The management of wheat, barley, and oat root systems

Hoad, SP; Russell, G.; Lucas, M. E.; Bingham, I. J.

doi:10.1016/s0065-2113(01)74034-5

Cited by 157 publications

(86 citation statements)

References 159 publications

Supporting

Mentioning

Contrasting

Unclassified

Order By: Relevance

“…Hakansson and Voorhees (1998) and Ralisch and Tavares Filho (2002) reported that smaller development of the aerial plant segments in compacted soils was due to the reduction in the penetration and ramification of roots caused by the mechanical resistance of the soil, and in consequence of the low infiltration and movement of water as well as the availability of nutrients in soil. Moreover, according to Hoad et al (2001), in compacted soils a reduction in the length and an increase in the thickness of the roots occured, thus decreasing the soil/root contact area and therefore, causing a lower resistance in the roots xylem transport when compared to those of thinner roots. Results on the weight of 100 seeds did not differ significantly between the treatments, although they had a linear decrease as the PR increased (Fig.…”

Section: Resultsmentioning

confidence: 99%

“…Nowadays, PR is considered the most indicative attribute of soil compaction in management systems (Busscher et al, 2000;Beutler et al, 2001). This is because it is directly related to plant growth (Letey, 1985) and shows a strong relationship with plant root growth (Hoad et al, 2001). However, it can have values in the order of 2 to 8 times higher than the maximum axial pressure that roots cause (Misra et al, 1986), and it can be influenced by the moisture, texture, and the soil structural condition (Hamblim, 1985;Tardieu, 1994).…”

Section: Introductionmentioning

confidence: 99%

See 1 more Smart Citation

Soil resistance to penetration and least limiting water range for soybean yield in a haplustox from Brazil

Beutler

Centurion

Silva³

2005

Braz. arch. biol. technol.

View full text Add to dashboard Cite

show abstract

Section: Resultsmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

Soil resistance to penetration and least limiting water range for soybean yield in a haplustox from Brazil

Beutler

Centurion

Silva³

2005

Braz. arch. biol. technol.

View full text Add to dashboard Cite

show abstract

“…Due to the excess precipitation received at Winnipeg, the soil in this trial was recharged several times during the growing season and the rainfall supplied the majority of the crop water requirements. Cereal roots will preferentially extract water from the upper soil when available (Hoad et al 2001). Therefore, soil water depletion was not observed in the 90-to 130-cm depth increment at Winnipeg 2000 for any of the treatments because adequate water was present in the upper layers during the growing season.…”

mentioning

confidence: 95%

Soil water depletion by tall and semidwarf oat and wheat cultivars

Gentile¹,

Rocquigny²,

Entz³

2005

Can. J. Plant Sci.

View full text Add to dashboard Cite

Gentile, R. M., de Rocquigny, P. J. and Entz, M. H. 2005. Soil water depletion by tall and semidwarf oat and wheat cultivars. Can. J. Plant Sci. 85: 385-388. Knowledge of soil water use in different crops and among crop cultivars is useful in crop rotation planning. Net seasonal soil water depletion patterns in the 0-to 130-cm soil profile for semidwarf and tall cultivars of oat (Avena sativa L.) and wheat (Triticum aestivum L.) were compared at 3 site-years in Manitoba. Total soil water depletion was greater for oat than wheat (29-31 mm). This trend was consistent across site-years and N regimes. Greater water use for tall versus semidwarf oat was observed at one of three sites.

show abstract

“…O atributo físico adotado como indicativo da compactação do solo tem sido a resistência do solo à penetração (Imhoff et al, 2000;Stone et al, 2002), por apresentar relações diretas com o crescimento das plantas (Hoad et al, 2001) e por ser mais eficiente na identificação de estados de compactação comparada à densidade do solo (Silva, 2003). A resistência do solo à penetração é influenciada pelo conteúdo de água, textura e pela condição estrutural do solo (Tardieu, 1994), fatores que dificultam a obtenção de valores críticos às plantas.…”

Section: Introductionunclassified

Compactação do solo e intervalo hídrico ótimo na produtividade de arroz de sequeiro

Beutler

Centurion

Silva³

et al. 2004

Pesq. agropec. bras.

View full text Add to dashboard Cite

Resumo -O objetivo deste trabalho foi determinar o intervalo hídrico ótimo e sua relação com a produtividade de grãos de arroz de sequeiro em um Latossolo Vermelho de textura média. Os tratamentos foram 0, 1, 2, 4 e 6 passadas de um trator, lado a lado, na superfície do solo, com quatro repetições. O delineamento experimental foi inteiramente casualizado. Foram coletadas amostras indeformadas de solo nas camadas de 0,02-0,05, 0,07-0,10 e 0,15-0,18 m para determinação da resistência do solo à penetração, densidade do solo, intervalo hídrico ótimo, densidade do solo crítica e da curva de retenção de água no solo. Em parcelas de 3,6 m 2 foi semeado arroz de sequeiro (cv. Caiapó) e a sua produtividade foi avaliada em parcelas úteis de 1,80 m 2 . O intervalo hídrico ótimo foi reduzido a partir da densidade do solo de 1,30 Mg m -3 pela resistência do solo à penetração. A partir do valor de 1,82 MPa ocorreu decréscimo da produtividade de arroz. A densidade do solo crítica ao desenvolvimento radicular no intervalo hídrico ótimo foi de 1,63 Mg m -3 , equivalente a 1,62 Mg m -3 que foi limitante na produtividade de arroz. O monitoramento da compactação do solo é necessário para prevenir perdas na produtividade de arroz de sequeiro.Termos para indexação: Oryza sativa, resistência do solo à penetração, água no solo, qualidade física do solo. Soil compaction and least limiting water range in dryland rice yieldAbstract -The objective of this work was to determine the least limiting water range and its relation with dryland rice yield in a medium texture Oxisol. The treatments were 0, 1, 2, 4 and 6 passed of a tractor, side by side, on soil surface. The experimental design was a completely randomized, with four repetitions. Indeformed soil samples were collected in the layers 0.02-0.05, 0.07-0.10 and 0.15-0.18 m for determination of soil resistance to penetration, bulk density, least limiting water range, critical bulk density and soil water retention curve. In 3.6 m 2 plots dryland rice (cv. Caiapó) was sown and its yield in useful parcels of 1.80 m 2 was evaluated. The least limiting water range was reduced from bulk density of 1.30 Mg m -3 by soil resistance to penetration. From 1.82 MPa on decrease of rice yield occurred. Critical bulk density to root development in the least limiting water range was 1.63 Mg m -3 , equivalent to 1.62 Mg m -3 of bulk density, that is critical to rice yield. The monitoring of soil compaction is necessary to prevent losses in dryland rice yield.

show abstract

The management of wheat, barley, and oat root systems

Cited by 157 publications

References 159 publications

Soil resistance to penetration and least limiting water range for soybean yield in a haplustox from Brazil

Soil resistance to penetration and least limiting water range for soybean yield in a haplustox from Brazil

Soil water depletion by tall and semidwarf oat and wheat cultivars

Compactação do solo e intervalo hídrico ótimo na produtividade de arroz de sequeiro

Contact Info

Product

Resources

About