Improved legume tree fallows and tillage effects on structural stability and infiltration rates of a kaolinitic sandy soil from central Zimbabwe

Nyamadzawo, George; Chikowo, Régis; Nyamugafata, P.; Giller, Ken E.

doi:10.1016/j.still.2007.06.008

Cited by 37 publications

(30 citation statements)

References 44 publications

(55 reference statements)

Supporting

Mentioning

Contrasting

Unclassified

Order By: Relevance

“…Nevertheless, in this treatment, there was a sharper reduction in the infiltration rate in the first 20 min after the beginning of surface runoff, just as verified by Nyamadzawo et al (2007) and Silva (2007). This is due to soil mobilization promoted by CT operations which intensify the rupture of the aggregates by mechanical action.…”

Section: Kinetic Energy Of the Rain And The Water Infiltration Rate Imentioning

confidence: 56%

Water infiltration in an ultisol after cultivation of common bean

Santos

Panachuki

Sobrinho

et al. 2014

Rev. Bras. Ciênc. Solo

View full text Add to dashboard Cite

SUMMARYWater infiltration in the soil is an important hydrological process that occurs at the interface of the soil-atmosphere system; thus, the soil management practice used has a strong influence on this process. The aim of this study was to evaluate water infiltration in the soil and compare equations for estimating the water infiltration rate in an Ultisol after harvesting common bean (Phaseolus vulgaris L.) under simulated rainfall. Field tests with a rainfall simulator were carried out in three soil management systems: minimum tillage (MT), conventional tillage (CT), and no tillage (NT). In NT, four levels of plant residue on the soil surface were evaluated: 0, 3, 6, and 9 t ha -1 . The models of Kostiakov-Lewis, Horton, and Philip were used to estimate the infiltration rate. In the MT system, the final infiltration rate was 54 mm h -1 , whereas in the CT and NT systems with up to 3 t ha -1 of plant residue on the soil surface, the rate was near 17 mm h -1 . In addition, the results indicated that in the NT system the infiltration rate increased with plant residue coverage greater than 6 t ha -1 , i.e., there was a positive correlation between plant cover and the water infiltration rate. The Horton model was the most suitable in representing the water infiltration process in the soil. Therefore, this model can be recommended for estimation of this variable regardless of the soil tillage system used.

show abstract

Section: Kinetic Energy Of the Rain And The Water Infiltration Rate Imentioning

confidence: 56%

Water infiltration in an ultisol after cultivation of common bean

Santos

Panachuki

Sobrinho

et al. 2014

Rev. Bras. Ciênc. Solo

View full text Add to dashboard Cite

show abstract

“…Adverse effects of continuous cropping systems, involving conventional tillage, on soil organic carbon dynamics and crop productivity are widely recognised (Chuma 1993;Lal 2002;Nyamadzawo et al 2007). Soil organic carbon (SOC) is closely linked to soil structural stability, soil fertility and hydraulic properties, and hence crop productivity (Lal 2002).…”

Section: Introductionmentioning

confidence: 99%

“…Substantial literature is available on tillage effects on soil properties and crop productivity (e.g. Díaz-Zorita et al 2004;Chivenge et al 2007;Nyamadzawo et al 2007). In Zimbabwe, studies have focused on conservation tillage in smallholder maize-based cropping systems, where low and erratic rainfall is the major constraint to rainfed crop production.…”

Section: Introductionmentioning

confidence: 99%

“…An exception is a study that investigated tillage systems under an improved fallow system conducted on a sandy soil in Domboshawa, Zimbabwe (rainfall: 800-1000 mm year -1 ). The study showed that conventional tillage (CT) had lower soil organic carbon and poor aggregate stability than the no-till (NT) and clean ripping (Chivenge et al 2007;Nyamadzawo et al 2007). Aggregate stability is a soil quality indicator directly related to soil organic matter.…”

Section: Introductionmentioning

confidence: 99%

“…It enables aggregates to withstand rapid wetting and mechanical forces due to tillage implements and vehicular traffic (Hernanz et al 2002). Numerous studies have demonstrated a positive correlation between SOC and structural stability (Chuma 1993;Hernanz et al 2002;Nyamadzawo et al 2007). For example, Nyamadzawo et al (2007) reported significant (P \ 0.05) linear correlation (r 2 = 0.73) between SOC and mean weighted diameter of aggregates and percent water-stable aggregates.…”

Section: Introductionmentioning

confidence: 99%

See 2 more Smart Citations

Effects of tillage systems on soil organic carbon dynamics, structural stability and crop yields in irrigated wheat (Triticum aestivum L.)–cotton (Gossypium hirsutum L.) rotation in semi-arid Zimbabwe

Gwenzi¹,

Gotosa

Chakanetsa³

et al. 2008

Nutr Cycl Agroecosyst

View full text Add to dashboard Cite

Rainwater harvesting and Leucaena leucocephala biomass rates effects on soil moisture, water use efficiency and Sorghum bicolor [(L.) Moench] productivity in a semi‐arid area in Zimbabwe

2022

View full text Add to dashboard Cite

BACKGROUND: Sorghum is one of the major staple crops in Sub Saharan Africa but its production is mainly limited by moisture stress, frequent droughts and soil infertility, especially in the smallholder farming systems. This raises the need to develop climate smart options to improve sorghum production. The objective was to assess the effects of rainwater harvesting and use of different Leucaena leucocephala biomass rates on soil moisture content, rainwater use efficiency, and stover and grain yields in two sorghum varieties (Macia and SV1). The experiment was laid as a randomized complete block design in split-split plot arrangement from 2017/2018 to 2019/2020 season. RESULTS:The results show that tied contour (TC) and infiltration pits (IPs) significantly (P < 0.05) increased soil moisture content than standard contour (SC). Soil moisture content increased gradually with the increase in soil depth (20-40 cm > 0-20 cm), with 2018/2019 season having the maximum soil moisture content. Soil moisture content also increased with the increase in application rates of Leucaena biomass. Grain and stover yields were significantly (P < 0.05) increased by all Leucaena biomass application rates with higher yield observed in 2018/2019 season. SC had significantly lower grain and stover yields at all Leucaena biomass application rates. TC and IPs had comparable rainwater use efficiency compared to SC. Rainwater use efficiency increased with application rates of Leucaena biomass across all seasons and varieties. CONCLUSION: TC and IPs are better adaptive mechanisms against drought spells in semi-arid areas and can be combined with 10 t ha −1 of Leucaena biomass due to better yield increments realized.

show abstract

Improved legume tree fallows and tillage effects on structural stability and infiltration rates of a kaolinitic sandy soil from central Zimbabwe

Cited by 37 publications

References 44 publications

Water infiltration in an ultisol after cultivation of common bean

Water infiltration in an ultisol after cultivation of common bean

Effects of tillage systems on soil organic carbon dynamics, structural stability and crop yields in irrigated wheat (Triticum aestivum L.)–cotton (Gossypium hirsutum L.) rotation in semi-arid Zimbabwe

Rainwater harvesting and Leucaena leucocephala biomass rates effects on soil moisture, water use efficiency and Sorghum bicolor [(L.) Moench] productivity in a semi‐arid area in Zimbabwe

Contact Info

Product

Resources

About