scholarly journals Functional properties of blade tiller working tools

2018 ◽  
Vol 64 (No. 2) ◽  
pp. 63-69
Author(s):  
Pražan Radek ◽  
Hůla Josef ◽  
Kovaříček Pavel ◽  
Čedík Jakub ◽  
Gerndtová Ilona ◽  
...  
Keyword(s):  
Winter Wheat ◽  
Cross Section ◽  
Functional Properties ◽  
Specific Resistance ◽  
Tensile Force ◽  
Soil Tillage ◽  
Loamy Soil ◽  
Primary Cultivation ◽  
New Type

After the harvest of winter wheat, the tensile force, cross section of loosened soil and specific resistance of soil were measured on a loamy soil plot. During the comparative measurements, 3 blades were used with chisel width of 20 mm, 40 mm and 75 mm. In case of all blades, the measurements were carried out at the depth of 100, 200 and 300 mm. In the course of measurements, the standards of blades were attached in a measuring frame on six-component hinge with connected tensometric sensor. The selected blades were developed for a new type of tiller destined for primary cultivation of soil. Moreover, in case of a blade equipped by chisel there were used side wings of a width of 110, 150 and 200 mm for tillage into a depth of 100 mm. It was found that the width of blade chisels did not have a statistically significant effect on the values of specific resistance of soil during the soil tillage. At all widths of blade chisels, a trend of an increase in specific resistance of soil was recorded at growing recess into the soil.

scholarly journals Effect of crop residues on CO2 flux in the CTF system during soil tillage by a disc harrow Lemken Rubin 9

2013 ◽  
Vol 59 (Special Issue) ◽  
pp. S15-S21
Author(s):  
T. Šima ◽  
M. Dubeňová
Keyword(s):  
Carbon Dioxide ◽  
Winter Wheat ◽  
Greenhouse Gases ◽  
Carbon Dioxide Emissions ◽  
Crop Residues ◽  
Soil Tillage ◽  
Loamy Soil ◽  
Controlled Traffic

Carbon dioxide is one of the most important greenhouse gases. Agriculture, especially soil tillage, contributes to CO<sub>2</sub> emissions significantly. The aim of the paper was the comparison of the amounts of carbon dioxide emissions released from the soil into the atmosphere depending on the controlled traffic farming (CTF) and crop residues. Three variants of the experiment were realised: before the soil tillage, immediately after the soil tillage, and seven days after the soil tillage. The soil tillage was carried out after the harvest of winter wheat by disc harrow Lemken Rubin 9 with a tractor John Deere 8230 on the loamy soil. The monitoring points were selected in parts of the field with and without the crop residues and in trafficked and non-trafficked areas. The CTF system affects CO<sub>2</sub> flux, the amounts of emissions from the non-trafficked areas being higher than those from the trafficked areas. The crop residues left on the field cause a decrease of CO<sub>2</sub> flux. The incorporation of crop residues causes an increase of CO<sub>2</sub> flux.

scholarly journals RESEARCH REGARDING THE EFFICIENCY OF SOYBEAN CULTIVATION IN DIFFERENT TILLAGE SYSTEMS AND THEIR INFLUENCE ON SOIL COMPACTION, ACCUMULATION AND WATER STORAGE

2021 ◽  
Vol 14 ◽  
pp. 1-8 ◽  
Author(s):  
Felicia Cheţan ◽  
Cornel Cheţan ◽  
Felicia Mureşanu ◽  
Loredana Suciu ◽  
Ioana Crişan
Keyword(s):  
Winter Wheat ◽  
Crop Rotation ◽  
Soil Compaction ◽  
Specific Resistance ◽  
Water Storage ◽  
Soil Tillage ◽  
No Tillage ◽  
Tillage Systems ◽  
Yield Difference ◽  
Made In

In the last years there has been a slight increase in average annual temperatures, as well as a high fluctuation in the distribution of rainfall, thus the reduction of the effects of atmospheric and pedological drought is part of the reasons that determine the orientation towards new variants of soil tillage. The experiment conceived and performed at ARDS Turda includes four variants of soil tillage: plow with the turn of the furrow (CS), chisel (MT), disk (MD) and no tillage (NT), in a 3-year crop rotation of soybean - winter wheat - maize. The momentary water reserve was higher in the MD and NT system compared to the CS, MT. The specific resistance of the soil to penetration (Rp) in NT, MD are higher compared to the CS and MT systems. Soybeans can be cultivated in a MT, the yield difference compared to the CS is 107 kg/ha. Compared to CS (66.5 L/ha) significant reductions of diesel consumption are made in the MD system (21 L/ha) and in the NT (31.7 L/ha).

Research on the Properties of Functional Chitin Fiber

2013 ◽  
Vol 821-822 ◽  
pp. 94-98
Author(s):  
Yan Jun Liu ◽  
Fang Fang
Keyword(s):  
Tensile Properties ◽  
Cross Section ◽  
Moisture Absorption ◽  
Antibacterial Property ◽  
Specific Resistance ◽  
Reference Value ◽  
Experimental Examination ◽  
Textile Materials ◽  
Fiber Product ◽  
New Type

Chitin fiber is a new type of green functional textile materials that can biodegradation, these years more and more people pay great attention to it for its excellent properties of antibacterial, moisture-absorption propertyetc etc.. On the basis of experimental examination, the length wise appearance and cross section appearance , the tensile properties, the moisture-absorbency, property , crystallinity, crientation, mass specific resistance and antibacterial property etc of the Chitin fiber are studied in this paper. The conclusions obtained in this paper have important reference value to the development of Chitin fiber product and its processing.

Effect of the year on the weed condition of winter wheat in different soil tillage treatments

2005 ◽  
Vol 33 (1) ◽  
pp. 73-76
Author(s):  
Attila Percze ◽  
Csilla Kleinheincz ◽  
Aniko Farkas
Keyword(s):  
Winter Wheat ◽  
Soil Tillage

scholarly journals Study on mechanical properties of a new type of prefabricated GRC mold shell

2019 ◽  
Vol 136 ◽  
pp. 02030
Author(s):  
Chen Dong ◽  
Chen Ming ◽  
Cai Ouyang ◽  
Li Pengkun
Keyword(s):  
Mechanical Properties ◽  
Production Process ◽  
Cross Section ◽  
Stress System ◽  
Research Results ◽  
Floor Space ◽  
Section Size ◽  
Speed Up ◽  
New Type ◽  
Prefabricated Building

The GRC formwork structural column adopts the factory-based vertical prefabrication production process, which can reduce the floor space, reduce the formwork loss, speed up the construction progress, promote the full decoration of the prefabricated building, and improve the efficiency of the assembly construction. major. In order to optimize the production process of prefabricated GRC formwork column, the overall stress system of GRC formwork structure is analyzed in the concrete pouring process, and the thickness of GRC formwork, the number of steel hoops and the GRC mode are considered. The influence of the shell cross-section size on the mechanical properties. The research results can provide reference for the optimization and design of prefabricated GRC formwork column production process.

A new type of 3D [(MII)2(TCNQ−II)3]2−coordination network with spacious channels of hexagonal cross-section generated from TCNQH2

CrystEngComm ◽  
2012 ◽  
Vol 14 (2) ◽  
pp. 351-354 ◽  
Author(s):  
Brendan F. Abrahams ◽  
Robert W. Elliott ◽  
Timothy A. Hudson ◽  
Richard Robson
Keyword(s):  
Cross Section ◽  
Coordination Network ◽  
Hexagonal Cross Section ◽  
New Type

Winter wheat and soybean zinc uptake in different soil tillage systems

2009 ◽  
Vol 37 (2) ◽  
pp. 305-310 ◽  
Author(s):  
B. Stipesevic ◽  
D. Jug ◽  
I. Jug ◽  
M. Tolimir ◽  
M. Cvijovic
Keyword(s):  
Winter Wheat ◽  
Zinc Uptake ◽  
Soil Tillage ◽  
Tillage Systems

scholarly journals Slit-type Breakwater; Box-type Wave Absorber

1976 ◽  
Vol 1 (15) ◽  
pp. 154 ◽  
Author(s):  
Shoshichiro Nagai ◽  
Shohachi Kakuno
Keyword(s):  
Cross Section ◽  
Water Depth ◽  
Vertical Wall ◽  
Bottom Wall ◽  
Front Wall ◽  
Type Wave ◽  
Composite Type ◽  
New Type ◽  
Vertical Walls ◽  
Horizontal Bottom

A box-type wave absorber, which is composed of a perforated vertical front-wall and a perforated, horizontal bottom-wall, has been proved by a number of experiments to show lower coefficients of reflection and more distinguished reduction of wave pressures than the perforated vertical- wall breakwater. A breakwater of composite-type, which is 1500 m long and to be built at a water depth of 10 to 11 m below the Datum Line in the Port of Osaka, is being designed to set this new type of wave absorber in the concrete caissons of the vertical-walls which is named "a slit-type breakwater". The typical cross-section of the breakwater and the advantages of the slit-type breakwater are presented herein.

scholarly journals Influence of soil tillage and weed suppression on winter wheat yield

2011 ◽  
Vol 56 (2) ◽  
pp. 111-119
Author(s):  
Branimir Mikic ◽  
Bojan Stipesevic ◽  
Emilija Raspudic ◽  
Georg Drezner ◽  
Bojana Brozovic
Keyword(s):  
Winter Wheat ◽  
Wheat Yield ◽  
Conventional Tillage ◽  
Weed Suppression ◽  
Recommended Dose ◽  
Soil Tillage ◽  
Tillage Systems ◽  
Half Dose ◽  
Winter Wheat Yield ◽  
High Yields

Modern soil tillage systems based on different tools than mouldboard plough have very often stronger weed occurrence, which can be a serious problem for achieving high yields. An obvious solution for weed suppression is a herbicide, whose improper use can deteriorate environment and lead toward serious ecological problems. In order to investigate the interaction between soil tillage and herbicide, trial was set up in Valpovo in seasons 2008/09 - 2010/11. Two soil tillage systems (CT-conventional tillage, based on mouldboard ploughing, and CH-chiselling and disk harrowing, without ploughing) and five herbicide treatments (NH-control, no herbicides; H10- recommended dose of Herbaflex (2 l ha-1); H05-half dose of Herbaflex; F10- recommended dose of Fox (1.5 l ha-1); and F05-half dose of Fox) were applied to winter wheat crops. Results showed similar effects of soil tillage on the winter wheat yield, whereas different herbicide dosages showed similar weed suppression and influence on winter wheat yield.

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