Rangeland application of biochar and rotational grazing interact to influence soil and plant nutrient dynamics

Gao, Si; DeLuca, Thomas H.

doi:10.1016/j.geoderma.2021.115572

Cited by 13 publications

(4 citation statements)

References 58 publications

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“…The CIA+melatonin treatment showed the most significant data regarding the highest increment in the contents of protein, amino acids, flavonoids, fat, and fiber (Figure 2A-E), and nutrient concentrations in leaves (Figure 3A-H). Formerly, BH and MKC addition to Pb-polluted soils improved nutrients and biochemical compounds in spinach and grasses [6,70]. Furthermore, the improvements in nutrition and biochemical compounds of maize [21] and tomato [71] were also reported with foliar application of melatonin.…”

Section: Leaf Dietary Valuementioning

confidence: 83%

Soil Amendments and Foliar Melatonin Reduced Pb Uptake, and Oxidative Stress, and Improved Spinach Quality in Pb-Contaminated Soil

Iqbal

Tanzeem-ul-Haq

Gull-e-Faran

et al. 2023

Plants

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Amending Pb-affected soil with biochar (BH) and magnesium potassium phosphate cement (MKC) reduces Pb uptake in plants. Moreover, foliar applications of melatonin and proline are also known to reduce plant oxidative stress and Pb uptake. However, little is known about combining both techniques, i.e., adding a combo immobilizing dose (CIA = mixture of BH and MKC at 50:50 ratio) in Pb-polluted soil and foliar application of proline and melatonin for reducing Pb uptake and oxidative stress in spinach. Control, proline, melatonin, CIA, CIA+proline, and CIA+melatonin were the treatments utilized in this pot study to see their effects on reducing plant oxidative stress, Pb uptake, and improving spinach quality in Pb-polluted soil. Moreover, Pb bioavailability, enzymatic activities, and numbers of bacteria, fungi, and actinomycetes in the soil were also evaluated. The effect of CIA on reducing Pb in the soil-plant system and improving soil enzymes and microbial numbers was more pronounced than melatonin alone. The most effective treatment was CIA+melatonin reducing Pb availability in soil (77%), shoots (95%), and roots (84%), alleviating oxidative stress, and improving plant biomass (98%) and nutrients. Soil enzymatic activities and the number of microorganisms in the rhizosphere were also highest with CIA+melatonin. Results highlight the significance of CIA+melatonin, as an inexpensive approach, in remediating Pb-polluted soil and improving spinach quality. However, further research is needed to understand the significance of CIA+melatonin on different crops and various soil Pb concentrations before employing this technique commercially in agriculture and environment sectors.

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Section: Leaf Dietary Valuementioning

confidence: 83%

Soil Amendments and Foliar Melatonin Reduced Pb Uptake, and Oxidative Stress, and Improved Spinach Quality in Pb-Contaminated Soil

Iqbal

Tanzeem-ul-Haq

Gull-e-Faran

et al. 2023

Plants

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“…Numerous studies have shown that the presence of biochar can increase soil autotrophic nitrification rate under a variety of mechanisms, for example, the high porosity of biochar providing more oxygenated microsites stimulating the activity of nitrifying microbial community (Liu et al, 2012; Wu et al, 2014); biochar adsorbing organic compounds that would otherwise inhibit nitrification (Ball et al, 2010; DeLuca et al, 2006). Compared to biochar, the additional N from biochar co‐compost might have provided more NH 4 + as a substrate for nitrification; and the higher infiltration rate in soils with biochar co‐compost might have resulted in more oxygenated microsites, further stimulating nitrification and subsequently contributing of a decrease in soil pH (Gao & DeLuca, 2020, 2022).…”

Section: Discussionmentioning

confidence: 99%

Biochar co‐compost improves nitrogen retention and reduces carbon emissions in a winter wheat cropping system

et al. 2023

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Organic amendments, such as compost and biochar, mitigate the environmental burdens associated with wasting organic resources and close nutrient loops by capturing, transforming, and resupplying nutrients to soils. While compost or biochar application to soil can enhance an agroecosystem's capacity to store carbon and produce food, there have been few field studies investigating the agroecological impacts of amending soil with biochar co-compost, produced through the composting of nitrogen-rich organic material, such as manure, with carbon-rich biochar. Here, we examine the impact of biochar co-compost on soil properties and processes by conducting a field study in which we compare the environmental and agronomic impacts associated with the amendment of either dairy manure co-composted with biochar, dairy manure compost, or biochar to soils in a winter wheat cropping system. Organic amendments were applied at equivalent C rates (8 Mg C ha −1 ). We found that all three treatments significantly increased soil water holding capacity and total plant biomass relative to the noamendment control. Soils amended with biochar or biochar co-compost resulted in significantly less greenhouse gas emissions than the compost or control soils. Biochar co-compost also resulted in a significant reduction in nutrient leaching relative to the application of biochar alone or compost alone. Our results suggest that biochar co-composting could optimize organic resource recycling for climate change mitigation and agricultural productivity while minimizing nutrient losses from agroecosystems.

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“…Changes in pH can influence nutrient availability, impacting the form and solubility of nutrients in soil. Alterations in soil pH resulting from biochar applications can indirectly affect nutrient uptake by plants and subsequently impact the quality and quantity of resources available to soil-dwelling insects [58].…”

Section: Biochar's Impact On Soil Nutrient Dynamicsmentioning

confidence: 99%

Influence of Biochar on Soil Insect Dynamics and Infestation

Kumar Bhoi,

Samal,

Kumar Mahanta

et al. 2024

Sustainable Use of Biochar - From Basics to Advances

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Biochar, a carbonaceous material produced through pyrolysis of organic matter, has garnered attention for its potential to enhance soil fertility, structure, and overall health. However, its effects on soil-dwelling insects remain a subject of considerable interest and debate. This chapter critically examines the current state of knowledge regarding the interactions between biochar applications and soil-dwelling insects, encompassing diverse aspects such as alterations in insect community composition, population dynamics, behavioral changes, and potential mitigation of infestations. Through an exploration of empirical studies and theoretical frameworks, it aims to elucidate the intricate relationships between biochar amendments and soil insect ecology.

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Rangeland application of biochar and rotational grazing interact to influence soil and plant nutrient dynamics

Cited by 13 publications

References 58 publications

Soil Amendments and Foliar Melatonin Reduced Pb Uptake, and Oxidative Stress, and Improved Spinach Quality in Pb-Contaminated Soil

Soil Amendments and Foliar Melatonin Reduced Pb Uptake, and Oxidative Stress, and Improved Spinach Quality in Pb-Contaminated Soil

Biochar co‐compost improves nitrogen retention and reduces carbon emissions in a winter wheat cropping system

Influence of Biochar on Soil Insect Dynamics and Infestation

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