scholarly journals THE EFFICIENCY OF BIOLOGICAL PREPARATIONS APPLICATION AT BARLEY PRODUCTION IN RIGHTBANK SARATOV REGION

2007 ◽  
Vol 5 ◽  
pp. 121-128
Author(s):  
E.A. Narusheva ◽  
E.S. Yurchenko ◽  
V.V. Nikiforov
Keyword(s):  
Field Experiments ◽  
Black Soil ◽  
Saratov Region ◽  
Combined Application ◽  
Positive Effect

The positive effect of biological preparations Mizorin and BisolbiSunTM on barley productivity was established in field experiments on black soil of Right-Bank Saratov. The best conditions of biological preparations use were created at their combined application with nitrogen-phosphoric fertilizers N45P45.

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.

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 Effect of Fertilization with Urea and Inhibitors on Growth, Yield and CBD Concentration of Hemp (Cannabis sativa L.)

2021 ◽  
Vol 13 (4) ◽  
pp. 2157
Author(s):  
Ioanna Kakabouki ◽  
Angeliki Kousta ◽  
Antigolena Folina ◽  
Stella Karydogianni ◽  
Charikleia Zisi ◽  
...  
Keyword(s):  
Plant Height ◽  
Field Experiments ◽  
Cannabis Sativa ◽  
Nitrification Inhibitor ◽  
Growth Yield ◽  
Urease Inhibitor ◽  
Significance Level ◽  
Yield And Quality ◽  
Positive Effect ◽  
Urea Fertilization

Field experiments were conducted during 2019 in two different locations in Greece (Athens and Farsala) to evaluate the effect of urea and urea fertilization with inhibitors on the agronomic yield and quality characteristics of two cannabis varieties (Cannabis sativa L.), “Uso31”and “Fedora 17”. The experimental design was split-plot with four different fertilization treatments—control, Urea (U), urea with Urease Inhibitor (UI), and urea with Nitrification Inhibitor (NI) and urease inhibitor (UI). The significance of differences between treatments was estimated by using Tukey’s test with a significance level of p = 0.05. The plant height was significantly affected by the different fertilizations and different varieties as well as by the two locations. The maximum plant height was 197 cm for “Fedora 17”in Farsala. The seed yield was higher forthe urea with inhibitors treatment in both varieties. The Cannabidiol (CBD) content was significantly affected by the fertilization—it was higher in urea with inhibitors in “Uso31”and “Fedora 17” treatments. The lowest CBD content value was 1.29% (control) and the highest was 1.69% (urea NI + UI). In conclusion, in both varieties, it seems that urea with inhibitors has a positive effect on their growth, as well as on the increase in cannabidiol (CBD) content.

scholarly journals Heterogeneous Preferences for Oysters: Evidence from Field Experiments

2017 ◽  
Vol 46 (2) ◽  
pp. 296-314 ◽  
Author(s):  
Tongzhe Li ◽  
Maik Kecinski ◽  
Kent D. Messer
Keyword(s):  
Logit Model ◽  
Field Experiments ◽  
Consumer Preferences ◽  
Revealed Preference ◽  
Older Individuals ◽  
Heterogeneous Preferences ◽  
Adult Participants ◽  
Negative Effect ◽  
Choice Tasks ◽  
Positive Effect

This study uses field experiments to investigate consumer preferences for oysters. In total, 486 adult participants completed a series of revealed-preference dichotomous-choice tasks and a demographic survey. Using a random effects logit model, we investigate factors that influence participants’ decisions to purchase oysters. As expected, price had a significant negative effect, while income had a positive effect. Older individuals and those who were relatively selective regarding shell color or smell are less likely to buy oysters, but consumers who valued size, oyster species, and harvest location were willing to pay more.

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 Agroecological aspects of application of Pseudomonas sp. DA1.2 in overcoming herbicidal stress in wheat

2020 ◽  
Vol 23 ◽  
pp. 03009
Author(s):  
Maxim. D. Timergalin ◽  
Arina V. Feoktistova ◽  
Timur V. Rameev ◽  
Gaisar G. Khudaygulov ◽  
Sergei N. Starikov ◽  
...  
Keyword(s):  
Bacterial Strain ◽  
Field Experiments ◽  
Steppe Zone ◽  
Pseudomonas Sp ◽  
Synthetic Auxins ◽  
Promising Agent ◽  
Relative Water ◽  
Stress Application ◽  
Positive Effect

This article submits results of laboratory and field experiments on the effect of an auxin-producing bacterial strain Pseudomonas sp. DA1.2 in comparison with Pseudomonas koreensis IB-4 on wheat plants in conjunction with the “Chistalan” herbicide treatment. Our work shows the positive effect of bacterial treatments on plant growth, the relative water content in leaves and the role of bacteria in the redistribution of ABA and IAA in wheat shoots under conditions of herbicidal stress. Application of Pseudomonas sp. DA1.2 together with the herbicide in the field of the steppe zone led to an increase in yield by 20% relative to the control variant. This bacterial strain helps to overcome herbicidal stress and is a promising agent for improving the technology of using synthetic auxins herbicides.

Efficiency of organic and mineral fertilizers under sugar beet and watermelon

2021 ◽  
Vol 03 (01) ◽  
pp. 40-46
Author(s):  
Hasil Cəmil oğlu Bağırov ◽  
◽  
Vüqar İmanəli oğlu Cəfərov ◽  
Arzu Vidadi qızı Həşimova ◽  
Rəşidə Elşən qızı Şükürova ◽  
...  
Keyword(s):  
Sugar Beet ◽  
Quality Indicators ◽  
Point Of View ◽  
Agricultural Products ◽  
Mineral Fertilizers ◽  
Combined Application ◽  
Factors Influencing ◽  
Organic And Mineral Fertilizers ◽  
Positive Effect

Without knowing the main quality indicators of agricultural products, it is impossible to draw conclusions about the effectiveness of this or that agro-technical measure. One of the factors influencing the quality of sugar beet and watermelon is the effective application of fertilizers. Fertilizers increase the quality indicators of the product along with its expansion. From this point of view, the effect of organic and mineral fertilizers on the quality indicators of sugar beet and watermelon product in the meadow-gray soils of Mugan-Salyan region was studied. The combined application of organic and mineral fertilizers had a positive effect on the quality indicators of sugar beet and watermelon. Key words: organic and mineral fertilizers, sugar beet, watermelon, phosphorus, potassium, productivity, soil, quality

scholarly journals Effective concrete types with carbon fiber

2018 ◽  
Vol 193 ◽  
pp. 03049
Author(s):  
Vadim Solov'ev ◽  
Marsel’ Nurtdinov ◽  
Il’ya Kukhar
Keyword(s):  
Carbon Fiber ◽  
Fiber Material ◽  
Composite Fiber ◽  
Chemical Processes ◽  
Water Soluble ◽  
Fiber Reinforced Concrete ◽  
Optimal Method ◽  
Combined Application ◽  
Composite Fiber Material ◽  
Positive Effect

The research was conducted in order to determine the effect of the polymer additive on the adhesion between the fiber and the cement-sand matrix, since the involvement stage of the composite fiber material directly depends on the adhesion value between these dissimilar components. Throughout the study, the issue at stake was to determine the optimal method for adhesion increasing to assess its effectiveness, and also to carry out an experiment and obtain actual numerical change values of the adhesion to carbon fiber (the assessment was made considering changes of the strength parameters). According to the results of conducted testings, the tensile strength during the bend almost wasn’t affected in resin-injected samples with the amount of fiber of 1 and 3% (increments of 12.7 and 15.7%, respectively). Despite this, the combined application of a resin with the same amount of fiber gave the increments of 34 and 20%, respectively. Conclusions are drawn about the prospects of polymer additives usage in carbon fiber reinforced concrete. The mechanism of increasing the carbon fiber involvement in the composite behavior is considered, the positive effect is confirmed by the study of the chemical processes that arise during the interaction of fiber and water-soluble resin.

scholarly journals Effect of zeolites on soil modification and productivity

2020 ◽  
Vol 17 ◽  
pp. 00117
Author(s):  
Liliya M.-H. Bikkinina ◽  
Vladimir O. Ezhkov ◽  
Ramil N. Faizrakhmanov ◽  
Rasim R. Gazizov ◽  
Asiya M. Ezhkova
Keyword(s):  
Microbial Biomass ◽  
Forest Soil ◽  
Field Experiments ◽  
Black Soil ◽  
Ammonia Nitrogen ◽  
Mobile Phosphorus ◽  
Grey Forest Soil ◽  
Yield Gain ◽  
Use Efficiency ◽  
The Republic

Local natural zeolite-containing rocks use efficiency in agriculture of the Republic of Tatarstan was studied in the research. The research was conducted in the field on leached black soil applying mechanoactivated zeolites and in greenhouses on grey forest soil using nanostructured zeolite. Field experiments identified the soil deacidification of 0.4 pHsol, increase of assimilable phosphates of the 1st and 2nd groups (Ca-P1 и Ca-P2) – of 5.0 and 6.6 mg per 100 g of soil. Moreover, the research considered the increasing the mobile phosphorus available to plants – of 8.0 and 10.0 mg/kg and exchange potassium of 5.0 and 6.6 mg/kg according to the doses of zeolite of 10 and 15 t/ha. Improving the activity of microflora in rhizosphere and growth acceleration of microbial biomass to 15.5 mg per 100 g*h were observed. The average annual grain yield gain was 0.3 and 0.5 t/ha, and the payback of 1 ton of zeolite by additional harvest 0.11 and 0.09 t/ha in grain units respectively. Improvement in the reaction of the soil environment was stated in the vegetative conditions on gray forest soil using nanostructured zeolite in doses of 0.1 and 1.0 t/ha, a positive shift in pHsol, was 0.97 and 0.9 units respectively. Under the influence of mechanically activated celite at a dose of 15 t/ha, soil acidity decreased by 0.99 pHsol units. The use of nanostructured zeolite contributed to an increase of the reserves of ammonia nitrogen in the soil – by 0.8 and 2.4 mg/kg, mobile phosphorus – by 6.0 and 33.0 mg/kg, and exchangeable potassium – by 3.0 and 5.5 mg/kg respectively at doses of 0.1 and 1.0 t/ha respectively. The growth of microbial biomass was up to 24.0 mg/100 g*h. Additional grain gains were obtained: under the influence of mechanically activated zeolite at a dose of 15 t/ha – 8.6 g/vessel and nanostructured analog at a dose of 0.1 t/ha – 7.3 g/vessel, which were comparable at the consumption of the latter 150 times less.

Management of emerged weeds in irrigated blackgram (Vigna mungo L.) through post-emergence herbicides

2015 ◽  
Author(s):  
T. Ramesh ◽  
S. Rathika
Keyword(s):  
Field Experiments ◽  
Dry Weight ◽  
Cost Ratio ◽  
Treatment Schedule ◽  
Benefit Cost Ratio ◽  
Net Returns ◽  
Combined Application ◽  
Hand Weeding ◽  
Benefit Cost ◽  
Quizalofop Ethyl

Field experiments were conducted during summer (April to June), 2010 and 2011 to study the effect of post-emergence herbicides in irrigated blackgram (ADT 5). Treatments comprising of three levels (50, 75 and 100 g /ha) of the post- emergence herbicides viz., Imazethapyr 10% SL and Quizalofop ethyl 5% EC were tested alone and in combination and compared with hand weeding twice on 15 and 30 DAS(farmers’ practice). Herbicides were sprayed on 15 DAS when the weeds were 2-4 leaves stage using flat-fan nozzle as per treatment schedule. The results revealed that minimum total weed density (8.44) and weed dry weight ( 27.2 g/m2) and higher weed control efficiency (84.4%) were obtained under combined application of imazethapyr and quizalofop ethyl as tank mix at 100 g /ha. However, this was comparable with application of both the herbicides at 75g /ha. Application of imazethapyr + quizalofop ethyl each at 75 g/ha registered significantly taller plants, higher dry matter production, more number of pods per plant, seeds per pod and higher grain yield (826 kg/ha), net returns (Rs.26621/ha) and benefit cost ratio (2.76). Thus, application of post- emergence herbicides imazethapyr + quizalofop ethyl each at 75 g /ha as tank mix on 15 DAS could be recommended for controlling of emerged weeds in irrigated blackgram.

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