Research Progress of Minimal Tillage Method and Machine in China

Lu, Caiyun; Zhenwei, Tong; Zhong, Guangyuan; Ma, Xiaoli

doi:10.3390/agriengineering3030041

Cited by 22 publications

(19 citation statements)

References 6 publications

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“…It can effectively reduce soil wind and water erosion, improve soil fertility level and drought resistance, avoid straw burning, and alleviate ecological pressure. It is an important measure for achieving sustainable agricultural development [1][2][3][4]. When winter wheat is no-tillage sown in annual double cropping areas of North China, the straw is chopped and returned to the field, and a large amount of the straw on the soil surface is covered, which causes the no-till planter to be easily blocked during operation.…”

Section: Introductionmentioning

confidence: 99%

Design and Experiment of Spiral Discharge Anti-Blocking and Row-Sorting Device of Wheat No-Till Planter

et al. 2022

Agriculture

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Aiming at the problems of the poor passing capacity of machines and low cleaning rate of seed strip during wheat no-tillage sowing in annual double cropping areas of North China, a spiral discharge anti-blocking and row-sorting device (SDARD) was designed and is reported in this paper. After the straw was cut and chopped by the high-velocity rotating no-till anti-blocking knife group (NAKG), the straw was thrown into the spiral discharging mechanism (SDM) behind the NAKG. The chopped straw was discharged to the non-sowing area to reach the effect of seed strip cleaning through the interaction between the SDM and the row-sorting of straw mechanism (RSM). Based on a theoretical analysis for determining the parameters of crucial components, the quadratic rotation orthogonal combination test method was adopted, and the operating velocity of machines (OVM), the rotary velocity of the spiral shaft (RVSS), and the height of the holding hopper from the ground (HHHG) were selected as the test factors. The straw cleaning rate (SCR) was taken as the test index. The discrete element simulation test was carried out, the regression model of the SCR was established, and parameters optimization and field test were carried out. The results show that the significant order of the three influencing factors on the SCR was HHHG > OVM > RVSS. The optimal combination of operating parameters was that OVM was 5 km/h, RVSS was 80 r/min, and HHHG was 10 mm. Under the optimal parameter combination, the average SCR was 84.49%, which was 15.5% higher than the no-till planter without the device, and the passing capacity of machines was great, which met the agronomic requirements of no-tillage sowing of wheat in annual double cropping areas. This study could provide a reference for the design of no-tillage machines.

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Section: Introductionmentioning

confidence: 99%

Design and Experiment of Spiral Discharge Anti-Blocking and Row-Sorting Device of Wheat No-Till Planter

et al. 2022

Agriculture

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“…The most significant difference between conservation tillage and traditional tillage is that the land plowing by the moldboard plow is canceled, and no/minimum tillage is carried out on the farmland under the condition that the crop straw covers the ground surface. By reducing wind, water and soil erosion, the effects of water storage and moisture conservation, increasing production and efficiency can be achieved [1][2][3][4]. The Huang-Huai-Hai region is the largest annual double cropping area in China.…”

Section: Introductionmentioning

confidence: 99%

“…The SSRSD was installed between the no-till anti-blocking knife group (2) and the furrowing opener group (3) of the wheat no-till planter, as shown in Figure 1a. The SSRSD designed in this paper was composed of six SSM (1), and its overall structure is shown in Figure 1b.…”

Section: Introductionmentioning

confidence: 99%

Design and Experiment of Symmetrical Spiral Row-Sorting of the Straw Device Based on Kinematics Analysis

et al. 2022

Agriculture

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This paper designed a symmetrical spiral row-sorting of the straw device (SSRSD) under the condition that the no-till anti-blocking knife cut and chopped the straw to guarantee the machine’s passing capacity. The row-sorting blade (RB) of the symmetrical spiral mechanism (SSM) pushed the straw that fell into the straw hopper to the non-sowing area on both sides of the sowing belt and played the role of row-sorting the straw. Based on a theoretical analysis of the relationship between the material-bearing capacity limit of the SSM and the straw mulching quantity (SMQ) in the actual operating area, the critical parameters of the SSM and its value ranges were determined. The results show that the average straw removing rate (SRR) of the no-till planter with the SSRSD was 87.98%, and the passing capacity of the machine was great. Compared with the no-till planter without the SSRSD, the average SRR was increased by 20.7%.

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“…However, the soil skeleton can have some significant physio-chemical properties that affect soil structural characteristics, such as water flow and retention, compaction and erosion, thermal exchange, and bulk density [17,18], showing in some cases properties similar or higher than the fine earth in the formation of secondary minerals, thus playing a significant role in the soil physio-chemical dynamics as a reservoir of nutrients, cation exchange capacity (ECEC) and adsorption of organic pollutants [19][20][21]. On the other hand, an excessive presence of skeleton in the soil's arable layers hinders or is incompatible with the operational requirements of modern cultivation techniques and machinery (i.e., minimal tillage, precision sowing), which require fields without obstructions and arable layers of fine heart, being easily impeded or damaged by coarser fragments [22][23][24].…”

Section: Introductionmentioning

confidence: 99%

Assessment of a Deep Burial Destoning System of Agrarian Soils Alternative to the Stone Removal and On-Site Crushing

Toscano¹,

Cutini²,

Cabassi³

et al. 2022

AgriEngineering

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Among its many functions, soil represents the active natural medium for plant growth. Different soils have various structural characteristics, that correspond to their qualitative parameters in terms of physical, chemical, and biological fertility. Because of their extremely slow formation processes, soils are also a non-renewable resource, easily subject to degradative processes. Among their mineral constituents many agrarian soils present, in addition to the fine earth, variable percentages of coarse fractions in their arable layer, which interfere with the crop growth, requiring more energy to manage cultivation operations, and damaging the machinery up to making its use impractical. In these conditions, it becomes necessary to proceed with the soil destoning, particularly for the management of Precision Farming techniques. Depending on the percentages, sizes and types of coarse fractions, the soil destoning systems concern: (i) the collection and removal of stones from the field, (ii) the on-site stones crushing, and (iii) the stone burial. In this article, we report the first evaluation of a deep burial destoning system carried out in the CREA Experimental Center of Treviglio (Italy). With the described reclamation system, a significant long-term improvement of soil quality in a 600 mm thick arable layer was achieved; avoiding the shortcomings of the destoning systems as commonly applied in agricultural lands.

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Research Progress of Minimal Tillage Method and Machine in China

Cited by 22 publications

References 6 publications

Design and Experiment of Spiral Discharge Anti-Blocking and Row-Sorting Device of Wheat No-Till Planter

Design and Experiment of Spiral Discharge Anti-Blocking and Row-Sorting Device of Wheat No-Till Planter

Design and Experiment of Symmetrical Spiral Row-Sorting of the Straw Device Based on Kinematics Analysis

Assessment of a Deep Burial Destoning System of Agrarian Soils Alternative to the Stone Removal and On-Site Crushing

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