Chiseling and gypsum application affecting soil physical attributes, root growth and soybean yield

Santos, Esmael Lopes dos; Debiasi, Henrique; Franchini, J. C.; Vieira, M. J.; Balbinot, Alvadi Antônio

doi:10.5935/1806-6690.20190063

Cited by 3 publications

(2 citation statements)

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“…In the 2017/2018 crop season, which presented water deficit, BDr up to 0.92 resulted in higher soybean grain yield, which was more related to amount of black oat residues on the soil surface than to soil compaction. SANTOS et al (2019) found in clayey Oxisol under NT for 15 years that chiseling and descompaction did not increase soybean grain yield in years with good rain distribution.…”

Section: Resultsmentioning

confidence: 87%

Soil compaction and cover with black oat on soybean grain yield in lowland under no-tillage system

et al. 2021

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Brazil is the largest exporter and second largest producer of soybean grains. Most of this production is from plants grown under no-tillage system (NT). This research evaluated the effect of soil compaction, and different amounts of black oat residues on the soil surface on soybean growth and grain yield in lowland under NT. The experiment was conducted in a completely randomized design with seven treatments and four replications, in the 2016/2017 and 2017/2018 crop seasons. The treatments consisted of: 1) winter fallow without soil compaction (WF); 2) winter fallow with soil compaction (WF-C); 3) black oats and complete removal of surface residues, with soil compaction (0R-C); 4) black oats and removal half of surface residues, with soil compaction (0.5R-C); 5) black oats without surface residue removal, with soil compaction (1R-C); 6) black oats without surface residue removal, plus the residues from treatment 3, with soil compaction (2R-C); 7) black oats without surface residue removal, without soil compaction (1R). When the soybean plants were at the phenological stage R2, they were evaluated nodule, root and shoot dry matter, nitrogen contents, plant height, and grain yield. The soil physical properties were evaluated in the 0.0-0.05, 0.10-0.15 and 0.20-0.25 m layers. The soybean aerial dry matter is > 38% in non-compacted soil in year with soil water excess, regardless of the amount of surface oat straw. In year with small water deficit, soil with more surface oat straw produced > 5% shoot dry matter and > 4% of soybean grain, regardless of compaction. The plant growth and grain yield soybean in lowland varied according to the water conditions, and were affected by soil compaction and amounts of black oats residues on soil surface.

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Section: Resultsmentioning

confidence: 87%

Soil compaction and cover with black oat on soybean grain yield in lowland under no-tillage system

et al. 2021

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“…Some studies have shown contrasting results of root development given the soil chemical conditions. Greater root development in the subsurface can be observed with gypsum use without effects on yield [44], as well as stimuli caused by the presence of H + in root growth in acidic soils where Al undergoes complexation by organic acids [45].…”

Section: Root System Characteristicsmentioning

confidence: 99%

Soybean Agronomic Performance Does Not Change with Gypsum Application in a Cambisol Submitted to Water Restriction in Southern Brazil

Brignoli

Gatiboni²,

Mumbach³

et al. 2021

OJAR

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Water stress is a limiting factor for soybean crop development, and it may increase due to subsurface soil acidity. The use of agricultural gypsum is a way to improve the soil chemical conditions at depth and mitigate the undesirable effects caused by water restriction during drought periods. This study aimed to evaluate whether gypsum application increases soybean yield in water restriction conditions. The experiment was implemented in 2018 in a Humic Cambisol, Southern Brazil. The treatments consisted of two gypsum management procedures (with 1.4 Mg ha -1 and without application) associated with two water conditions (with and without water restriction). The water conditions were promoted by partially covering the soil with plastic tarpaulin sheets. Soybean was grown in the crop years 2018/19 and 2019/20 to assess root attributes and yield and were analyzed soil chemical characteristics. Water restriction reduced soybean yield by 11.4 and 36.8% in the 2018/19 and 2019/20 harvests, respectively, whereas there was no response to gypsum application. The plants' root system was not affected by the water conditions or gypsum management. It was concluded that water restriction reduces soybean yield, and agricultural gypsum does not mitigate such loss under the evaluated conditions, even though it positively changes some soil chemical parameters.

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Residual effects of phosphogypsum rates and machinery traffic on soil attributes and common-bean (Phaseolus vulgaris) yield in a no-tillage system

Michalovicz

Tormena

Müller

et al. 2021

Soil and Tillage Research

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Chiseling and gypsum application affecting soil physical attributes, root growth and soybean yield

Cited by 3 publications

References 0 publications

Soil compaction and cover with black oat on soybean grain yield in lowland under no-tillage system

Soil compaction and cover with black oat on soybean grain yield in lowland under no-tillage system

Soybean Agronomic Performance Does Not Change with Gypsum Application in a Cambisol Submitted to Water Restriction in Southern Brazil

Residual effects of phosphogypsum rates and machinery traffic on soil attributes and common-bean (Phaseolus vulgaris) yield in a no-tillage system

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