Brief Review of Minimum or No-Till Seeders in China

Jiang, Sufei; Wang, Qingjie; Zhong, Guangyuan; Zhenwei, Tong; Wang, Xiuhong; Xu, Jing

doi:10.3390/agriengineering3030039

Cited by 11 publications

(6 citation statements)

References 10 publications

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“…An air-suction seed dispenser has extensive applicability to seed shape, high precision of single seeding, and meets the requirements of high-speed operation in terms of stability, thus high-speed precision seeding equipment mostly adopts an air-suction seed dispenser mechanism [2,3]. At present, traditional intensive and refined farming has been gradually replaced by machines to meet the requirements of agricultural development in that year, which has led to precision seeding technology appearing in the public vision [4,5].…”

Section: Introductionmentioning

confidence: 99%

Design and Experiment of Air-Suction Maize Seed-Metering Device with Auxiliary Guide

Ding,

Yuan,

Dou

et al. 2024

Agriculture

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Due to the irrational design of the seed discharge plate and the vacuum chamber, the high-speed seed filling effect of the air-suction maize precision seed-metering device is poor. Therefore, an air-suction maize seed-metering device with an auxiliary guide is designed to realize high-speed precision seed discharging. An auxiliary guide filling theory is put forward, and the design of the seed plate type hole charging structure is formulated. Fluent 2022 software is used to analyze nine kinds of vacuum chamber structures; the optimal vacuum chamber structure parameters were determined by polar analysis. In order to investigate the changes of negative pressure and flow speed under the dynamic flow field, a slip grid was used to analyze the dynamic flow field with three different operating speeds and negative pressures. It found that the size of negative pressure did not affect the flow field distribution, and the pressure and flow speed gradually decreased as the distance from the inlet was farther away; meanwhile, the negative pressure distribution and air speed distribution were almost unchanged when the holes at different rotational speeds were at the same position. Finally, bench tests were carried out, and three indexes, namely, the qualified index, the multiple index and the missing index, were selected, with operating speed and negative pressure as factors, two-factor five-level orthogonal test was carried out, and the optimal parameter combinations at 6.0, 7.5, 9.0, 10.5, and 12 km/h forward velocity were derived and verified by regression equations. The results showed that the designed seed-metering device was repeated five times when the pressure of the vacuum chamber was −3.5 kPa and the rotational speed of the seed-metering device was 23 r/min, the average grain spacing qualified index was 95.8%, the missing index was 1.6%, the multiple index was 2.6%, and the indexes met the requirements of precision sowing. It is of great significance for our country’s seeder to develop in the direction of high-speed and precision.

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Section: Introductionmentioning

confidence: 99%

Design and Experiment of Air-Suction Maize Seed-Metering Device with Auxiliary Guide

Ding,

Yuan,

Dou

et al. 2024

Agriculture

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“…However, in Asia, small‐scale farmers (Muramoto et al, 2009) have no access to these modern agriculture technologies, such as synthetic fertilizers, pesticides, and herbicides (Yagioka et al, 2015). Moreover, due to the small‐scale farming type in Asia, the NT fertilizer seeder's working width range from 160 to 457 cm compared with that of the United States, with a 300–600 cm working width (Jiang et al, 2021). CTs is also common in Asia since CT in various climatic regions typically accelerates soil warming, decomposition of residue, and temporarily optimizes soil physical properties for plant growth.…”

Section: Introductionmentioning

confidence: 99%

“…Moreover, due to the small-scale farming type in Asia, the NT fertilizer seeder's working width range from 160 to 457 cm compared with that of the United States, with a 300-600 cm working width (Jiang et al, 2021). CTs is also common in Asia since CT in various climatic regions typically accelerates soil warming, decomposition of residue, and temporarily optimizes soil physical properties for plant growth.…”

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confidence: 99%

Impact of no‐tillage on soil quality and crop yield in Asia: A meta‐analysis

2022

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No-tillage (NT) (or zero-tillage) has been widely used to mitigate the adverse effects caused by intensive tillage. However, the long-term effectiveness of NT is highly dependent on agriculture field management, soil type, and climatic conditions. NT under different climatic condition fluctuations and soil conditions has not also been considered adequately in Asia. Furthermore, the high demand for food production in Asia requires a deeper understanding of the impact of NT on soil properties and crop production. Therefore, this meta-analysis was conducted using 64 peer-reviewed articles to evaluate the effects of NT on soil organic carbon (SOC), soil carbon storage, mean weight diameter (MWD), bulk density, water-stable aggregates, water content, other soil chemical properties, and yield responses. Our results showed that NT significantly increased SOC content overall than conventional tillage (CT). Likewise, as observed at a 0-10 cm soil depth, SOC content significantly increased by 77.0% in NT compared to CT. Alternatively, although overall, NT favoured the accumulation of soil C by 53.2% than CT, and this difference was even more impressive at the 0-10 cm layer by 77.0% than CT. Moreover, overall NT significantly increased MWD, soil available P, and >2 mm aggregates than CT. In contrast, even though NT did not significantly decrease smaller than the 0.25 mm aggregates than CT in the 0-10 cm layer, NT increased exchangeable K by 81.0% than CT. Results also showed that while NT and CT had no significant effects on crop yield, NT slightly increased soybean and wheat yield, and CT increased rice and maize yield than NT. Based on these results, NT is proposed as a promising practice to enhance soil quality and is plausible to increase crop yield in Asia.

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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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Brief Review of Minimum or No-Till Seeders in China

Cited by 11 publications

References 10 publications

Design and Experiment of Air-Suction Maize Seed-Metering Device with Auxiliary Guide

Design and Experiment of Air-Suction Maize Seed-Metering Device with Auxiliary Guide

Impact of no‐tillage on soil quality and crop yield in Asia: A meta‐analysis

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

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