess of heat. The soil cover of the experimental site was represented by a typical medium-thick low-humus heavy loamy black soil with a granulometric composition. The accounting area of the plot was 18 m2, the replication was fourfold and the placement was systematic. The experiment included six variants: control (without fertilizers), foliar dressing with Aquamix-TV micronutrient fertilizer, foliar dressing with potassium sulfate solution, foliar dressing with potassium monophosphate solution, foliar dressing with Aquamix-TV + potassium sulfate mixture and foliar dressing with Aquamix-TV + monophosphate mixture potassium. The analysis of the obtained data showed that the highest yield of seeds of white lupine variety Dega was obtained on variants with foliar dressing with micronutrient fertilizer Aquamix-TV in combination with potassium sulfate and monopotassium phosphate, which amounted to 3.52 and 3.51 t / ha, respectively, which is 0.52 and 0.51 t / ha or 17.3 and 17.1% more than the control variant.

scholarly journals Potential soil moisture deficit: A useful approach to save water with enhanced growth and productivity of wheat crop

2021 ◽  
Author(s):  
Shahbaz Khan ◽  
Atif Rasool ◽  
Sohail Irshad ◽  
Muhammad Bilal Hafeez ◽  
Madad Ali ◽  
...  
Keyword(s):  
Soil Moisture ◽  
Grain Yield ◽  
Crop Production ◽  
Field Experiments ◽  
Wheat Yield ◽  
Growth And Yield ◽  
Wheat Crop ◽  
Soil Moisture Deficit ◽  
Moisture Deficit ◽  
The Impact

Abstract Wheat is the main crop in the world ranks after rice and the largest grain source of Pakistan. Among several reasons for diminishing wheat yield in Pakistan, water stress throughout the growing season decreases crop production because of the short life span. Two years (2015–16 and 2016–17) field experiments were conducted to assess the impact of various water regimes (full irrigation, irrigation at 45, 60, and 75 mm potential soil moisture deficit (PSMD)) on the growth and yield of wheat. Maximum crop growth rate was recorded by application of irrigation at 45 mm PSMD. Application of irrigation at 45 mm PSMD ensured maximum radiation use efficiency regarding total dry matter production and grain yield. The maximum number of productive tillers, spike length, and grain yield were recorded under 45 mm PSDM treatment. The present results show that the effect of water is more pronounced regarding the growth and productivity of wheat. Application of irrigation at 45 mm PSMD ensures higher economical yield.

The questions of methodology of field experiments in agriculture and crop production

2018 ◽  
Vol 1 (94) ◽  
pp. 38-44
Author(s):  
А.M. Malienkо ◽  
N.E. Borуs ◽  
N.G. Buslaeva
Keyword(s):  
Labor Productivity ◽  
Crop Production ◽  
Field Experiments ◽  
Weather Conditions ◽  
High Accuracy ◽  
Experimental Plot ◽  
Increase Labor Productivity ◽  
Biometric Parameters ◽  
Field Crops ◽  
High Condition

In the article, the results of research on the methodology for conducting studies with corn culture under various methods of sowing and weather conditions. The aim of the research was to establish and evaluate the reliability and high accuracy of the experiment, with a decrease in the area's acreage and taking one plant per repetition. Based on the results of the analysis of biometric parameters and yields, the possibility of sampling from 5 to 108 plants was established statistically and mathematically to establish the accuracy of the experiment. The established parameters of sites in experiments with maize indicate the possibility of obtaining much more information from a smaller unit of area, that is, to increase labor productivity not only with tilled crops. This is the goal of further scientific research with other field crops taking 1 plant of repetitions, observing the conditions of leveling the experimental plot according to the fertility of the soil and sowing seeds with high condition. The data obtained give grounds for continuing research on the minimum space required and the sample in the experiments.

INCREASING THE PRODUCTIVITY OF YUBILEINY NOVY 142 TOBACCO BY USING THE RAIKAT START GROWTH REGULATOR IN THE CENTRAL ZONE OF KRASNODAR REGION

2020 ◽  
Keyword(s):  
Field Experiments ◽  
Central Zone ◽  
Black Soil ◽  
Plant Parts ◽  
Growth Stimulator ◽  
Russian Research Institute ◽  
Stalk Diameter ◽  
Seedling Plant ◽  
In The Beginning ◽  
Plant Length

Efficiency of new natural growth stimulator Raykat Start for seedling plant growing (tobacco) has been studied on the base of All-Russian research institute of tobacco makhorka and tobacco products. We used west-subcaucasian leached black soil on the experimental field. Laboratorial, greenhouse and field experiments have discovered that soaking seeds in solution with concentration of growth stimulator 0.0001 % during 6 hours leads to germs mass increasing by 70 %. Seeds treatment before sowing with efficient concentration of stimulator (0.0001 %) in combination with further double spraying (in basic stages ofplant development: “cotyledon” and “ready for transplanting” before pulling plants from seedbed) on plants until their total moistening of above earth plant parts leads to increasing plant length from collar to growing point by 32 %, to leaf tips - by 23 %, above earth plant mass - by 78 %, root mass - by 60 %, stalk diameter in collar part - by 25 %. It was also noticed significant decreasing of stalk and root decays (up to 52 %) in areas with plants treated by stimulator. Surviving of transplanted plants treated with Raykat Start was 95 %, they had increased growing and developing rates both in the beginning of field stage and in the end of vegetation. These led to increasing plant length, leaf area, which increased by 31 % and plant productivity which increased by 17.6 %.

scholarly journals Compost as an Option for Sustainable Crop Production at Low Stocking Rates in Organic Farming

Agronomy ◽  
2021 ◽  
Vol 11 (6) ◽  
pp. 1078
Author(s):  
Christopher Brock ◽  
Meike Oltmanns ◽  
Christoph Matthes ◽  
Ben Schmehe ◽  
Harald Schaaf ◽  
...  
Keyword(s):  
Organic Matter ◽  
Soil Organic Matter ◽  
Organic Farming ◽  
Crop Production ◽  
Potassium Sulfate ◽  
Control Treatment ◽  
Stocking Rate ◽  
Internal Resources ◽  
Compost Application ◽  
Stocking Rates

Mixed-crop-livestock farms offer the best conditions for sustainable nutrient management in organic farming. However, if stocking rates are too low, sustainability might be threatened. Therefore, we studied the development of soil organic matter and nutrients as well as crop yields over the first course of a new long-term field experiment with a mimicked cattle stocking rate of 0.6 LU ha−1, which is the actual average stocking rate for organic farms in Germany. In the experiment, we tested the effects of additional compost application to improve organic matter supply to soils, and further, potassium sulfate fertilization for an improved nutrition of fodder legumes. Compost was made from internal resources of the farm (woody material from hedge-cutting). Soil organic matter and nutrient stocks decreased in the control treatment, even though yield levels, and thus nutrient exports, were comparably low. With compost application, soil organic matter and nutrient exports could be compensated for. At the same time, the yields increased but stayed at a moderate level. Potassium sulfate fertilization further improved N yields. We conclude that compost from internal resources is a viable solution to facilitate sustainable organic crop production at low stocking rates. However, we are aware that this option does not solve the basic problem of open nutrient cycles on the farm gate level.

scholarly journals Crop Response to Leaf and Seed Applications of the Biostimulant ComCat® under Stress Conditions

Agronomy ◽  
2021 ◽  
Vol 11 (6) ◽  
pp. 1161
Author(s):  
Roland Gerhards ◽  
Fructueuse N. Ouidoh ◽  
André Adjogboto ◽  
Vodéa Armand Pascal Avohou ◽  
Berteulot Latus Sètondji Dossounon ◽  
...  
Keyword(s):  
Seed Treatment ◽  
Crop Production ◽  
Field Experiments ◽  
Nutrient Deficiency ◽  
Natural Compounds ◽  
Application Rate ◽  
Winter Barley ◽  
Block Designs ◽  
Crop Response ◽  
Yield Data

Although clear evidence for benefits in crop production is partly missing, several natural compounds and microorganisms have been introduced to the market as biostimulants. They are supposed to enhance nutrient efficiency and availability in the rhizosphere, reduce abiotic stress, and improve crop quality parameters. Biostimulants often derive from natural compounds, such as microorganisms, algae, and plant extracts. In this study, the commercial plant extract-based biostimulant ComCat® was tested in two field experiments with maize in the communities of Banikoara and Matéri in Northern Benin and six pot experiments (four with maize and two with winter barley) at the University of Hohenheim in Germany. Maize was grown under nutrient deficiency, drought, and weed competition, and winter barley was stressed by the herbicide Luximo (cinmethylin). ComCat® was applied at half, full, and double the recommended field rate (50, 100, and 200 g ha−1) on the stressed and unstressed control plants as leaf or seed treatment. The experiments were conducted in randomized complete block designs with four replications. The above-ground biomass and yield data of one experiment in Benin were collected. The biostimulant did not promote maize and winter barley biomass production of the unstressed plants. When exposed to stress, ComCat@ resulted only in one out of eight experiments in higher barley biomass compared to the stressed treatment without ComCat® application. There was a reduced phytotoxic effect of cinmethylin after seed treatment with ComCat®. Crop response to ComCat® was independent of the application rate. Basic and applied studies are needed to investigate the response of crops to biostimulants and their mechanisms of action in the plants before they should be used in practical farming.

scholarly journals The interaction of seasonal rainfall and nitrogen fertiliser rate on soil N2O emission, total N loss and crop yield of dryland sorghum and sunflower grown on sub-tropical Vertosols

Soil Research ◽  
2016 ◽  
Vol 54 (5) ◽  
pp. 604 ◽  
Author(s):  
G. D. Schwenke ◽  
B. M. Haigh
Keyword(s):  
Crop Yield ◽  
Crop Production ◽  
Field Experiments ◽  
N2o Emission ◽  
N2o Emissions ◽  
N Loss ◽  
N Losses ◽  
Total N ◽  
Tropical Regions ◽  
The Impact

Summer crop production on slow-draining Vertosols in a sub-tropical climate has the potential for large emissions of soil nitrous oxide (N2O) from denitrification of applied nitrogen (N) fertiliser. While it is well established that applying N fertiliser will increase N2O emissions above background levels, previous research in temperate climates has shown that increasing N fertiliser rates can increase N2O emissions linearly, exponentially or not at all. Little such data exists for summer cropping in sub-tropical regions. In four field experiments at two locations across two summers, we assessed the impact of increasing N fertiliser rate on both soil N2O emissions and crop yield of grain sorghum (Sorghum bicolor L.) or sunflower (Helianthus annuus L.) in Vertosols of sub-tropical Australia. Rates of N fertiliser, applied as urea at sowing, included a nil application, an optimum N rate and a double-optimum rate. Daily N2O fluxes ranged from –3.8 to 2734g N2O-Nha–1day–1 and cumulative N2O emissions ranged from 96 to 6659g N2O-Nha–1 during crop growth. Emissions of N2O increased with increased N fertiliser rates at all experimental sites, but the rate of N loss was five times greater in wetter-than-average seasons than in drier conditions. For two of the four experiments, periods of intense rainfall resulted in N2O emission factors (EF, percent of applied N emitted) in the range of 1.2–3.2%. In contrast, the EFs for the two drier experiments were 0.41–0.56% with no effect of N fertiliser rate. Additional 15N mini-plots aimed to determine whether N fertiliser rate affected total N lost from the soil–plant system between sowing and harvest. Total 15N unaccounted was in the range of 28–45% of applied N and was presumed to be emitted as N2O+N2. At the drier site, the ratio of N2 (estimated by difference)to N2O (measured) lost was a constant 43%, whereas the ratio declined from 29% to 12% with increased N fertiliser rate for the wetter experiment. Choosing an N fertiliser rate aimed at optimum crop production mitigates potentially high environmental (N2O) and agronomic (N2+N2O) gaseous N losses from over-application, particularly in seasons with high intensity rainfall occurring soon after fertiliser application.

Soil organic carbon sequestration potential for Canadian Agricultural Ecoregions calculated using the Introductory Carbon Balance Model

2008 ◽  
Vol 88 (4) ◽  
pp. 451-460 ◽  
Author(s):  
M A Bolinder ◽  
O. Andrén ◽  
T. Kätterer ◽  
L -E Parent
Keyword(s):  
Biological Activity ◽  
Carbon Balance ◽  
Crop Production ◽  
Field Experiments ◽  
Balance Model ◽  
Agricultural Crop ◽  
Organic C ◽  
Soil Biological Activity ◽  
Sequestration Potential

The potential for storage of atmospheric CO2-C as soil organic C (SOC) in agroecosystems depends largely on soil biological activity and the quantity and quality of annual C inputs to soil. In this study we used the Introductory Carbon Balance Model (ICBM) approach driven by daily standard weather station data, specific soil properties and crop characteristics at the scale of Canadian agricultural ecoregions. The objectives were to calculate a climate-dependent soil biological activity parameter representative for annual agricultural crop production systems (re_crop) and to estimate the effect of fallow (re_fallow). These parameters are based on the daily product of soil temperature and stored water that influence biological activity in the arable layer, and are used to adjust the decomposition rates of the ICBM SOC pools. We also tested re_crop and re_fallow on SOC stock change data for different site and treatment combinations from long-term field experiments located in some of the ecoregions. An re_crop value of 0.95 for western ecoregions was on average 0.23 units lower than that of the eastern ecoregions, indicating a lower decomposition rate of SOC. Although the estimated annual C inputs to soil for small-grain cereals were on average ≈7.5% higher in the eastern ecoregions (305 vs. 285 g C m-2 yr-1), the overall results suggest that the western ecoregions would have a greater potential to maintain high SOC levels in the long term. However, these parameters varied between ecoregions and, consequently, the SOC sequestration potential was not always higher for the western ecoregions. The effect of fallow was on average ≈0.04, i.e., SOC decomposed slightly faster under fallow. Predictions for 24 out of 33 site and treatment combinations across Canada were significantly improved (P = 0.003), compared with a previous application with the ICBM that did not differentiate between crops and fallow. The methodology used here enabled us to examine regional differences in the potential for SOC sequestration as a balance between annual C inputs to soil and soil biological activity. Key words: Annual C inputs, climate, fallow, soil biological activity, agroecosystems

scholarly journals Kazakhstan black soil organic substance agrogenic transformation

2016 ◽  
Vol 5 (3) ◽  
pp. 35-39
Author(s):  
Akhylbek Kazhigulovich Kurishbayev ◽  
Grigoriy Aleksandrovich Zvyagin ◽  
Nadezhda Vasilevna Yaroslavtseva ◽  
Boris Maratovich Kogut
Keyword(s):  
Organic Substance ◽  
Wind Erosion ◽  
Field Experiments ◽  
Global Scale ◽  
Black Soil ◽  
Percentage Decrease ◽  
Slowing Down ◽  
Soil Evaluation ◽  
Forest Belts

Currently despite the extended study of the temporary dynamic of the cultivated soil organic substance on the global scale scientists pay much attention to the establishing the patterns of its quantitative transformation on the regional level depending on the systems of agricultural exploitation for the purpose of clarifying the worldwide estimate of humus reserve in relation to the issue of the greenhouse effect. In this regard we have examined the modern dynamic (1990-2015) of the regular and southern black soil organic substance in the conditions of long-term stationary field experiments in the primary grain-sowing region of the Northern Kazakhstan. Based on the data from alternative time periods on the proportion of Соргand N in the upper (mainly 0-25 cm) layer of virgin and agrogenic black soil of Akmolinsk and Kostanay regions of Kazakhstan we have discovered the distinctive characteristics of changes in the content of soil organic substance. It has been demonstrated that the content of humus in the regular black soil is significantly higher than that in the southern carbonated black soil. Evaluation of transforming and inert pool of organic carbon in virgin and agrogenic variants of southern black soil has been made. It has been established that currently in the result of influence from various methods of southern black soil treatment the rate of humus percentage decrease is slowing down in comparison with that of the previous period of its agricultural exploitation, however, in practice, those methods, including the subsurface tilling, do not halt the de-humusization process. Content of humus in soil of the variants with continuous spring wheat is approaching that with continuous complete fallow. There are sufficient grounds to suggest that the reason for de-humusization of the southern black soil could reside in biochemical (mineralization), as well as physical (deflation) loss of humus. Particular danger comes from the wind erosion resulting in percentage of humus dropping even below its minimal value, i.e. due to the decrease of nearly unrecoverable inert part. In agrogenic regular black soil, during the closing period of its agricultural exploitation, there has been no humus loss detected, which is most probably related to the existence of protective anti-erosion forest belts in the studied fields area.

scholarly journals THE EFFECT OF POULTRY MANURE AND LIME AMELIORANT ON ACID-BASIC PROPERTIES OF LEACHED BLACK SOIL (CHERNOZEM) AND THE YIELD OF CROPS

2020 ◽  
pp. 65-72
Author(s):  
Н.П. Чекаев ◽  
Е.Г. Куликова ◽  
А.В. Леснов
Keyword(s):  
Physicochemical Properties ◽  
Dry Matter ◽  
Field Experiments ◽  
Poultry Manure ◽  
Black Soil ◽  
Chicken Manure ◽  
Leached Chernozem ◽  
Positive Effect ◽  
Different Doses ◽  
Experimental Plots

В статье показаны результаты трехлетних полевых опытов по изучению влияния разных доз куриного помета и известкового мелиоранта на физико-химические свойства чернозема выщелоченного и урожайность возделываемых сельскохозяйственных культур на опытных участках. В результате проведенных исследований на опытном поле ФГБОУ ВО Пензенский ГАУ (Пензенская область, Мокшанский район) было выявлено, что при внесении разных доз куриного помета в последействии на второй и третий год наблюдается увеличение кислотности. Использование известкового мелиоранта снижает подкисление и повышает эффективность внесенных доз куриного помета. Применение доз куриного помета от 2 до 10 т/га из расчета на сухое вещество положительно влияли на урожайность зерна как первой культуры после внесения, так второй и третьей. Наибольшую продуктивность исследуемых культур наблюдали на вариантах с внесением от 6 до 10 т/га помета. На фоне известкования эффективность их применения увеличивалась. The article shows the results of three-year field experiments to study the effect of different doses of chicken manure and lime ameliorant on the physicochemical properties of leached chernozem and the yield of cultivated crops in the experimental plots. The studies were carried out on the experimental field of Penza State Agrarian University (Penza Region, Mokshansky District). As a result of, it was revealed that when different doses of chicken manure were applied, an aftereffect increase in acidity was observed in the second and third years. The use of a lime ameliorant reduces acidification and increases the effectiveness of the applied doses of chicken manure. The use of doses of chicken manure from 2 to 10 t/ha (dry matter) had a positive effect on the grain yield of both the first crop after application, and the second and third. The highest productivity of the studied crops was observed in the variants with the introduction of 6 to 10 t/ha of manure. Against the background of liming, the effectiveness of their application increased.

scholarly journals Influence of Rice Husk Biochar and Compost Amendments on Salt Contents and Hydraulic Properties of Soil and Rice Yield in Salt-Affected Fields

Agronomy ◽  
2020 ◽  
Vol 10 (8) ◽  
pp. 1101
Author(s):  
Nguyen Thi Kim Phuong ◽  
Chau Minh Khoi ◽  
Karl Ritz ◽  
Tran Ba Linh ◽  
Dang Duy Minh ◽  
...  
Keyword(s):  
Rice Husk ◽  
Crop Production ◽  
Hydraulic Properties ◽  
Field Experiments ◽  
Plant Biomass ◽  
Total Porosity ◽  
Available P ◽  
Exchangeable Sodium ◽  
Compost Amendments ◽  
Rice Husk Biochar

Soil salinity may damage crop production. Besides proper management of irrigation water, salinity reduction can be achieved through soil amendment. The objectives of this study were to evaluate the effects of rice husk biochar and compost amendments on alleviation of salinity and rice growth. Field experiments were conducted at two salt-affected paddy rice fields located in distinct sites for five continuous crops. Treatments, with four replicates, consisted of continuous three rice crops per year (RRR), two rice crops rotated with fallow in spring–summer crop (FRR), FRR plus compost at 3 Mg ha−1 crop−1 (FRR + Comp), and biochar at 10 Mg ha−1 crop−1 (FRR + BC). Salt contents and hydraulic properties of soils, plant biomass, and plant uptake of cations were investigated. Soil bulk density (BD), exchangeable sodium (Na+), and exchangeable sodium percentage (ESP) were reduced remarkably by biochar application. Biochar application significantly increased other soil properties including total porosity, saturated hydraulic conductivity (Ksat), soluble and exchangeable potassium (K+), K+/Na+ ratio, available P, and total C. Compost application also improved BD, total porosity, and available P, but not exchangeable Na+ and ESP. Total aboveground biomass of rice showed a trend of FRR + BC > FRR + Comp > FRR > RRR. Relatively higher K+ uptake and lower Na+ uptake in rice straw in FRR + BC resulted in a significant two times higher K+/Na+ ratio over other treatments. Our results highlight that biochar amendment is a beneficial option for reducing ESP and providing available K+ and P under salinity-affected P-deficient conditions, hence improving straw biomass.

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