Effect of deep tillage and controlled traffic on root growth, water-use efficiency and yield of irrigated maize and wheat

Bennie, A. T.P.; Botha, F.J.P.

doi:10.1016/0167-1987(86)90010-3

Cited by 102 publications

(47 citation statements)

References 8 publications

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“…Increased elongation of seminal root axes in loosened soil is in general agreement with the findings of Bennie & Botha (1986) on wheat and maize and Whiteley & Dexter (1982) on wheat. Soil compaction consistently inhibits the elongation of seminal root axes.…”

Section: Whole Root Systemssupporting

confidence: 80%

“…In general, however, total root weight is smaller in compacted than loosened soils (Taylor & Burnett, 1964) although the redistribution of the root mass into surface layers of the soil is probably a more distinctive feature of root systems growing in compact soil layers (e.g. Bennie & Botha, 1986). The effect of soil strength on root weight is probably governed by several factors including shoot activity (Masle & Farquhar, 1988), the diameter of lateral roots (Goss, 1977) and soil…”

Section: Whole Root Systemsmentioning

confidence: 99%

“…Soils in the field are often compacted only in a discrete layer 10-25 cm below the surface and once this layer is disturbed, roots can penetrate freely into the subsoil (Taylor & Burnett, 1964;Bennie & Botha, 1986). However, in laboratory experiments it has been shown that root mass is not as strongly affected by mechanical impedance as root length (Scott Russell & Goss, 1974).…”

Section: Introductionmentioning

confidence: 99%

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The effect of soil compaction on wheat during early tillering

Atwell

1990

New Phytologist

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SUMMARYWheat {Triticum aestivum L. cv. Eradu) was grown in the field on a deep loamy sand which had either a compact soil layer (compact soil) between 10 and 55 cm depth or a deep-tilled profile (loosened soil). Between 33 and 62 d after sowing, shoots grew more slowly and had fewer tillers on the compact soil. Nitrogen and K (but not P) concentrations were 12-14 "o lower in shoots grown on the compact soil, suggesting that nutrient deficiencies might have contributed to impaired shoot growth.Seminal root axes elongated at 0-60 and 1-78 cm d^^ in compact and loosened soil, respectively. At 47 d after sowing, roots in compact soil were short, thick and contorted; cortical cells expanded radially in response to high soil strength but were 66 "o shorter, causing cortical cell volumes to be smaller than in roots from loosened soil. The diameter of the stele was not affected by soil compaction. In addition the zone of elongation was much nearer the apex and shorter in roots from compact soil. Overall, seminal roots in compact soil grew slowly and explored the soil profile inefficiently.

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Section: Whole Root Systemssupporting

confidence: 80%

Section: Whole Root Systemsmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

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The effect of soil compaction on wheat during early tillering

Atwell

1990

New Phytologist

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“…Soil loosening by means of deep-tillage systems improves water infiltration, internal drainage, and aeration in the soil; increases root depth, intensity, and development; and allows for deeper fertilizer placement (Mathers et al 1971;Bennie and Botha 1986;Diaz-Zorita 2000;Strudley, Green, and Ascough 2008).…”

Section: Introductionmentioning

confidence: 99%

Tillage Depth Effects on Soil Physical Properties, Sugarbeet Yield, and Sugarbeet Quality

Jabro

Stevens

Iversen

et al. 2010

Communications in Soil Science and Plant Analysis

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“…In a study done in Ghana there was no significance in difference for mean height between different tillage treatments, even though the shorted plant was found in the no tillage treatment [25]. The great plant height under conventional tillage may be attributed to better soil aeration and more uniform distribution of nutrients in soil profile [26]. Conventional tillage produced the highest total dry matter at 16.2 tons/ha, while PLB produced the least dry matter at 12.6 tons/ha ( Table 5).…”

Section: Treatmentmentioning

confidence: 99%