Design and Construction of a High Speed Inter-Row Cultivator (original) (raw)
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Design, Construction and Field Evaluation of a High Speed Inter-Row Cultivator
University of Mohaghegh Ardabili, 2012
In many parts of the world, row crops are treated with herbicides. Because of environmental concerns, crop cultivation is suggested as an excellent method of weed control. The object of this study was to design and construct a high speed inter-row cultivator. The speed of plowing has a significant effect not only on the depth of plowing but on factors which affect the quality of soil preparation such as loosening of the upper soil layer, cutting roots of the previous crops, covering and plowing in of weeds, leveling the finished surface of the field, displacement of the son layer and so on. In this study, the designed and constructed cultivator has a toolbar, unit frame, disk coulter and a flat sweep. The unit frame is attached to a tractor mounted tool bar by a suspension linkage. The suspension linkage allows the unit frame to move up and down relative to a tool bar that the cultivator unit is attached to. The numerical analysis was performed with COSMOS/M 1.71 FEM software (Structural Research and Analysis Corporation, CA).
Evaluating the Performance of Rotary and Tine Inter-Row Cultivators at Different Working Speeds
J. Agr. Sci. Tech. , 2021
An effective inter-row cultivator must destroy the weeds in the inter-row close to crop area without damaging the plants on the rows. Therefore, it is important to understand the soil disturbance of inter-row cultivation tools for optimizing the design and the use of inter-row cultivators. In this study, the performance of two different inter-row cultivators (the rotary inter-row cultivator and the tine inter-row cultivator) was investigated at three different working speeds (3.52, 6.11 and 7.82 km h-1) and at a working depth of 70 mm under corn planted field conditions. The performance indicators of inter-row cultivators included the soil burial Depth on crop (D), the unaffected strip Width around crop row (W), the Weeding efficiency (W e), and the Damaged Plant ratio (D P). The results of the study indicated that the rotary inter-row cultivator could be operated at 6.11 km h-1 due to acceptable soil movement and low crop damage. However, the tine inter-row cultivator resulted in unacceptable soil movement and crop damage at 6.11 and 7.82 km h-1 working speeds.
A Review on Inter-row Crops Mechanical Weeder
Weeds can be thought of as plants growing in the wrong habitation, place and time thereby, doing further damage than improving the crop. Taking out weed growths is a vital practice but in the same way its time consuming. Increase in the use of machine-like intra-row weeder is of much interest around the world today because of its impact on the environment and a growing request for healthy foods produced. Today the agricultural industries wants non-chemical weed control that can safeguard consumers demand for high quality food crops and pay special attention to food safety. Through the mechanical development of different devices for weeding manually, such as accurate inter-row and intra-row weeders, weeds can be mitigated. Through these mechanical means food production safety can be guaranteed. There is a need to review existing mechanical weeders to know their merits and demerit.
AN AUGER TINE INTER FURROW CROP CULTIVATOR
The 18th. Annual Conference of the Misr Journal of Agricultural Engineering, 2011
The main aim of this research was to develop and test an implement for inter furrow cultivation. The unit is supposed to uproot and kill weeds at the early stage of the crop growth along the furrow sides and avoid crop seedlings damage. The unit also should open furrows to facilitate easy irrigation. The cultivator was fabricated and tested in the Faculty of Agriculture, Al-Azhar University, Assiut. The preliminary experiments show that the prototype of the cultivator was heavy and required high power to move. The unit was modified to improve power transmission. The main power shaft was developed to a telescopic shaft to permit adjusting the machine cultivation width according to furrow width. The ratio of the auger tine tip linear speed to the forward speed (λ) is considered one of the important parameters of testing the unit. The value of λ 2 = 4.14 showed the most efficient adjustment. The most efficient results also were achieved at cultivation depth 6 cm. the performance of the prototype equipped with ridger was improved because the ridger opens the furrow better for irrigation. The well fabricated prototype may cultivate 0.15 to 0.22 fed/h at 75 % cultivator efficiency. INTRDODUCTION echanical weed control is the main operation used for weed control. The operation reduces the drudgery involved with manual hoeing. Mechanical method requires both accurate transverse and longitudinal positional control to avoid crop damage. So far, commercial automated mechanical methods are not spread for operation in the inter-row area (Melander et al., 2005). A few research projects, however, have identified prospective technologies that would allow highly selective mechanical weed control within crop rows 1 Prof. and head of Ag. Eng. Dep., Fac. of Ag., AL-Azhar U. Assiut. 2 Assoc. Prof., Ag. Eng. Dep., Fac. of Ag., AL-Azhar U. Assiut. 3 Prof., Ag. Eng., Ag. Res. Cen., Ag. Eng. Res. Institute. 4 Demonstrator, Ag. Eng. Dep., Fac. of Ag., AL-Azhar U. Assiut. M Agricultural engineering programs as related to employment requirements: 430-440
Effect of Different Working and Tool Parameters on Performance of Several Types of Cultivators
Agriculture, 2020
In this study, the effects of tillage depth, forward speed and soil moisture content during the cultivator operation on the draft force, energy requirement, and soil disturbance were investigated using five types of cultivators. The experiments were performed in the factorial design based on the randomized complete block design (RCBD) with three replications in loamy sand soil. Different soil moisture contents (factor A) from 5 to 16% for dry soils and 17 to 35% for wet soils, forward speed of tractor (factor B) at four levels of 1.16, 1.61, 1.97, and 3.82 km/hand working depth (factor C) at two levels of 10 and 20 cm were selected. The analysis of variance results showed that the main effects on the draft force, energy requirement, and soil disturbance were significant. With increasing the forward speed, working depth, and blade width, the draft force, energy requirement, and soil disturbance significantly increased. As the soil moisture content increased, the amount of draft force...
PERIODICAL OF THE COMITTEE OF AGRICULTURAL AND BIOSYSTEM ENGINEERING OF THE HUNGARIAN ACADEMY OF SCIENCES and SZENT ISTVÁN UNIVERSITY Faculty of Mechanical Engineering, 2018
A mechanical row crop weeder was developed to overcome the tedious manual weeding operation experienced in a row crop farming system and its performance evaluated. The machine is made up of a frame, handle, hoeing disk, pneumatic wheel, belt/pulley and power unit. Three different weeding tool types (U-blade, L-blade and Hoe-blade) were developed and used at three different walking speeds of 0.2, 0.4, and 0.6 m/s in three replications. The experimental plots were 27 which measured 800cm by 26cm each. Parameters such as weeding efficiency, weeding index, Field efficiency, effective field capacity and theoretical field capacity were measured using standard known formulae. This weeding machine has a swath-width of cut of 26cm which corresponds to an average furrow width of farm cropping system. Results from field performance showed that both theoretical and effective field capacities increased with increase in the walking speed of the operator while field efficiency decrease with increase in the walking speed. The mean field efficiencies obtained were 93.58 %, 91.91 % and 85.64 % at the walking speeds of 0.2 m/s, 0.4 m/s and 0.6 m/s respectively. ANOVA revealed that the working speed and tool type have significant effect on the weeding index and weeding efficiency of the machine at p<0.05. The results showed that weeding index decreased with increasing walking speeds with all the tool types investigated, the walking speed of 0.2 m/s had the highest weeding index of 0.937 with the L-blade tool type. The least weeding index of 0.580 was obtained at the walking speed of 0.6 m/s with the hoe-blade tool type. The highest weeding efficiency of 93.7 % was obtained for 0.2 m/s walking speed and L-blade tool type. This device will contribute greatly to weeding status of row crop farms for small scale farmers
Development and Testing of Manually Operated Row Crop Weeder
2021
In Ethiopia, wheat is sown by different methods, broadcasting and row sowing depending upon the type of soil, topography of land and labours. In order to increase the productivity, efforts have been made through row sowing systems. With the advent of row sowing and the adoption of high yielding varieties interest in row seeding is seen among the farmers, which is not only maintain plant population but also offers additive advantages, such as intercultural operations and proper weed control. The weed control operations are mainly done by three methods such as hand weeding, hoe weeding and herbicides application. In hoe weeding, weeds are removed by using an indigenous tool, which is more effective but it is expensive, labour intensive as well as time consuming. Moreover, the labour requirement for weeding depends on weed flora, weed intensity, time of weeding, and soil moisture at the time of weeding and efficiency of worker (Datta el al., 1974). Nowadays herbicide usage is increasin...
AN AUGER TINE INTER FURROW CROP CULTIVATOR. M
Dr. Nabil Shaban Elkaoud, 2011
The main aim of this research was to develop and test an implement for inter furrow cultivation. The unit is supposed to uproot and kill weeds at the early stage of the crop growth along the furrow sides and avoid crop seedlings damage. The unit also should open furrows to facilitate easy irrigation. The cultivator was fabricated and tested in the Faculty of Agriculture, Al-Azhar University, Assiut. The preliminary experiments show that the prototype of the cultivator was heavy and required high power to move. The unit was modified to improve power transmission. The main power shaft was developed to a telescopic shaft to permit adjusting the machine cultivation width according to furrow width. The ratio of the auger tine tip linear speed to the forward speed (λ) is considered one of the important parameters of testing the unit. The value of λ 2 = 4.14 showed the most efficient adjustment. The most efficient results also were achieved at cultivation depth 6 cm. the performance of the prototype equipped with ridger was improved because the ridger opens the furrow better for irrigation. The well fabricated prototype may cultivate 0.15 to 0.22 fed/h at 75 % cultivator efficiency. INTRDODUCTION echanical weed control is the main operation used for weed control. The operation reduces the drudgery involved with manual hoeing. Mechanical method requires both accurate transverse and longitudinal positional control to avoid crop damage. So far, commercial automated mechanical methods are not spread for operation in the inter-row area (Melander et al., 2005). A few research projects, however, have identified prospective technologies that would allow highly selective mechanical weed control within crop rows
IRJET- Design of Wheel Hoe Weeder for Wide-Row Crops
IRJET, 2020
wheel hoe weeders have been developed for manual weeding in about 20 cm row spaced crops.These weeders are unable to provide uniform depth of cut and lateral stability. Keeping these facts in view, a weeder, employing two innovative techniques such as application of 'wheels hoe weeder' and 'Long handle' was developed for wide row spaced crops. The slicing/cutting the weeds with best possible depth control were the main considerations for its design. A push-type operated wheel weeder with an long handle, was designed, constructed and tested.showed that it could weed satisfactorily, and eliminate the drudgeries associated with the use of the short handle hoe such as backache, pains at the spine and lower waist region. Field capacity and efficiency of 0.050ha/hr and 87.5% were obtained respectively.Furthermore, the average weeding index and performance index obtained were 86.5% and 1108.48, respectively. At a speed of 0.04m/s, a high efficiency of 91.7% at 0.4m depth of cut was obtained. The developed wheeled long-handle weeder was found efficient.
Design and evaluation of a motorized multi-grain crop planter
2020
The economic importance of grain crops such as maize, soybean, cowpea and groundnut to the growing population of Nigeria, demands that an urgent measurement be undertaken to ensure improved productivity to meet food and other requirements by man and animals. The pre-design experimentation was carried out on yellow maize (Zea mays), Ife Brown cowpea (Phaseolus vulgaris), Seed soybean (Glycine max) and groundnut (Arachis hypogaea L). Some properties of the used grain crops were determined to design, fabricate and assemble a locally made motorized vertical seed-plate planter. Design criteria, calculations and analysis of various components of the machine were critically considered and determined in the cause of the development. The geometric mean diameter of 8.26 mm, 8.72 mm, 9.51 mm and 6.52 mm were recorded for maize, cowpea, groundnut and soybean grains respectively, with respective groove depths of 8 mm, 7 mm, 9 mm and 6 mm. It was revealed from the results that the planter had a u...