Corn productivity and soil characteristic alterations following transition from conventional to conservation tillage

Afshar, Reza Keshavarz; Cabot, Perry E.; Ippolito, James A.; Dekamin, Majid; Reed, Bryan; Doyle, Hunter; Fry, Jim

doi:10.1016/j.still.2022.105351

Cited by 11 publications

(2 citation statements)

References 44 publications

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“…Similar results were observed by Afshar et al. (2022), studying changes in soil characteristics after the transition from conventional tillage to conservation tillage in corn productivity, who observed a positive trend in soil properties. These findings indicate the potential of No till (NT) to improve the sustainability of corn production in the medium and long term, in agreement with the results of other studies, such as Govaerts et al.…”

Section: Resultssupporting

confidence: 90%

Impacts of the tillage systems on the production of green corn (Zea mays L.) in long‐term plots in Northeastern Brazil

Santos,

Pedrotti,

Holanda

et al. 2024

Soil Use and Management

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In the current global context of climate change and the increasing demand for sustainability, optimizing agricultural production is very important in order to meet the demands for food and to mitigate environmental impact. To achieve sustainable agricultural production, particularly in regions with tropical soil and climate conditions, is necessary to adopt conservation‐oriented techniques. This includes no‐tillage system, the use of soil‐cover crops, and the application of inoculants. The objective of this research was, at the end of the 22nd cropping season, to assess the influence of soil compaction in the production of green corn (Zea mays L.) in a long‐term field experiment. This study was conducted under different soil tillage systems in a Red‐Yellow Ultisol from the Coastal Tablelands of northeastern Brazil. Three soil tillage systems were applied: Conventional Tillage (CT), Minimum Tillage (MT), and No‐tillage (NT). These were combined with four previous crops: cowpea (Vigna unguiculata), crotalaria (Crotalaria juncacea), pigeon pea (Cajanus cajan), and millet (Pennisetum glaucum), as well as two levels of nitrogen fertilizer application: (1) 100% of the recommended N dose, and (2) 50% of the recommended N dose plus Azospirillum brasilense inoculant. The experimental design consisted of strip plots with subplots divided and randomized within each strip, with three replications. Soil compaction was assessed using parameters of soil density (SD) and soil mechanical resistance to penetration (MRP) in conjunction with moisture content (MC). The principal component analysis (PCA) highlighted that conservation‐oriented systems exhibited greater soil organic carbon (SOC) levels, leading to increased productivity of commercial green corn cobs. The synergistic effect of diversifying previous crops and adopting conservation tillage systems, especially in soils under long‐term tillage, resulted in heightened productivity of commercial green corn ears.

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Section: Resultssupporting

confidence: 90%

Impacts of the tillage systems on the production of green corn (Zea mays L.) in long‐term plots in Northeastern Brazil

Santos,

Pedrotti,

Holanda

et al. 2024

Soil Use and Management

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“…Conservation tillage technology is a new agricultural tillage system and technology system with soil health as the core, which is based on the methods of minimum-tillage, no-tillage, surface micro-topography transformation and direct sowing on straw mulched farmland. It aims to increase soil organic matter content and construct a fertile tillage layer and has the advantages of water storage, improving soil structure, reducing soil erosion, improving soil fertility and increasing crop yield [1,2]. In northeast China, where corn is grown on a large scale and the degree of agricultural mechanization is high, combine harvesters are usually used to harvest and return the full amount of corn stover to the ground by shredding.…”

Section: Introductionmentioning

confidence: 99%

Design and Test of the Clearing and Covering of a Minimum-Tillage Planter for Corn Stubble

Hou

Wang

et al. 2022

Agriculture

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Conservation tillage technology can reduce wind erosion and soil erosion, improve soil fertility, avoid straw burning and relieve ecological pressure. It is an important measure to achieve sustainable agricultural development. In northeast China, there is a large amount of straw covering the ground after the corn machine harvest, which can easily lead to the blockage of the soil-touching parts during no-tillage seeding, affecting sowing quality and crop yield. In order to solve the above problems, the clearing and covering of a minimum-tillage planter for corn stubble was developed. The machine can complete multiple processes, such as seedbed preparation, seeding, fertilization, covering and suppression, straw covering, etc., in a single entity. This paper focuses on the design of the straw cleaning device and uses discrete element method software (EDEM 2018, Altair Engineering, Troy, MI, USA) to establish the straw cleaning device–straw–soil discrete element simulation model. The quadratic-regression orthogonal center-of-rotation combination test method is used to optimize the parameter combination of the machine, using the operating speed, the speed of the knife roller and the penetration depth of the knife as the test factors and using the rate of cleaning straw and the equivalent power consumption as the evaluation index. The results show that each factor has a significant influence on the performance evaluation indices, and the order of influence of each factor on the rate of cleaning straw is operation speed > penetration depth of knife > speed of knife roller, and the order of influence of each factor on the equivalent power consumption is penetration depth of knife > speed of knife roller > operation speed. The optimal combination of parameters is a 5.5–6.2 km/h operation speed, a 500 rpm speed of the knife roller, a 40 mm penetration depth of the knife, a straw-cleaning rate of more than 90% and an equivalent power consumption of less than 8 kW. This study provides technical and equipment support for the promotion of conservation tillage technology in Northeast China.

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Challenges and emerging opportunities for weed management in organic agriculture

Dhakal,

Zinati,

Fulcher

et al. 2024

Advances in Agronomy

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Corn productivity and soil characteristic alterations following transition from conventional to conservation tillage

Cited by 11 publications

References 44 publications

Impacts of the tillage systems on the production of green corn (Zea mays L.) in long‐term plots in Northeastern Brazil

Impacts of the tillage systems on the production of green corn (Zea mays L.) in long‐term plots in Northeastern Brazil

Design and Test of the Clearing and Covering of a Minimum-Tillage Planter for Corn Stubble

Challenges and emerging opportunities for weed management in organic agriculture

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