EVALUATION OF THE EFFECTIVENESS OF THE MALTESE MECHANISM IN THE DRIVE OF A ROTARY TILLER

2021 ◽  
pp. 41-45
Author(s):  
MIKHAIL I. BELOV ◽  
◽  
OLEG M. MELNIKOV
Keyword(s):  
Rational Number ◽  
Soil Tillage ◽  
Maltese Cross ◽  
Dry Areas ◽  
Continuous Rotation

The study focuses on a model of the KFG-3.6 rotary tiller with the Maltese-cross mechanism in the horizontalaxis rotary tiller drive. The continuous-rotation Maltese mechanism of external hooking allows reducing the knife speed when the knife penetrates into the soil. This kind of tillage minimizes erosion of the soil in dry areas. The study purpose is to determine the rational number of fi ngers, cross-wheel slots and knives on one side of the fl ange, providing a predetermined quality of soil tillage. It has been established that the Maltese-cross mechanism including a three-fi nger carrier gear and a cross with six slots is preferable among all the existing options.

Influence of soil bio stimulators on the change in the quality of a soil tillage machine operation

2020 ◽  
Vol 24 (1) ◽  
pp. 22-26
Author(s):  
P. Findura ◽  
◽  
M. Prístavka ◽  
V. Hrdá ◽  
A. Szparaga ◽  
...  
Keyword(s):  
Soil Tillage ◽  
Machine Operation

scholarly journals Technical, Economical and Ecological Estimation of Up-To-Date Combined Soil Tillage, Fertilising and Sowing Machines

2006 ◽  
Vol 1 ◽  
pp. 212
Author(s):  
U. Pinnis ◽  
Ā. Ruciņš ◽  
A. Vilde ◽  
S. Cēsnieks
Keyword(s):  
Comparative Studies ◽  
Soil Tillage ◽  
Quality Of Work ◽  
Mineral Fertiliser ◽  
Field Crops ◽  
Weather Risk ◽  
Limited Application ◽  
Fertiliser Application ◽  
The Baltic

Comparative studies have been carried out to estimate the possibilities, purposefulness and efficiency of combine soil tollage, fertilising and sowing machines and units for field crops used on peasant farms under the Baltic conditions. It is found out that most widely used machines and units are aggregates combining pre-sowing tillage of soil (combined cultivators, or revolving power harrow), mineral fertiliser application (pneumatic distributors) and grain sowing (pneumatic, or mechanical sowing machines). As to the agrotechnical terms, the ploughing-sowing aggregates may have limited application. The most suitable are tractor-mounted machines. For combined aggregates preference should be given to more powerful tractors having frontally mounted equipment as well. In contrast to single-operational machines, the use of combined aggregates removes the weather risk, improves the quality of work, raises their efficiency, reduces the consumption of energy and fuel (accordingly, the amount of harmful exhaust gases) and cuts the total costs by 10-18 %. For agrotechnical, energetic, economical and ecological considerations the up-to-date combined aggregates of soil tillage; fertiliser application and sowing are efficient and should be widely introduced on the farms of Latvia.

scholarly journals Influence of basic soil tillage methods on fresh yield and quality of winter rape cultivars

2020 ◽  
Vol 15 (4) ◽  
pp. 335-342
Author(s):  
Anvar Sh. Gadzhikurbanov
Keyword(s):  
Crop Yields ◽  
Maximum Yield ◽  
Soil Tillage ◽  
Flowering Stage ◽  
Winter Rape ◽  
Yield And Quality ◽  
Significant Difference ◽  
Weed Infestation ◽  
The Republic

The development of rational system of basic soil tillage results in formation of sufficiently high crop yields. A two-factor field experiment was carried out to address these issues when cultivating winter rape cultivars on light chestnut soils of the Primorsko-Caspian sub-province of the Republic of Dagestan. VEM (standard), Elvis and Meteor winter rape cultivars were studied in the experiment. The following methods of soil tillage were studied: real tillage (control), subsoil tillage. The research revealed that there was no significant difference in agrophysical indicators between the soil cultivation variants. Data on weed infestation of winter rape fields showed that the number of weeds and their weight increased significantly after subsoil tillage. At the budding stage, the number of weeds increased 2.1-fold compared to the control (real tillage), and the weight of weeds increased 1.88-fold. During flowering stage, these indicators were 2.2 times higher. The maximum yield in all variants of the experiment was formed by Elvis cultivar - 44.9 and 41.4 t/ha, respectively, which is more than VEM (standard) and Meteor cultivars by 20.4 t/ha (7.9 %) and 20.0 t/ha (8.7 %), respectively. The yield of Meteor cultivar in these variants was also high and amounted to 41.6 and 38.1 t/ha, respectively, which was higher by 11.5 and 10.4 % compared with the standard. The greatest increase in the fresh yield was provided by real tillage. On average, the yield increased by 8.7 % for varieties in comparison with subsoil cultivation. Elvis cultivar formed the best quality indicators, followed by Meteor cultivar.

scholarly journals Mapping of sites in forest stands

2014 ◽  
Vol 86 (4) ◽  
pp. 2025-2038
Author(s):  
SYLVIO PÉLLICO NETTO ◽  
FLAVIO R. STEFANELLO ◽  
ALLAN L. PELISSARI ◽  
HASSAN C. DAVID
Keyword(s):  
Sampling Method ◽  
Total Population ◽  
Pinus Elliottii ◽  
Minimum Variance ◽  
Fixed Number ◽  
Systematic Sampling ◽  
Volumetric Expansion ◽  
Maltese Cross ◽  
One Year

Generally, the forest companies use the total one year planting area as a minimum stratum of the total population and, consequently, the forest inventory processing has been conducted by applying the stratified random sampling to it. This study was carried out in the National Forest of Tres Barras, Brazil, and it aimed to classify and map the sites of Pinus elliottii stands. A systematic sampling was structured into clusters and applied independently by compartments. The clusters, in maltese cross, were composed of four sampling subunits, using Prodan sampling method with a fixed number of six trees. By analysis of the methodology it was possible to confirm the hypothesis: a) the selective thinning cause expressive increase of volumetric variability within compartments; b) the variation of sites within the compartments causes volumetric expansion of variance and this grows proportionally to the quality of the sites; c) the stratification in sites results in minimum variance within them; d) the stratification in sites resulted in until to 91% reduction of variances within them.

scholarly journals Technology and tools for strip tillage in the energy-saving system of agriculture in Volgograd region

2021 ◽  
Vol 843 (1) ◽  
pp. 012020
Author(s):  
I B Borisenko ◽  
M V Meznikova
Keyword(s):  
Energy Saving ◽  
Soil Tillage ◽  
Technical Solution ◽  
Resource Saving ◽  
Adjustment Mechanism ◽  
Fine Soil ◽  
Volgograd Region ◽  
Zone Parameters ◽  
Strip Tillage

Abstract The article highlights the results of research in strip farming. The method of minimum soil tillage, a resource-saving working body ROPA and a soil tillage tool for strip ripping OMPO-5.6, which are designed to perform fine soil tillage with strip deepening, are proposed. Adjustment of loosening depth from bit is achieved within the range of 0.25-0.4 m and is selected taking into account the crop grown in the farm. Availability of undercutter tine allows to regulate parameters of continuous ripping zone. Parameters of treated and untreated strips are regulated by location of undercutter paw. The design of the tool provides a smooth adjustment mechanism by which the width of the cultivated strip can be changed within 0.25-0.35 m. This makes it possible to use the implement for different tilled crops. The technological process carried out by this working body helps to reduce the wounding effect on the soil through a simple technical solution. Installation of side undercutting discs allows cultivating the soil within a given strip, and the process of cutting the soil in a blocked environment improves the quality of treatment.

scholarly journals Collection of continuous rotation MicroED Data from Ion Beam Milled Crystals of Any Size

2018 ◽  
Author(s):  
Michael W. Martynowycz ◽  
Wei Zhao ◽  
Johan Hattne ◽  
Grant J. Jensen ◽  
Tamir Gonen
Keyword(s):  
Data Collection ◽  
Sample Preparation ◽  
Focused Ion Beam ◽  
Ion Beam ◽  
Air Interface ◽  
Structure Solution ◽  
Continuous Rotation ◽  
Macromolecular Protein ◽  
Subsequent Sample

AbstractMicrocrystal electron diffraction (MicroED) allows for macromolecular structure solution from nanocrystals. To create crystals of suitable size for MicroED data collection, sample preparation typically involves sonication or pipetting a slurry of crystals from a crystallization drop. The resultant crystal fragments are fragile and the quality of the data that can be obtained from them is sensitive to subsequent sample preparation for cryoEM as interactions in the water-air interface can damage crystals during blotting. Here, we demonstrate the use of a focused ion beam to generate lamellae of macromolecular protein crystals for continuous rotation MicroED that are of ideal thickness, easy to locate, and require no blotting optimization. In this manner, crystals of nearly any size may be scooped and milled to ideal dimensions prior to data collection, thus streamlining the methodology for sample preparation for MicroED.

scholarly journals Quality of sunflower oil seeds in the Middle Volga region

2019 ◽  
pp. 4-7
Author(s):  
Oleg Ivanovich Goryanin ◽  
Baurzhan Zhunuzovich Dzhangabaev ◽  
Elena Vladimirovna Shcherbinina ◽  
Ivan Filippovich Medvedev
Keyword(s):  
Oil Content ◽  
Maximum Level ◽  
Climatic Conditions ◽  
Soil Tillage ◽  
Ordinary Chernozem ◽  
Mineral Fertilizers ◽  
Natural Fertility ◽  
Middle Volga Region ◽  
Oil Seeds

The results of studies on the study of six variants of sunflower cultivated by production system ExpressSun (predecessor barley), on ordinary Chernozem during 2013-2018 are presented. Research on hybrid P63LE10 showed the promise of deep loosening of the soil as the main soil tillage. It ensures, the yield of 2.2-2.5 t/ha of oilseeds after the application of fertilizers. It is established that one of the main quality indicators of oilseeds – oil content – depends on the mass of 1000 seeds, while the highest value detected on the maximum level of intensity of 51.3-51.5 g, that is  1.6-2.6 g (3,2-5,3 %) more than the rest of the studied variants. The maximum oil content is on natural fertility background – 47.8-49.2 %, which was 1.3 and 1.9 % more than in the fertilized variants. In the study of the nature of oilseeds they are revealed trends of dependence on the used means of intensification similar to the oil content of seed at a positive relationship with the crop yield (r= 0.71-0.92*). Application of mineral fertilizers in a dose NPK30 provides stabilization of productivity and quality of oil seeds in any climatic conditions year. On the basis of the obtained data they are  revealed manufacturing operations that provide high productivity and quality of seeds: the fertilizer dose NPK30, deep loosening to 25-27 cm (PCH-4.5), spring harrowing (BZSS-1.0), pre-sowing cultivation (OPO-4.25), consolidation of the soil (3kksh-6), sowing (SSTV-6), the harrowing on shoots in one track (BZSS-1.0), treatment with herbicide (Express, 50g/ha).

scholarly journals Application of 3D cameras in agriculture when evaluating the quality of soil tillage

2016 ◽  
Vol 62 (No. 2) ◽  
pp. 39-49
Author(s):  
M. Kříž ◽  
M. Linda ◽  
J. Svatoš ◽  
M. Hromasová
Keyword(s):  
Soil Surface ◽  
Surface Characteristics ◽  
Field Testing ◽  
Soil Tillage ◽  
Measurement Results ◽  
3D Camera ◽  
Before And After ◽  
Pyramid Model ◽  
Evaluation Of Data

The paper deals with the evaluation of data collected by scanning the agricultural surface with a 3D Photonic Mixer Device (PMD) camera with IFM company electronics and a resolution of 64 × 50 pixels in different scanning modes. After short introduction various methods of measuring of soil surface characteristics are presented. These methods are laser, photogrammetric and radar measurement followed by experimental measurement by kinect system and O3D201 3D camera using the Photonic Mixer Device (PMD) technology. For 3D calibration measurements of the camera a quartered pyramid model was used. Measurement results before and after the field testing area soil tillage are presented.

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