Utilization of some organic wastes as growing media for lettuce (<i>Lactuca sativa</i> L.) plants

Gomah, Hala; Ahmed, Mohamed; Abdalla, Reham M.; Farghly, Khaled A.; Eissa, Mamdouh A.

doi:10.1080/01904167.2020.1766077

Cited by 10 publications

(10 citation statements)

References 33 publications

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“…It was revealed that the use of mulching improved the soil quality, soil moisture content, and microbial activities [29]. Improving the quality of the soil enables the plant to absorb its nutrient requirements from the soil and provides better growth and development of roots, which ultimately increases the number of roots [1][2][3][4]29]. The findings of the current study are in agreement with those of Sun [6,8,46].…”

Section: Discussionsupporting

confidence: 86%

“…Agricultural waste has increased dramatically in recent years due to the increase in agricultural production and thus the burden has increased on environmental scientists to devise innovative methods to recycle the agricultural waste [1,2]. Converting the agricultural waste into organic fertilizers is an ideal solution to reduce environmental problems and at the same time increase the soil fertility [3,4].…”

Section: Discussionmentioning

confidence: 99%

“…Organic waste has been increased in recent years due to the increase in agricultural production and thus the environmental concerns have increased [1,2]. Recycling and converting of organic waste to organic fertilizers is an ideal solution to reduce environmental problems and increase soil fertility [3,4].…”

Section: Introductionmentioning

confidence: 99%

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Organic Amendment and Mulching Enhanced the Growth and Fruit Quality of Squash Plants (Cucurbita pepo L.) Grown on Silty Loam Soils

et al. 2021

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Adoption of suitable organic fertilizers and soil mulching are useful tools to enhance soil quality, which will inevitably lead to improved growth and yield of crops. Little is known about the soil organic amendments and Azolla (Azolla pinnata) under soil organic mulching on the growth and yield of squash plant (Cucurbita pepo L.). A comparative study mainly focused on the impacts of organic fertilizer treatments on soil fertility and squash growth under wheat straw mulch was conducted on wooden boxes filled with silty loam soil. Wheat straw, as an organic mulch, and five organic-fertilization treatments were added to the soil. Wheat straw with a size of <2 cm was added to the soil surface with a 2 cm thickness. The fertilization treatments were: control (CO), chemical fertilizer (CF), compost (CT), vermicompost (VC), and dry Azolla (DA). Wheat straw mulch had positive effects on the soil properties, growth, and yield. The maximum fruit yield was obtained from the soil fertilized with DA under wheat straw mulch, while the lowest one was found in the control without mulching. Azolla and organic fertilizers showed a remarkable superiority over the mineral fertilization in increasing the soil fertility as well as the growth and quality of squash fruits; this superiority increased under the wheat straw mulching system. The application of recommended mineral fertilization (CF), compost (CT), vermicompost (VC), and dry Azolla (DA) under wheat straw mulch increased the soil available-N by 2, 20, 12, and 29%, respectively, above the control (CO), while these organic fertilizers without mulching increased the soil available-N by 11, 32, 26, and 48%, respectively. The production of vegetable crops such as squash plants requires the addition of organic fertilizers and mulching to increase yield and quality of fruits.

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Section: Discussionsupporting

confidence: 86%

Section: Discussionmentioning

confidence: 99%

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Organic Amendment and Mulching Enhanced the Growth and Fruit Quality of Squash Plants (Cucurbita pepo L.) Grown on Silty Loam Soils

et al. 2021

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Section: Introductionmentioning

confidence: 99%

“…Shrimp processing and consumption generate vast amounts of waste that is rich in organic matter and nutrients [ 18 ]. This shrimp waste is also considered a pollutant to the environment [ 18 , 19 ]. Shrimp wastes contain 34% crude protein, 29% ash, 14–30% calcium, and 2% phosphorus [ 18 , 20 ].…”

Section: Introductionmentioning

confidence: 99%

Calcium-Rich Biochar Stimulates Salt Resistance in Pearl Millet (Pennisetum glaucum L.) Plants by Improving Soil Quality and Enhancing the Antioxidant Defense

Abo-Elyousr

Mousa

Ibrahim

et al. 2022

Plants

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Shrimp waste is rich in organic compounds and essential plant nutrients, e.g., calcium (Ca), and converting these wastes to organic fertilizer is important for environmental preservation and to achieve sustainable agricultural management. In the current study, Ca-rich biochar was prepared from shrimp wastes (SWB) by pyrolysis at 300 °C. We hypothesized that the Ca-rich biochar will help in solving the problem of plant growth in saline soil by reducing sodium (Na) uptake and mitigating oxidative stress. The current study aimed to investigate the effect of SWB on the quality of saline sandy soil and the mechanism of salt resistance in pearl millet (Pennisetum glaucum L.). Pearl millet plants were planted in saline sandy soil (10 dS m−1) in wooden boxes (1.3 × 0.8 m size and 0.4 m height), and 5 doses (0, 1.0, 1.5, 2.0, and 2.5% (w/w)) of SWB were added. SWB application increased the soil quality and nutrient uptake by pearl millet plants. The highest rate of SWB increased the soil microbial biomass carbon and the activity of dehydrogenase enzyme by 43 and 47% compared to the control soil. SWB application reduced the uptake of sodium (Na+) and chloride (Cl−) and increased the K/Na ratio in the leaf tissues. SWB addition significantly increased the activity of antioxidant enzymes, e.g., ascorbate peroxidase (APX), polyphenol oxidase (PPO), and pyrogallol peroxidases (PPX). The application of 2.5% SWB to the saline soil increased the soluble carbohydrates and proline in plant leaves by 75 and 60%, respectively, and reduced the malondialdehyde (MDA) by 32% compared to the control. SWB enhanced the antioxidant defense and mitigated oxidative stress by improving the synthesis of osmoprotectants, e.g., soluble carbohydrates and proline. Sandy saline soils in arid and semiarid areas suffer greatly from low organic matter contents, which reduces the soil quality and increases the risk of salt during plant growth. The high organic matter and calcium content (30%) in the shrimp waste-derived biochar improved the quality of the saline sandy soil, reduced the uptake of toxic salts, and increased the quality of the forage material. The addition of recycled shrimp waste to saline low-fertility soils improves soil productivity and is safe for soil health.

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Toxicity of the sawdust used for phosphorus recovery in a eutrophic reservoir: experiments with Lactuca sativa and Allium cepa

Pantano

Mazzeo

Rocha

et al. 2021

Environ Sci Pollut Res

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Utilization of some organic wastes as growing media for lettuce (Lactuca sativa L.) plants

Cited by 10 publications

References 33 publications

Organic Amendment and Mulching Enhanced the Growth and Fruit Quality of Squash Plants (Cucurbita pepo L.) Grown on Silty Loam Soils

Organic Amendment and Mulching Enhanced the Growth and Fruit Quality of Squash Plants (Cucurbita pepo L.) Grown on Silty Loam Soils

Calcium-Rich Biochar Stimulates Salt Resistance in Pearl Millet (Pennisetum glaucum L.) Plants by Improving Soil Quality and Enhancing the Antioxidant Defense

Toxicity of the sawdust used for phosphorus recovery in a eutrophic reservoir: experiments with Lactuca sativa and Allium cepa

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