Soil health and crop response of biochar: an updated analysis

Mousavi, Seyed Majid; Srivastava, Anoop Kumar; Cheraghi, Meysam

doi:10.1080/03650340.2022.2054998

Cited by 29 publications

(8 citation statements)

References 165 publications

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“…A study revealed that by using an infiltration method of urea and biochar, urea penetrated adequately into the pores of the biochar and was evenly distributed on its surface; this method met the N requirements of crops better than the direct mixing of biochar and urea [4]. Biochar's high organic carbon content, large surface area, high microporosity, and range of functional groups also help plants retain nutrients [16].…”

Section: Discussionmentioning

confidence: 99%

“…Nevertheless, SRFs are extremely expensive, so they are not used widely. Biochar-based slow-release fertilizers can solve the nutrient deficiencies of biochar, the high nutrient loss rate of traditional chemical fertilizers, and low crop nutrient utilization [15,16], primarily due to the benefits of biochar nutrient retention, carbon sequestration, emission reduction, and soil improvement, while realizing the functions of nutrient adsorption and slow-release, reducing nutrient loss [17,18]. As a result of their wide availability and extreme cost-effectiveness across the globe, biochar-based resources can be used as cost-effective and climate-smart nutrient carriers for the formulation of slow-release fertilizers [19].…”

Section: Introductionmentioning

confidence: 99%

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Biochar-Based Fertilizer Improved Crop Yields and N Utilization Efficiency in a Maize–Chinese Cabbage Rotation System

Zhao

Xie²,

Hou-jun

et al. 2022

Agriculture

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Optimizing fertilization strategies is crucial for obtaining high crop yields and efficient N utilization. This study aimed to understand the potential increase in crop yield and the N utilization efficiency under biochar-based fertilizer (BF) in a maize–Chinese cabbage rotation system. Biochar-based slow-release fertilizer (BF) is an important nutrient-efficient management strategy. The yields and growth-related traits of the crops, N utilization efficiency, quality, and dynamic changes in soil inorganic N in a maize-cabbage rotation system were investigated in a pot experiment under three N fertilizer application strategies in 2019–2020; the maize stage included (1) zero-N fertilizer, i.e., control (N 0 g pot−1); (2) NPK (N 5.25 g pot−1); and (3) BF (N 5.25 g pot−1). The Chinese cabbage stage included (1) zero-N fertilizer, i.e., control (N 0 g pot−1); (2) NPK (N 6.25 g pot−1); and (3) BF (N 6.25 g pot−1). Compared with the CK and NPK treatments, the BF treatment had the highest average maize and Chinese cabbage yields at 86.99 g plant−1 and 498.88 g plant−1, respectively. BF improved the plant height, stem diameter, and ear height of maize and the leaf length, leaf width, and leaf number of Chinese cabbage, as well as increased the N utilization efficiency of maize and cabbage. BF increased the starch content of maize grain and the amino acid, sugar, and vitamin C contents of cabbage. In the critical growth stages of maize and Chinese cabbage, BF application increased the content of soil inorganic N, which coincided with the nutrient requirements in the critical growth stages of the crops. Overall, BF is an effective method to improve crop yield and N utilization in the maize–Chinese cabbage rotation systems and is a fertilization strategy with broad applicability prospects.

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Section: Discussionmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

Biochar-Based Fertilizer Improved Crop Yields and N Utilization Efficiency in a Maize–Chinese Cabbage Rotation System

Zhao

Xie²,

Hou-jun

et al. 2022

Agriculture

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“…However, co-application of digestate with other amendments rich in recalcitrant carbon such as biochar [ 27 , 28 , 29 , 30 ] may improve soil nutrients and stability and prevent losses due to leaching or rapid transformation. Biochar is known to greatly increase the stable SOC fraction in amended soil [ 31 , 32 , 33 ] and the abundance and activity of soil microbiota as well as increase crop yields [ 34 , 35 ]. Moreover, biochar improves soil fertility by reducing nutrient leaching and mobility [ 36 , 37 ], thus providing more nutrients for plant utilization.…”

Section: Introductionmentioning

confidence: 99%

Effect of Digestate Modified with Amendments on Soil Health and Plant Biomass under Varying Experimental Durations

et al. 2023

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A digestate with amendments provides plants with available nutrients and improves the microbiological properties of treated soil. Modification of a digestate through the addition of a biochar and sulphur source is less well-known. This pot experiment aimed at comparing the short- and long-time fertilization effects of a digestate enriched with biochar, with elemental sulphur, or with a combination of both on soil health and plant biomass. The experiment was carried out with maize, cultivated twice (1st–12th week = pre-cultivation; re-sowing after shoot harvest, 13th–24th = main cultivation) in soil amended with prepared digestate. The digestate used in pre-cultivation was incubated untreated (D) and was then treated with biochar (D + B), with elemental sulphur at a low (LS) and high (HS) dose, or with a combination of both (D + B + LS and D + B + HS). An additional unamended digestate (D) was added to each soil variant before the main cultivation. The application of digestate with a high dose of elemental sulphur and biochar mediated the most significant differences in the soil. The increase (compared to the unamended soil) was of short-term type (+11% and +6% increased total nitrogen and carbon after 12 weeks), then of long-term type (+54% and +30% increased sulphur and arylsulfatase activity after 24 weeks), and later emerged in the 13th to the 24th week of the experiment (+57% and +32% non-inhibited urease, increased N-acetyl-β-D-glucosaminidase and phosphatase). No significant differences in the effect of the applied amendments on dry aboveground plant biomass were observed.

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“…Especially in recent years, the researches of biochar in soil improvement, especially in the soil environment of farmland and fruit trees, had become more and more extensive ( 26 ). Mousavi et al ( 27 ) showed that biochar was the most promising option for addressing environmental problems such as soil degradation and food production and highlighted the response of biochar in the soil-plant-environment continuum.…”

Section: Introductionmentioning

confidence: 99%

Biochar combined with organic and inorganic fertilizers promoted the rapeseed nutrient uptake and improved the purple soil quality

Liu

et al. 2022

Front. Nutr.

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Biochar is a kind of organic matter that can be added into soil to improve soil quality. To study the effect of biochar combined with organic and inorganic fertilizers on rapeseed growth and purple soil fertility and microbial community, a completely randomized block design was designed with three levels of biochar (B0: no biochar, B1: low-rate biochar, B2: high-rate biochar); two levels of inorganic fertilizers (F1: low-rate inorganic fertilizer; F2: high-rate inorganic fertilizer); and two levels of organic fertilizers (M1: no organic fertilizer; M2: with organic fertilizer). All combinations were repeated three times. The combined application of biochar and organic and inorganic fertilizers could improve soil pH, soil fertility and soil microbial community richness: The pH of B1F2M1 increased 0.41 compared with the control, the nitrogen, phosphorus and potassium content increased by 103.95, 117.88, and 99.05%. Meanwhile, soil microbial community richness was also improved. Our research showed that biochar could promote the Nutrient Uptake of rapeseed, and the combined application of biochar with organic and inorganic fertilizers could improve soil fertility and increase microbial diversity. Low-rate biochar combined with organic fertilizer and low-rate inorganic fertilizer was the most suitable application mode in rapeseed production in purple soil area of Southwest China.

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Soil health and crop response of biochar: an updated analysis

Cited by 29 publications

References 165 publications

Biochar-Based Fertilizer Improved Crop Yields and N Utilization Efficiency in a Maize–Chinese Cabbage Rotation System

Biochar-Based Fertilizer Improved Crop Yields and N Utilization Efficiency in a Maize–Chinese Cabbage Rotation System

Effect of Digestate Modified with Amendments on Soil Health and Plant Biomass under Varying Experimental Durations

Biochar combined with organic and inorganic fertilizers promoted the rapeseed nutrient uptake and improved the purple soil quality

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