Soybean root growth and yield in rotation with cover crops under chiseling and no-till

Calonego, Juliano Carlos; Rosolem, Ciro Antônio

doi:10.1016/j.eja.2010.06.002

Cited by 126 publications

(91 citation statements)

References 20 publications

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“…However, effects of crop rotation on soil quality, increasing soybean yield, can only be observed in the medium and long term, as stated by Calonego & Rosolem (2010). These results were obtained without considering the fall-winter crop, because S values were greater in treatments including the spring crops (Figure 5a), and the S value was highest (S = 0.08) in triticale plus pearl millet.…”

Section: Resultssupporting

confidence: 58%

“…These results were obtained without considering the fall-winter crop, because S values were greater in treatments including the spring crops (Figure 5a), and the S value was highest (S = 0.08) in triticale plus pearl millet. Interestingly, greatest root growth (pearl millet and soybean) was observed in this soil layer, as discussed by Calonego & Rosolem (2010). Further comparisons of WRC showed that in the first and third year, soil moisture at saturation was increased by cover crops in the 0.075-0.125 m layer (Figure 4b).…”

Section: Resultsmentioning

confidence: 77%

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Soil water retention and s index after crop rotation and chiseling

Calonego

Rosolem

2011

Rev. Bras. Ciênc. Solo

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Section: Resultssupporting

confidence: 58%

Section: Resultsmentioning

confidence: 77%

Soil water retention and s index after crop rotation and chiseling

Calonego

Rosolem

2011

Rev. Bras. Ciênc. Solo

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“…This is supported by the results presented in figure 6a in the triticale+chiseling treatment, where the percentage of samples with Db < Db c in the 0-20 cm layer, decreased from 88 to 56 % between the first and third year of the experiment. These results explain the decrease in soybean yield with this mechanical management, compared with plots under crop rotation (Calonego & Rosolem, 2010). In contrast, in the 20-40 cm layer, although the Db c values increased in most treatments with cover crops, the values still remained lower than in chiseled plots (Figure 5b).…”

Section: Resultsmentioning

confidence: 49%

Least limiting water range in soil under crop rotations and chiseling

Calonego

Rosolem

2011

Rev. Bras. Ciênc. Solo

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SUMMARYSoil water availability to plants is affected by soil compaction and other variables. The Least Limiting Water Range (LLWR) comprises soil physical variables affecting root growth and soil water availability, and can be managed by either mechanical or biological methods. There is evidence that effects of crop rotations could last longer than chiseling, so the objective of this study was to assess the effect of soil chiseling or growing cover crops under no-till (NT) on the LLWR. Crop rotations involving triticale (X Triticosecale) and sunflower (Helianthus annuus) in the fall-winter associated with millet (Pennisetum glaucum), sorghum (Sorghum bicolor) and sunn hemp (Crotalaria juncea) as cover crops preceding soybean (Glycine max) were repeated for three consecutive years. In the treatment with chiseling (performed only in the first year), the area was left fallow between the fall-winter and summer crops. RESUMO: INTERVALO HÍDRICO ÓTIMO EM SOLO SOB ROTAÇÃO DE CULTURAS E ESCARIFICAÇÃO

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“…Alleto and Coquet (2009) also found that changes in Db could be detected for less than five months after sowing, but in general, there are very few published studies that thoroughly describe temporal effects of furrow openers on soil physical condition. In contrast, other studies have shown that temporal changes in Db can be detected for six months to one year (Calonego and Rosolem, 2010;Leão et al, 2014) after chiseling previous NT sites.…”

Section: Bulk Densitymentioning

confidence: 61%