Organic amendments decrease bulk density and improve tree establishment and growth in roadside plantings

McGrath, Darby; Henry, Jason

doi:10.1016/j.ufug.2016.08.015

Cited by 27 publications

(18 citation statements)

References 32 publications

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“…roughout this study, several unfavourable soil conditions were observed in soils under NPK fertilization but the conditions closely related to chlorophyll content in leaves besides soil total N were bulk density and porosity. is was in agreement with McGrath and Henry [40] who reported that soils with high bulk densities and low porosities tend to restrict root growth to search for water resulting in moisture stress and thus decreased leaf chlorophyll content and NDVI. Huerta-Pujol et al [41] examined the consequences of drought stress due to hard and less permeable soils on the composition of mesophyll and bundle sheath chlorophylls of plants.…”

Section: Pepper Physiological Characteristicsupporting

confidence: 92%

“…Huerta-Pujol et al [41] went on to explain that the reasons for this preferential loss could be attributed to the fact that the mesophyll cells are farther removed from the vascular supply of water than the bundle sheath cells and hence develop greater cellular water deficits which lead to a greater loss of chlorophyll. McGrath and Henry [40] also mentioned that softer and porous soils enable plant roots to explore and penetrate further into the ground to obtain moisture. Because of this, plants could perform considerably better in growth and chlorophyll production even under limited N condition provided partitioning of N within the plant and efficient utilization of N at the cellular level [2,42].…”

Section: Pepper Physiological Characteristicmentioning

confidence: 99%

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Effects of Organic Soil Amendments on Photosynthetic Traits of Black Pepper (Piper nigrum L.) in an Alluvial Soil

Sulok

Ahmed

Khew

et al. 2020

Applied and Environmental Soil Science

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Black pepper in Sarawak, Malaysia, is mainly cultivated using the conventional method involving heavy usage of chemical compound fertilizers. Organic soil amendments can reduce the required amounts of chemical fertilizers. So, the objectives of this study were to compare selected properties of soils as well as the physiological performances of mature vines following the application of fermented juices, biochar, and compost. There were five treatments; each replicated five times in a randomized complete block design. Treatments were as follows: (i) FNPK–NPK 15 : 15 : 15 compound fertilizer; (ii) FPJ (fermented plant juice); (iii) FPJBC (FPJ, biochar, and compost); (iv) FFJ (fermented fruit juice); and (v) FFJBC (FFJ, biochar, and compost). The results revealed that combined fermented juices, biochar, and compost positively improved soil bulk density, soil porosity, TOC, C/N ratio, available P, exchangeable K, and exchangeable Ca. The fermented juices incorporated with biochar and compost had favourable effects on the leaf chlorophyll concentration, Normalized Difference Vegetation Index (NDVI), and gas exchange rates such as photosynthesis, stomatal conductance, and transpiration. Pepper leaf chlorophyll, NDVI, and photosynthesis rate were negatively correlated with soil total N. These results suggested that introducing organic soil amendments such as fermented juices, biochar, and compost improved soil physiochemical properties and black pepper physiological traits.

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Section: Pepper Physiological Characteristicsupporting

confidence: 92%

Section: Pepper Physiological Characteristicmentioning

confidence: 99%

Effects of Organic Soil Amendments on Photosynthetic Traits of Black Pepper (Piper nigrum L.) in an Alluvial Soil

Sulok

Ahmed

Khew

et al. 2020

Applied and Environmental Soil Science

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“…Soil compaction is thought to be a substantial reason for tree mortality in cities. Due to the physical difficulties of root development and poor capillary movement in such formations, water absorption is reduced, which significantly disturbs assimilation processes and mineral uptake [18]. The reduction in soil porosity results in poor water and air permeability, lowered colonization by microorganisms, and a reduction in carbon absorption capacity [19,20].…”

Section: Soil Compactionmentioning

confidence: 99%

The Complex Issue of Urban Trees—Stress Factor Accumulation and Ecological Service Possibilities

Czaja

Kołton

Muras

2020

Forests

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This review paper is the first that summarizes many aspects of the ecological role of trees in urban landscapes while considering their growth conditions. Research Highlights are: (i) Plant growth conditions in cities are worsening due to high urbanization rates and new stress factors; (ii) Urban trees are capable of alleviating the stress factors they are exposed to; (iii) The size and vitality of trees is related to the ecological services they can provide. Our review shows, in a clear way, that the phenomenon of human-related environmental degradation, which generates urban tree stress, can be effectively alleviated by the presence of trees. The first section reviews concerns related to urban environment degradation and its influence on trees. Intense urbanization affects the environment of plants, raising the mortality rate of urban trees. The second part deals with the dieback of city trees, its causes and scale. The average life expectancy of urban trees is relatively low and depends on factors such as the specific location, proper care and community involvement, among others. The third part concerns the ecological and economic advantages of trees in the city structure. Trees affect citizen safety and health, but also improve the soil and air environment. Finally, we present the drawbacks of tree planting and discuss if they are caused by the tree itself or rather by improper tree management. We collect the latest reports on the complicated state of urban trees, presenting new insights on the complex issue of trees situated in cities, struggling with stress factors. These stressors have evolved over the decades and emphasize the importance of tree presence in the city structure.

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“…Mousavi et al (2012) reported that the addition of organic material (rice straw) to sandy loam could reduce the soil bulk density. There is a strong relationship between the bulk density and the content of organic matter, in which it has a strong effect on decreasing the bulk density of the soil (McGrath and Henry, 2016). Adding CW compost led the density of sandy loam soils decreased.…”

Section: Bulk Density Of Soilmentioning

confidence: 99%

Role of cajuput waste compost against the physical quality of sandy soil

Mashudi

Kusuma

Soemarno

et al. 2019

J.Degrade.Min.Land Manage.

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Composting is an alternative way to accelerate decomposition and maturation of residual waste from refining leaves of cajuput to be suitably applied to the soil. The application of Cajuput Waste Compost (CW Compost) is intended to increase the productivity of sandy soil in Indonesian dryland. Compost serves as a soil conditioner that can improve the physical, chemical and biological properties. The study aimed to determine and analyze the role of CW compost in improving the physical quality of sandy soil in two incubation periods. The study used experimental methods, through soil incubation that given CW compost, in a greenhouse with two incubation periods. The experiments used a completely randomized design with 4 levels of CW compost treatment, namely: 0 t/ha (P0), 10 t/ha (P1), 20 t/ha (P2), 30 t/ha (P3). The results showed CW compost had a significant role in improving the physical quality of sandy soil both at 1-month and 4-month incubations. The soil physical quality increased by increasing compost levels and incubation periods, except for the total available water variable which decreased after 4-month incubation. The decrease was allegedly due to the reduction of labile fraction in the soil.

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Organic amendments decrease bulk density and improve tree establishment and growth in roadside plantings

Cited by 27 publications

References 32 publications

Effects of Organic Soil Amendments on Photosynthetic Traits of Black Pepper (Piper nigrum L.) in an Alluvial Soil

Effects of Organic Soil Amendments on Photosynthetic Traits of Black Pepper (Piper nigrum L.) in an Alluvial Soil

The Complex Issue of Urban Trees—Stress Factor Accumulation and Ecological Service Possibilities

Role of cajuput waste compost against the physical quality of sandy soil

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