scholarly journals DEVELOPMENT AND RESEARCH OF SOIL MACHINE FOR STRIP-TILL TECHNOLOGY WITH ACTIVE MILLING WORKING BODIES

2019 ◽  
pp. 65-71 ◽  
Author(s):  
Sereda Leonid ◽  
Trukhanska Elena ◽  
Shvets Ludmila
Keyword(s):  
Crop Production ◽  
Low Cost ◽  
Hydraulic Drive ◽  
Environmental Indicators ◽  
Plant Residues ◽  
Special Equipment ◽  
Positive Side ◽  
No Till ◽  
Minimum Number ◽  
Working Bodies

One of the achievements in the field of growing crop products is the development and implementation of the latest low-cost No-till and Strip-till technologies. On the positive side of these technologies, overnight economic efficiency there are other advantages over industrial technology: the conservation and improvement of soil and environmental indicators, such as the prevention of erosion. Against the introduction of these technologies, there are factors of staff unpreparedness, as well as the availability of expensive special equipment. Most scientists in the field of agronomy, especially abroad, when new No-till and Strip-till technologies appeared, called them revolutionary in crop production, since along with economic indicators, these technologies preserve the fertile potential of the soil. This is achieved due to less soil damage due to the minimum number of technological operations, as well as the mandatory coverage of the field with plant residues after harvesting. Strip-till technology is most suitable for our area. The essence of this technology lies in the fact that soil cultivation is carried out selectively, with a strip width of 25-30 cm, and between them there remains untreated strips of 30 cm also, covered with the remains of the crop that was previously harvested. Given the relevance of the topic, this article provides specific material for the study of a tillage machine with active working bodies in the form of mills. The development is based on the well-known agricultural machine, milling cultivator KF-3.6. The essence of the modernization lies in the fact that the milling heads are placed for processing strips, in front of which there are plane-cutting legs, and behind them are special disks for forming the strip. The main disadvantage of the existing machine is the presence of a bulky drive, which consists of three gearboxes, cardan gears. In this paper, we consider the option of replacing the drive with a more modern and reliable hydraulic drive.

scholarly journals CULTIVATOR DEVELOPMENT FOR NEW SOIL PROCESSING TECHNOLOGIES

2020 ◽  
pp. 117-125
Author(s):  
Leonid Sereda ◽  
Ludmila Shvets ◽  
Oleksandr Shvets
Keyword(s):  
United States ◽  
Crop Production ◽  
Low Cost ◽  
The United States ◽  
Soil Tillage ◽  
Plant Residues ◽  
Processing Technologies ◽  
No Till ◽  
The Usa ◽  
Minimum Number

Most scientists in the field of agronomy, especially abroad, with the emergence of the latest technologies No-till and Strip-till, called them revolutionary in crop production, yes, along with economic indicators, these technologies retain the fertile potential of the soil. This is achieved through less soil damage due to the minimum number of technological operations, as well as the obligatory cover of the field with plant residues after harvesting. American scientists have shown that with the correct application of these technologies, the main indicator of soil quality - humus does not decrease, but on the contrary - increases. This article analyzes the work of Strip-till units in Ukraine and proposes a KFG-3,6 soil tillage unit developed by scientists from the Department of Agroengineering and Technical Services. The main means that can prevent the loss of fertility of the earth is the introduction of energy saving and fertile technologies. The factors of soil injury and maximum cover of soil with plant residues were laid. The most well-known technologies are the technologies, quite widespread in the USA and Canada, where more than 50% of the land is cultivated, and also in Argentina where they make more than 50%. In Europe, countries such as Germany, France and the UK will cultivate about 10% of land, and in Ukraine will cultivate consist - only 5%. Strip-till technology came to Europe from the United States, where its No-till technology predecessor. At present, almost half of the largest corn crop in the United States is owned by Strip-till. No-till and Strip-till technologies are widely used in crop production. The main argument is to maintain fertility through compulsory soil cover. The Department of Agroengineering and Technical Service of the Vinnytsia NAU has for many years taught a course of lectures for masters on low-cost and environmentally promising technologies in crop production. Manufacturers of Kalina-Agromash agricultural machinery in Vinnytsia region are interested in developing a modernized KFG-3,6 cultivator for Strip-till technology, which is partially covered in this article.

scholarly journals Technique-technological prerequisites for improving soil fertility

2020 ◽  
pp. 33-40
Author(s):  
L. K. Litvinyuk ◽  
O. F. Govorov ◽  
V. V. Adamchuk ◽  
V. M. Kornyushin ◽  
A. D. Chaychuk ◽  
...  
Keyword(s):  
Soil Fertility ◽  
Crop Production ◽  
Soil Layer ◽  
Plant Residues ◽  
Technological Support ◽  
Functional Scheme ◽  
Time Gap ◽  
Printed Materials ◽  
Working Bodies ◽  
By Products

Annotation Purpose. Improving soil fertility due to new technical and technological support for rational methods of processing and using by-products of crop production as fertilizer. Methods. Generalization of the monographic results of experimental research of combined machines and other printed materials. Results. The reasons for the decrease in soil fertility are given; the technological operation for increasing soil fertility, which consists of grinding plant residues, introducing a destructor and mixing them in a soil layer at a depth of 10–12 cm when processing the soil to 16 cm, is justified, a combined unit for its implementation has been developed. Conclusions. The structural and functional scheme of the combined unit for increasing soil fertility, consisting of an energy source, on the front hitch of which a crop shredder with a horizontal axis of rotation and hammer working bodies for grinding plant residues is hung, on the rear hitch a combined machine with active scapular and passive working bodies is justified for processing the soil to a depth of 16 cm, and a tank for the destructor is installed on the frame, which ensures its introduction and mixing with the soil to a depth of 10–12 cm without a time gap, which increases the efficiency of the destructor's action on improving soil fertility. Keywords: soil fertility, plant residues, shredder, destructor, active-passive working bodies.

DEVELOPMENT OF PRINCIPLES FOR THE DESIGN OF COMPLEX TECHNICAL MEANS AND TECHNOLOGICAL PROCESSES OF CROP PRODUCTION

1970 ◽  
pp. 70-72
Author(s):  
D. N. Radnaev ◽  
Yu. А. Sergeev ◽  
А. А. Abiduev ◽  
S. V. Petunov
Keyword(s):  
Crop Production ◽  
Design Methodology ◽  
Systematic Approach ◽  
Optimal Solution ◽  
Agricultural Science ◽  
Complex Objects ◽  
Technological Processes ◽  
Methods Of Synthesis ◽  
Working Bodies ◽  
Projected Process

Currently, agricultural science and practice has a large amount of experimental data that need to be taken into account in the development of new technological processes and working bodies. Therefore, there is a need to design technical processes in order to identify their effectiveness. In this regard, the use of methods of synthesis of technological processes based on the characteristics of tillage, seeding and production system of the economy, in which it is necessary to implement the projected process. In the General statement of the problem, the design of technological processes is one of the complex problems with the following characteristic feature: lack of knowledge about the methods of designing technological processes, suitable for system - structural modeling and algorithmization of design processes. To overcome this incompleteness, a systematic approach is needed. The system approach proceeds from the fact that the specificity of complex objects and processes is not limited to the features of its constituent parts and elements, but lies in the nature of relationships and relationships between them. In this paper, the design methodology is based on the formulated fundamental assumptions and principles of the whole system of more specific statements, revealing the structure and content of design operations, the synthesis of the choice of solutions. The principles of technological compatibility and emergence suitable for system-structural analysis of complex technical means and technological processes, consisting of statements having a hierarchical structure, where the degree of detail of the goals from level to level increases, and the approval of the last level determines the direction of the search for the optimal solution to the problem.

scholarly journals Agro-economic and socio-environmental assessments of food and virtual water trades of Iran

2021 ◽  
Vol 11 (1) ◽  
Author(s):  
Fatemeh Karandish ◽  
Hamideh Nouri ◽  
Marcela Brugnach
Keyword(s):  
Food Security ◽  
Water Consumption ◽  
Crop Production ◽  
Water Footprint ◽  
Virtual Water ◽  
Environmental Indicators ◽  
Blue Water ◽  
Water Crisis ◽  
Food Trade ◽  
Water Limitations

AbstractEnding hunger and ensuring food security are among targets of 2030’s SDGs. While food trade and the embedded (virtual) water (VW) may improve food availability and accessibility for more people all year round, the sustainability and efficiency of food and VW trade needs to be revisited. In this research, we assess the sustainability and efficiency of food and VW trades under two food security scenarios for Iran, a country suffering from an escalating water crisis. These scenarios are (1) Individual Crop Food Security (ICFS), which restricts calorie fulfillment from individual crops and (2) Crop Category Food Security (CCFS), which promotes “eating local” by suggesting food substitution within the crop category. To this end, we simulate the water footprint and VW trades of 27 major crops, within 8 crop categories, in 30 provinces of Iran (2005–2015). We investigate the impacts of these two scenarios on (a) provincial food security (FSp) and exports; (b) sustainable and efficient blue water consumption, and (c) blue VW export. We then test the correlation between agro-economic and socio-environmental indicators and provincial food security. Our results show that most provinces were threatened by unsustainable and inefficient blue water consumption for crop production, particularly in the summertime. This water mismanagement results in 14.41 and 8.45 billion m3 y−1 unsustainable and inefficient blue VW exports under ICFS. “Eating local” improves the FSp value by up to 210% which lessens the unsustainable and inefficient blue VW export from hotspots. As illustrated in the graphical abstract, the FSp value strongly correlates with different agro-economic and socio-environmental indicators, but in different ways. Our findings promote “eating local” besides improving agro-economic and socio-environmental conditions to take transformative steps toward eradicating food insecurity not only in Iran but also in other countries facing water limitations.

scholarly journals Life Cycle Energy Consumption and Carbon Dioxide Emissions of Agricultural Residue Feedstock for Bioenergy

2021 ◽  
Vol 11 (5) ◽  
pp. 2009
Author(s):  
Valerii Havrysh ◽  
Antonina Kalinichenko ◽  
Anna Brzozowska ◽  
Jan Stebila
Keyword(s):  
Carbon Dioxide ◽  
Power Generation ◽  
Life Cycle ◽  
Carbon Dioxide Emissions ◽  
Crop Production ◽  
Agricultural Residues ◽  
Environmental Indicators ◽  
Low Carbon ◽  
Low Carbon Economy ◽  
Energy Inputs

The depletion of fossil fuels and climate change concerns are drivers for the development and expansion of bioenergy. Promoting biomass is vital to move civilization toward a low-carbon economy. To meet European Union targets, it is required to increase the use of agricultural residues (including straw) for power generation. Using agricultural residues without accounting for their energy consumed and carbon dioxide emissions distorts the energy and environmental balance, and their analysis is the purpose of this study. In this paper, a life cycle analysis method is applied. The allocation of carbon dioxide emissions and energy inputs in the crop production by allocating between a product (grain) and a byproduct (straw) is modeled. Selected crop yield and the residue-to-crop ratio impact on the above indicators are investigated. We reveal that straw formation can consume between 30% and 70% of the total energy inputs and, therefore, emits relative carbon dioxide emissions. For cereal crops, this energy can be up to 40% of the lower heating value of straw. Energy and environmental indicators of a straw return-to-field technology and straw power generation systems are examined.

UV-Visible Spectrophotometric Determination of Lambda-Cyhalothrin Insecticide in Vegetables, Soil and Water Samples

2019 ◽  
Vol 31 (1) ◽  
pp. 1-9
Author(s):  
Deepak Kumar Sahu ◽  
Joyce Rai ◽  
Chhaya Bhatt ◽  
Manish K. Rai ◽  
Jyoti Goswami ◽  
...  
Keyword(s):  
Crop Production ◽  
Limit Of Detection ◽  
Low Cost ◽  
Molar Absorptivity ◽  
Agricultural Field ◽  
Limit Of Quantification ◽  
Yellow Colour ◽  
Modern Age ◽  
Lambda Cyhalothrin

In modern age pesticide is used widely in agriculture. Lambda-cyhalothrin (LCT) is one of the most used pesticides which are used as a insecticide to kill pest, tricks, flies etc in agricultural field and it is also used for crop production. We have developed new method to detect LCT insecticide in agriculture field and reduce its uses. In this method we found the maximum absorbance at 460 nm for yellow colour dye. We also calculated limit of detection and limit of quantification 0.001 mg kg-1 and 0.056 mg kg-1 respectively. Molar absorptivity and Sandell’s sensitivity was also calculated and obtained 1.782 ×107 mol-1 cm-1 and 9.996 ×10-6 µg cm-2 respectively. The obtained yellow colour dye obeyed Beer’s law limit range of 0.5 µg ml -1 to 16 µg ml-1 in 25 ml. This method is less time consuming, selective, simple, sensitive and low cost. Present method is successfully applied in various soil, water and vegetable samples.

Simplified rat intubation using a new oropharyngeal intubation wedge

2000 ◽  
Vol 89 (5) ◽  
pp. 1766-1770 ◽  
Author(s):  
I-Ming Jou ◽  
Ya-Ting Tsai ◽  
Ching-Lin Tsai ◽  
Ming-Ho Wu ◽  
Han-Yu Chang ◽  
...  
Keyword(s):  
Low Cost ◽  
Vital Signs ◽  
Upper Airway ◽  
Postmortem Examination ◽  
Normal Range ◽  
Special Equipment ◽  
Vocal Cords ◽  
Oropharyngeal Cavity ◽  
Series Of Experiments ◽  
Proper Setting

Our new oropharyngeal intubation wedge made from a plastic 3-ml syringe has been used successfully for the expansion of the oropharyngeal cavity and visualization of vocal cords for endotracheal intubation in the rat. All the animals we used tolerated the intubation and ventilation procedures in a series of experiments. After the proper setting of the respirator, vital signs were maintained within normal range. The postmortem examination and measurements in the upper airway confirmed that the endotracheal tube was properly sited and also demonstrated the precise size of the device that should be used. The main advantages of this method include low cost, simplicity, and reliability. Furthermore, because no expensive, elaborate, difficult-to-operate, or hard-to-get special equipment is needed, this technique can be used in every laboratory.

scholarly journals Estimating tree stem diameters and volume from smartphone photogrammetric point clouds

2019 ◽  
Vol 93 (3) ◽  
pp. 411-429 ◽  
Author(s):  
Maria Immacolata Marzulli ◽  
Pasi Raumonen ◽  
Roberto Greco ◽  
Manuela Persia ◽  
Patrizia Tartarino
Keyword(s):  
Low Cost ◽  
Three Dimensional ◽  
Laser Scanner ◽  
Point Clouds ◽  
Stem Volume ◽  
Forest Plot ◽  
3D Point Clouds ◽  
Dense Point ◽  
Minimum Number ◽  
Scale Point

Abstract Methods for the three-dimensional (3D) reconstruction of forest trees have been suggested for data from active and passive sensors. Laser scanner technologies have become popular in the last few years, despite their high costs. Since the improvements in photogrammetric algorithms (e.g. structure from motion—SfM), photographs have become a new low-cost source of 3D point clouds. In this study, we use images captured by a smartphone camera to calculate dense point clouds of a forest plot using SfM. Eighteen point clouds were produced by changing the densification parameters (Image scale, Point density, Minimum number of matches) in order to investigate their influence on the quality of the point clouds produced. In order to estimate diameter at breast height (d.b.h.) and stem volumes, we developed an automatic method that extracts the stems from the point cloud and then models them with cylinders. The results show that Image scale is the most influential parameter in terms of identifying and extracting trees from the point clouds. The best performance with cylinder modelling from point clouds compared to field data had an RMSE of 1.9 cm and 0.094 m3, for d.b.h. and volume, respectively. Thus, for forest management and planning purposes, it is possible to use our photogrammetric and modelling methods to measure d.b.h., stem volume and possibly other forest inventory metrics, rapidly and without felling trees. The proposed methodology significantly reduces working time in the field, using ‘non-professional’ instruments and automating estimates of dendrometric parameters.

scholarly journals A haemagglutination test for rapid detection of antibodies to SARS-CoV-2

2020 ◽  
Author(s):  
Alain Townsend ◽  
Pramila Rijal ◽  
Julie Xiao ◽  
Tiong Kit Tan ◽  
Kuan-Ying A Huang ◽  
...  
Keyword(s):  
High Performance ◽  
Point Of Care ◽  
Low Cost ◽  
Glycophorin A ◽  
Red Cell ◽  
Special Equipment ◽  
Cell Agglutination ◽  
Haemagglutination Test ◽  
Point Of Care Test ◽  
Laboratory Facilities

ABSTRACTSerological detection of antibodies to SARS-CoV-2 is essential for establishing rates of seroconversion in populations, detection of seroconversion after vaccination, and for seeking evidence for a level of antibody that may be protective against COVID-19 disease. Several high-performance commercial tests have been described, but these require centralised laboratory facilities that are comparatively expensive, and therefore not available universally. Red cell agglutination tests have a long history in blood typing, and general serology through linkage of reporter molecules to the red cell surface. They do not require special equipment, are read by eye, have short development times, low cost and can be applied as a Point of Care Test (POCT). We describe a red cell agglutination test for the detection of antibodies to the SARS-CoV-2 receptor binding domain (RBD). We show that the Haemagglutination Test (“HAT”) has a sensitivity of 90% and specificity of 99% for detection of antibodies after a PCR diagnosed infection. The HAT can be titrated, detects rising titres in the first five days of hospital admission, correlates well with a commercial test that detects antibodies to the RBD, and can be applied as a point of care test. The developing reagent is composed of a previously described nanobody to a conserved glycophorin A epitope on red cells, linked to the RBD from SARS-CoV-2. It can be lyophilised for ease of shipping. We have scaled up production of this reagent to one gram, which is sufficient for ten million tests, at a cost of ∼0.27 UK pence per test well. Aliquots of this reagent are ready to be supplied to qualified groups anywhere in the world that need to detect antibodies to SARS-CoV-2, but do not have the facilities for high throughput commercial tests.

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