Biochar Effects on Mineral Nitrogen Leaching, Moisture Content, and Evapotranspiration after 15N Urea Fertilization for Vegetable Crop

Ahmed, Rasheed; Mao, Lili; Xu, Chunying; Lin, Wei; Ahmed, Shakeel; Ahmed, Waseem

doi:10.3390/agronomy9060331

Cited by 26 publications

(8 citation statements)

References 61 publications

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“…However, it could be shown that the addition of Bc (biochar) to the soil substrate led to a significant increase in the biomass production of M. ciliaris in both water regimes (see also Sensitivity index in Table 1). Similar Bc effects were reported for rice and maize grain yields (increase of 12.1% and 28% respectively) [71][72][73].…”

Section: Adjustment Of Growth and Water Relationssupporting

confidence: 84%

Impact of Biochar Application at Water Shortage on Biochemical and Physiological Processes in Medicago ciliaris

Gharred

Derbali

et al. 2022

Plants

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The application of biochar is mostly used to improve soil fertility, water retention capacity and nutrient uptake. The present study was conducted in order to study the impact of biochar at water deficiency conditions on the physiological and biochemical processes of Medicago ciliaris seedlings. Seedlings were cultivated under greenhouse conditions in pots filled with a mixture of soil and sand mixed in the presence or absence of 2% biochar. Plants of uniform size were subjected after a pretreatment phase (72 days) either to low (36% water holding capacity, water potential low) or high soil water potential (60% water holding capacity, water potential high). Pots were weighed every day to control and maintain a stable water holding capacity. In Medicago ciliaris, drought led to a significant reduction in plant growth and an increase in the root/shoot ratio. The growth response was accompanied by a decreased stomatal conductance and a reduction of the net CO2 assimilation rate and water use efficiency. The associated higher risk of ROS production was indicated by a high level of lipid peroxidation, high antioxidant activities and high proline accumulation. Soil amendment with biochar enhanced the growth significantly and supported the photosynthetic apparatus of Medicago ciliaris species by boosting chlorophyll content and Anet both under well and insufficient watered plants and water use efficiency in case of water shortage. This increase of water use efficiency was correlated with the biochar-mediated decrease of the MDA and proline contents in the leaves buffering the impact of drought on photosynthetic apparatus by increasing the activity of enzymatic antioxidants SOD, APX, GPOX and GR and non-enzymatic antioxidants, such as AsA and DHAsA, giving the overall picture of a moderate stress response. These results confirmed the hypothesis that biochar application significantly reduces both the degree of stress and the negative impact of oxidative stress on Medicago ciliaris plants. These results implied that this species could be suitable as a cash pasture plant in the development of agriculture on dry wasteland in a future world of water shortages.

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Section: Adjustment Of Growth and Water Relationssupporting

confidence: 84%

Impact of Biochar Application at Water Shortage on Biochemical and Physiological Processes in Medicago ciliaris

Gharred

Derbali

et al. 2022

Plants

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“…Our study showed that the NH 4 + -N contents of tillage soil increased with the increase in BC application. Previous results by Ahmad et al [ 28 ] showed that the N mineralization rate in soil was enhanced by BC application, which explained the increase in NH 4 + -N contents due to BC addition in the present experiment. In addition, the results of our experiment showed that, in the 0–10 cm soil profile, the NH 4 + -N and NO 3 − -N contents under the treatment with added BC were higher, while, at the deeper soil profile, the NH 4 + -N and NO 3 − -N contents under the BC treatment were lower than those measured under the N fertilizer-only treatment, and this pattern was even more significant at the low N level.…”

Section: Discussionsupporting

confidence: 73%

Section: Soil Propertiesmentioning

confidence: 86%

Interaction of Biochar Addition and Nitrogen Fertilizers on Wheat Production and Nutrient Status in Soil Profiles

Liu,

Chen,

et al. 2024

Plants

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To investigate the responses of crop production and soil profile nutrient status to biochar (BC) application, we conducted a soil column experiment considering two BC addition rates (0.5 and 1.5 wt% of the weight of 0–20 cm topsoil) combined with two nitrogen (N) input levels (low N: 144 kg ha−1, LN; high N: 240 kg ha−1, HN). The results showed that BC application increased the soil pH. The soil pH of the 0–10 cm profile under LN and the 20–40 cm profile under HN were both significantly increased by 0.1–0.2 units after BC addition. Under LN, BC addition significantly increased NH4+-N (17.8–46.9%), total N (15.4–38.4%), and soil organic carbon (19.9–24.0%) in the 0–10 cm profile, but decreased NH4+-N in the 20–30 cm soil profile and NO3−-N in the 10–30 cm profile by 13.8–28.5% and 13.0–34.9%, respectively. BC had an increasing effect on the available phosphorus, the contents of which in the 10–20 and 30–40 cm soil profiles under LN and 20–30 cm profile under HN were significantly elevated by 14.1%, 24.0%, and 23.27%, respectively. However, BC exerted no effect on the available potassium in the soil profile. BC had a strong improving effect (15.3%) on the wheat yield, especially the N144 + BC0.5% treatment, which could be compared to the HN treatment, but there was no yield-increasing effect when high N fertilizer was supplied. In summary, BC improved the fertility of agriculture soil (0–20 cm) with wheat. In particular, low N inputs together with an appropriate rate of BC (0.5 wt%) could not only achieve the low inputs but also the high outputs in wheat production. In future study, we will compare the effects of multiple doses of N and BC on soil fertility and crop production.

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“…It also stabilizes soil carbon, enhances nitrogen uptake, decreases mineral nitrogen leaching, increases electrical conductivity, water availability, and water use efficiency. This enhances soil nutrient availability and tolerance to abiotic stresses [56,57,11,58]. Biocharmediated soil improvements significantly enhance photosynthetic activity, chlorophyll synthesis, gene expression, stress-responsive proteins, and hormonal balance.…”

Section: Proline Contentmentioning

confidence: 99%

Influence of Biochar and Irrigation Levels on Productivity of Marjoram (Origanum majorana L.) under Sandy Soil Conditions

Hassan,

Abbas S. M. T.,

Ismail A. Y.

2023

AJAHR

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A field experiment designed as a split-plot experiment based on a randomized complete block design with three replications was conducted during two summer successive seasons 2021 and 2022 at the Experimental Farm of EL-Quassasin Horticultural Research Station, Ismailia Governorate; Egypt, to investigate the influence of biochar at rates of 0, 2, 4, and 6 tons/fed. at three irrigation levels (1, 1.5, and 2 hours/day) using a drip irrigation system on the growth, essential oil (productivity and constituents), as well as some chemical constituents of marjoram (Origanum majorana L.) plant grown in sandy soil. The obtained results revealed that both irrigation and biochar levels affected all the above-mentioned traits. It was clear that plant growth parameters increased as long as increasing irrigation levels and biochar rate. Considering the interaction, it was clear that generally the highest values in vegetative growth (plant height, number of branches, and herb fresh & dry weights/ plant), essential oil yield/plant, N%, and K% were attained from the treatment of irrigation at 1.5 hours/day combined with biochar at the rate of 6ton/fed. On the other hand, the highest values of essential oil%, essential oil components (p-cymene, trans-Sabinene hydrate, α-terpineol), as well as proline, were recorded in stressed plants (received 1h/ day irrigation and 0 biochar). The existing outcomes show that biochar application might increase water use efficiency and produce a high yield of marjoram. Subsequently, it could be a viable option to alleviate the severity effect of water deficit in marjoram growth, which opens opportunities for cultivating arid regions.

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Biochar Effects on Mineral Nitrogen Leaching, Moisture Content, and Evapotranspiration after 15N Urea Fertilization for Vegetable Crop

Cited by 26 publications

References 61 publications

Impact of Biochar Application at Water Shortage on Biochemical and Physiological Processes in Medicago ciliaris

Impact of Biochar Application at Water Shortage on Biochemical and Physiological Processes in Medicago ciliaris

Interaction of Biochar Addition and Nitrogen Fertilizers on Wheat Production and Nutrient Status in Soil Profiles

Influence of Biochar and Irrigation Levels on Productivity of Marjoram (Origanum majorana L.) under Sandy Soil Conditions

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