Short-term Conservation Tillage Effects on Corn Silage Yield and Soil Quality in an Irrigated, Arid Agroecosystem

Idowu, Omololu John; Sultana, Sifat; Darapuneni, Murali; Beck, Leslie L.; Steiner, Robert L.

doi:10.3390/agronomy9080455

Cited by 31 publications

(22 citation statements)

References 43 publications

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“…Other studies in the United States and Canada using conventional or conservation tillage practices resulted in similar corn yields (Aflakpui et al, 1994;Beyaert et al, 2002;Carter, Berg, & Sanders, 1991;Omololu, Sultana, Darapuneni, Beck, & Steiner, 2019;Smith, Carter, & Imholte, 1992), as was true in our study when herbicides were applied in the fall or spring to terminate the glyphosate-resistant alfalfa. However, there are studies in which yields differ based on tillage.…”

Section: Silage Corn Yieldsupporting

confidence: 82%

Tillage method and glyphosate‐resistant alfalfa termination timing affect soil properties and subsequent corn yield

et al. 2020

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Application of glyphosate [N‐(phosphonomethyl) glycine]‐containing herbicides and tillage, alone or in combination, has been the standard for removing declining alfalfa (Medicago sativa L.) stands. With glyphosate no longer an option to control glyphosate‐resistant alfalfa, different termination strategies are needed. Field studies across four site‐years in Utah evaluated the effect of tillage type and timing (fall conventional till, spring conventional till, fall strip‐till, spring strip‐till, and no‐till) and herbicide timing (fall, spring, in‐crop, and no herbicide) of 2,4‐D (2,4‐dichlorophenoxyacetic acid) and dicamba (3,6‐dichloro‐2‐methoxybenzoic acid) on penetration resistance, alfalfa regrowth, corn (Zea mays L.) emergence rate, and silage corn yield. Across tillage treatments, fall, spring, and in‐crop herbicide timings compared with no herbicide reduced alfalfa stem count and biomass by at least 74 and 92%, respectively. Emergence rate was greatest under fall and spring conventional till or spring strip‐till compared with fall strip‐till or no‐till. Silage corn yield was greatest and similar with fall or spring herbicide applications for all tillage systems and conventional tillage with an in‐crop herbicide application (19–27 Mg ha−1), followed by in‐crop herbicide application for conservation tillage systems and fall and spring conventional till without herbicide application (14–20 Mg ha−1), and lastly when only conservation tillage was used to terminate alfalfa (5–15 Mg ha−1). Silage corn yield can be optimized when glyphosate‐resistant alfalfa is terminated with herbicides prior to planting, regardless of tillage type or timing. Termination of glyphosate‐resistant alfalfa by herbicides after corn emergence, depending on tillage, reduces silage corn yield 9–19%.

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Section: Silage Corn Yieldsupporting

confidence: 82%

Tillage method and glyphosate‐resistant alfalfa termination timing affect soil properties and subsequent corn yield

et al. 2020

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“…According to its role on agricultural production in a tropical environment, the purpose of tillage is to ensure the well establishment of crops, improve water and air circulation of in the soil, promote warming, limit water runoff and weed infestations (Kurothe et al, 2014;Kiboi et al, 2019). Despite all the benefits mentioned above, many problems arise from continuous, yearly intensive tillage of agricultural soils (Idowu et al, 2019). Intensive disturbances of the soil may decrease soil quality (e.g., reducing organic matter, increasing soil erosion, etc.)…”

Section: Introductionmentioning

confidence: 99%

Influence of soil conservation practices on soil moisture and maize crop (Zea mays L.) productivity in Centre Benin

Akplo¹,

Alladassi²,

Martinien³

et al. 2020

Afr. J. Plant Sci.

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Soil quality constitutes a major factor for crops growth. This study aimed at determining the sustainable soil conservation practices that would increase maize growth as well as production and improve the soil moisture. Two experimental sites were chosen: Dan localized on Acrisol and Zazounmè localized on ferralsol. Two cropping seasons were investigated: the long rain seasons of 2018 and 2019. The experimental design was split-plot with four replications. The main factor was tillage with three modalities: no-tillage (NT); ridging parallel to the slope (PR); Isohypse ridging (IR) and the second factor was mulching with four amounts: 0, 3, 5 and 7 t.ha -1 . Tillage, mulch amount and their interaction significantly influenced the soil moisture, maize growth and yield over the two investigated cropping seasons at both sites whereby the highest values were obtained under IR for tillage, 7 t.ha -1 (for mulch amount) and IR7M (for the interaction tillage x mulch amount). Overall, IR significantly increased the maize growth speed by 8% at Dan and by 16% at Za-zounmè; the maize grain yield by 33% at Dan and by 30% at Za-zounmè and the soil water content by 24% at Dan and 20% at Za-zounmè, in comparison with No-Tillage. An increasing effect of mulch amount was also observed. As far as mulching is concerned, the highest values (in average of LR2018 and LR2019) of growth speed (3.77 cm.day -1 at Dan and 4.08 cm.day -1 at Za-zounmè); grain yield (3003.03 at Dan and 3471.09 kg.ha -1 at Za-zounmè) and soil water content (26.89 mm at Dan and 20.44 mm at Za-zounmè) were observed. This suggests that isohypse ridging associated with an appropriate amount of organic mulch could be an option to mitigate dry spells and drought and improve local farmers' income in the area of low rainfall in sub-Sahara Africa.

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“…Zonal tilling, including strip-till, is appropriate for sustainable farming systems. Specialised machines are now allowing strip-till one-pass to be used to cultivate crops with wide [14,15], medium [16,17], and narrow row spacing [18,19]. It combines the advantage of conventional tillage, plough tillage, and no-till systems.…”

Section: Introductionmentioning

confidence: 99%

A Strip-Till One-Pass System as a Component of Conservation Agriculture

et al. 2020

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Conservation agriculture has three main pillars, i.e., minimum tillage, permanent soil cover, and crop rotation. Covering the soil surface with plant residues and minimum mechanical soil disturbance can all result from introducing a strip-till one-pass (ST-OP) system. The aim of this study was to determine the impact of the ST-OP technology on the management of plant residues, soil properties, inputs, and emissions related to crop cultivation. We compared the effect of a ST-OP system against conventional tillage (CT) using a plough, and against reduced, non-ploughing tillage (RT). Four field experiments were conducted for evaluating the covering of soil with plant residues of the previous crop, soil loss on a slope exposed to surface soil runoff, soil structure and aggregate stability, occurrence of soil organisms and glomalin content, soil moisture and soil water reserve during plant sowing, labour and fuel inputs, and CO2 emissions. After sowing plants using ST-OP, 62.7–82.0% of plant residues remained on the soil surface, depending on the previous crop and row spacing. As compared with CT, the ST-OP system increased the stability of soil aggregates of 0.25–2.0 mm diameter by 12.7%, glomalin content by 0.08 g·kg−1, weight of earthworms five-fold, bacteria and fungi counts, and moisture content in the soil; meanwhile, it decreased soil loss by 2.57–6.36 t·ha−1 year−1, labour input by 114–152 min·ha−1, fuel consumption by 35.9–45.8 l·ha−1, and CO2 emissions by 98.7–125.9 kg·ha−1. Significant favourable changes, as compared with reduced tillage (RT), were also found with respect to the stability index of aggregates of 2.0–10.0 mm diameter, the number and weight of earthworms, as well as bacteria and fungi counts.

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Short-term Conservation Tillage Effects on Corn Silage Yield and Soil Quality in an Irrigated, Arid Agroecosystem

Cited by 31 publications

References 43 publications

Tillage method and glyphosate‐resistant alfalfa termination timing affect soil properties and subsequent corn yield

Tillage method and glyphosate‐resistant alfalfa termination timing affect soil properties and subsequent corn yield

Influence of soil conservation practices on soil moisture and maize crop (Zea mays L.) productivity in Centre Benin

A Strip-Till One-Pass System as a Component of Conservation Agriculture

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