Influence of soil organic carbon, fertiliser management, and weeding regime on weed dynamics and maize productivity on sandy soils in eastern Zimbabwe

Chipomho, Justin; Parwada, Cosmas; Rugare, Joyful Tatenda; Mabasa, Stanford; Chikowo, Régis; Mashingaidze, A. B.

doi:10.1080/02571862.2020.1845831

Cited by 5 publications

(2 citation statements)

References 39 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…Due to the increase in the duration of vegetation restoration, the growth of vegetation tends to stabilize the community and greatly improves soil fertility. Especially in the sandy soil area, there was much room for an increase in SOC, and the potential for soil carbon fixation was high [28]. This study also pointed out that the growth rate of SOC was the highest in the aeolian sandy soil area in the north of Aohan County after 30 years of vegetation restoration.…”

Section: Spatial Distribution Characteristics Of Socmentioning

confidence: 51%

Temporal and Spatial Changes in Soil Organic Carbon in a Semi-Arid Area of Aohan County, Chifeng City, China

Li,

Dong,

Sheng

et al. 2023

Water

View full text Add to dashboard Cite

Soil organic carbon (SOC) plays a crucial role in arid zones, while land-use change could lead to changes in the balance of SOC. Therefore, the aim of this study was to determine the impact of land-use change on the temporal and spatial variability in SOC at the county scale. A semi-arid zone (Aohan County, Northeast China) covering a surface of 3800 km2 was selected for this study. SOC data for 65 and 182 soil samples from 1985 and 2021, respectively, were collected for major land-use types (forestland, farmland, grassland, and sandy land) across Aohan County to a depth of 20 cm. The impacts of different land-use types and land-use changes on SOC were evaluated. The results showed that land-use change enhanced the spatial variability in SOC over the last 36 years. The mean SOC in 2021 (7.49 g kg−1) was significantly higher than that in 1985 (6.91 g kg−1). Converting sandy land into grassland and farmland into forest or grassland would lead to significant accumulation of SOC, while the depletion of SOC occurred after grassland afforestation. The balance between aboveground biomass inputs and SOC decomposition was the determining reason that affected the accumulation of SOC. Vegetation restoration due to land-use change could alter both soil texture and the C/N ratio and could have positive effects on ecosystem recovery.

show abstract

Section: Spatial Distribution Characteristics Of Socmentioning

confidence: 51%

Temporal and Spatial Changes in Soil Organic Carbon in a Semi-Arid Area of Aohan County, Chifeng City, China

Li,

Dong,

Sheng

et al. 2023

Water

View full text Add to dashboard Cite

show abstract

“…Otherwise, livestock manure is known to change physical (aggregation, aeration, infiltration, and water retention capacity) and chemical properties (cation exchange capacity, amelioration of soil pH) of the soil (Wortman et al, 2010;Kone et al, 2013). This has been found to benefit crops and also unintentionally benefits weeds (Chipomho et al, 2018). Furthermore, cattle manure is known to carry enormous numbers of germinable weed seeds (Materechera & Modiakgotla, 2006) and this is associated with high density and biomass in field crops, especially when the soil has not been cured or incubated for less than five months.…”

Section: Biomass Of Emerged Weedsmentioning

confidence: 99%

Effect of soil nutrient management on soil weed seed bank dynamics across a soil fertility gradient in smallholder farms, Eastern Zimbabwe

Chipomho,

Parwada,

Mapope

et al. 2024

Research in Agricultural Sciences

View full text Add to dashboard Cite

Weed seed banks are latent biotic stress contributors to low crop production among smallholder farms. The objective of this study was to investigate effect of repeated soil nutrient amendments on weed seed bank dynamics in eastern Zimbabwe. Soil samples were taken from three farms with low, medium and high soil organic carbon (SOC) along the catena. Sampled treatments included varying combinations of compound D (7%N, 14%P, 7% K) fertiliser, cattle manure and lime. Weeds that emerged per plot were counted by species and data was tested for normality before running a linear mixed-effects model and Restricted Maximum Likelihood. Principal Component Analysis (PCA) was performed to establish the relationship between seasons, SOC, soil nutrient amendment, and emerged weeds. Significant (p < .05) species richness (Margalef index), and Shannon Weiner index were recorded in the medium (6.4g kg-1soil), high (8 g kg-1 soil) and low (< 3.9 g kg-1soil) SOC. Weed species emergence was significantly (p < .05) influenced by the level of SOC along the catena positions, representing results from the source. Emergency and abundance of weeds such as Richardia scabra, was associated with low SOC acidic sandy soils from the upper catena. However, application of nutrients (NPK+lime treatment) reduced weed species counts from 1.96±0.12 to 1.4±0.12. Cattle manure and NPK+CM treatments recorded significantly higher weed emergence, and weed biomass; compared to the control. Clearly, cattle manure treatments significantly increase the soil weed seed bank; thus, weeding intensity is likely to increase in cattle manure treated fields.

show abstract

Prospects and limitations of soil amendment and irrigation techniques for the water-saving public urban greenery and ephemeral weed management in the sandy soils of the United Arab Emirates

Alam,

Gabriel-Neumann

2024

J. Arid Land

View full text Add to dashboard Cite

Influence of soil organic carbon, fertiliser management, and weeding regime on weed dynamics and maize productivity on sandy soils in eastern Zimbabwe

Cited by 5 publications

References 39 publications

Temporal and Spatial Changes in Soil Organic Carbon in a Semi-Arid Area of Aohan County, Chifeng City, China

Temporal and Spatial Changes in Soil Organic Carbon in a Semi-Arid Area of Aohan County, Chifeng City, China

Effect of soil nutrient management on soil weed seed bank dynamics across a soil fertility gradient in smallholder farms, Eastern Zimbabwe

Prospects and limitations of soil amendment and irrigation techniques for the water-saving public urban greenery and ephemeral weed management in the sandy soils of the United Arab Emirates

Contact Info

Product

Resources

About