Phosphorus retention and availability in three contrasting soils amended with rice husk and corn cob biochar at varying pyrolysis temperatures

Eduah, Joseph Osafo; Nartey, Eric Kwesi; Abekoe, M.K.; Breuning‐Madsen, Henrik; Andersen, Mathias Neumann

doi:10.1016/j.geoderma.2019.01.016

Cited by 117 publications

(60 citation statements)

References 44 publications

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“…In addition, the same work reported that untreated sandy soils have a higher population of phosphate-solubilizing bacteria, such as Pseudomonas , Azospirillum , Burkholderia , and Bacillus , than TM-treated soils ( Rungthong, 2016 ). It has been reported that increases in available P in acidic soils occur when acidic soils are amended with organic residues and liming materials ( Eduah et al., 2019 ).…”

Section: Resultsmentioning

confidence: 99%

Nutrient composition of diverse organic residues and their long-term effects on available nutrients in a tropical sandy soil

Sukitprapanon

Jantamenchai

Tulaphitak

et al. 2020

Heliyon

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Intensive use of sandy soils for agriculture leads to significant land degradation. The application of locally available organic residues can improve soil fertility, particularly in the context of organic farming practices. This research examined nutrient concentrations in locally available organic residues with different biochemical compositions/qualities and investigated the effects of long-term application of these residues on available nutrients, such as P, K, Ca, Mg, Fe, Mn, and Zn, as well as on total organic carbon (TOC) accumulation in tropical sandy soil. A field experiment was conducted in Northeast Thailand, where four local organic residues, groundnut stover (GN), tamarind leaf litter (TM), dipterocarp leaf litter (DP), and rice straw (RS), had been applied annually for 22 years. These organic residues were acidic (pH 3.7–5.8). The macronutrients N, P, and K were present at elevated levels in the high-quality organic residue GN, whereas medium-quality TM and low-quality RS and DP were dominated by the macronutrients Ca and Mg and the micronutrients Fe, Mn, and Zn. The incorporation of organic residues, particularly TM, resulted in the accumulation of TOC. Furthermore, long-term incorporation of TM increased soil pH, whereas incorporation of GN, DP, and RS did not. The higher increase in the soil pH of TM soil is likely because TM contains higher levels of ash alkalinity compared to other residues. The application of medium-quality TM increased the soil available P, Ca, and Mg, whereas low-quality organic residue RS and DP applications increased the concentrations of soil micronutrients (e.g., Mn and Zn). However, long-term applications of local organic residues did not increase available K in the sandy soil.

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Section: Resultsmentioning

confidence: 99%

Nutrient composition of diverse organic residues and their long-term effects on available nutrients in a tropical sandy soil

Sukitprapanon

Jantamenchai

Tulaphitak

et al. 2020

Heliyon

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“…Haynes and Naidu () established that the conducive environment for P to be available for crops is within a pH range of about 5.6–6.5. Eduah, Nartey, Abekoe, Breuning‐Madsen, and Andersen () corroborated this finding by investigating the P desorbability for acidic and neutral Ghanaian soils amended with rice straw biochar and associated enhanced P desorbability to the priming effect of biochar. The soil in our experimental area was one of the acid soils investigated in the aforementioned work (Soil A, (Eduah et al, )).…”

Section: Discussionmentioning

confidence: 73%

“…Eduah, Nartey, Abekoe, Breuning-Madsen, and Andersen (2019) corroborated this finding by investigating the P desorbability for acidic and neutral Ghanaian soils amended with rice straw biochar and associated enhanced P desorbability to the priming effect of biochar. The soil in our experimental area was one of the acid soils investigated in the aforementioned work (Soil A, (Eduah et al, 2019)). We can thus infer that P availability in the B 30 treatment, which had pH within the recommended range of 5.6-6.5, may have been better and consequently increased the TDMY and IPAR.…”

Section: Crop Growth Dry Matter Yield Ipar and Rue As Affected Bymentioning

confidence: 99%

Effect of rice straw biochar and irrigation on growth, dry matter yield and radiation‐use efficiency of maize grown on an Acrisol in Ghana

Danso

Yakubu

Arthur

et al. 2019

J Agronomy Crop Science

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In order to determine whether the current low productivity associated with rainfed cultivation on degraded soils in Ghana can be improved by biochar amendment and irrigation, field experiments with maize were conducted over two seasons in 2017 and 2018. Rice straw biochar at rates of 0 t/ha (B0), 15 t/ha (B15) and 30 t/ha (B30) was combined with irrigation regimes of full irrigation (I100), deficit irrigation (I60) and no irrigation (I0). The I100 treatment was irrigated to field capacity every 3–4 days according to time domain reflectometry measurements while the I60 treatment received 60% of the irrigation amount given to I100 but with the same irrigation frequency. The I0 treatment was not irrigated. In both seasons, the B30 treatment recorded the highest total dry matter yield (TDMY), intercepted photosynthetically active radiation (IPAR) and radiation‐use efficiency (RUE) and these were significantly (p ≤ .05) higher than B0 except for RUE in 2017. Irrigation regimes did not significantly affect TDMY, IPAR and RUE in 2017 but compared to I100, I0 significantly reduced TDMY, IPAR and RUE in the relatively dryer 2018 season. Measured ratio vegetation indices differentiated biochar treatments earlier in the 2018 season than during 2017 and increase of leaf chlorophyll content indices with biochar rate in both seasons indicated that biochar amendment improved nitrogen uptake. Our study demonstrated that rice straw biochar is capable of increasing TDMY, IPAR and RUE of maize grown on degraded soils in Ghana. The study further showed that TDMY, IPAR and RUE of deficit irrigated maize for two seasons were similar to the counterpart fully irrigated maize and may be a viable water management option for farmers in Ghana to save irrigation water resources.

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“…Phosphorus make up about 0.2% of plant dry weight but still it is the second most limiting major nutrient for plant growth after nitrogen (N) (Schachtman, Reid, & Ayling, 1998). The nature of P reaction in highly weathered tropical soils as that used in the current study leads to formation of insoluble Al, Fe and Ca phosphates which limits P availability for plant uptake (Eduah, Nartey, Abekoe, Breuning‐Madsen, & Andersen, 2019). Biochar prepared under high pyrolysis temperature (≥500°C) has the potential to increase soil pH, thereby can enhance the bioavailability of P for plant uptake.…”

Section: Introductionmentioning

confidence: 99%

Rice straw biochar and irrigation effect on yield and water productivity of okra

et al. 2020

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Dry season vegetable production is challenging due to water scarcity, a drawback on sustaining year‐round crop production. Biochar improves soil moisture and nutrient retention and may be used to improve vegetable water productivity. We examined the combined effect of rice straw biochar and irrigation on yield, water productivity, and phosphorus (P) uptake of okra (Abelmoschus esculentus L.) grown on a sandy clay loam soil in the dry season. Biochar was applied at 0, 5, 10 Mg ha−1, and 10 Mg ha−1 biochar fortified with P [10 Mg ha−1(P)] under full irrigation (FI) and deficit irrigation (DI) and replicated in each growing season for three years. Under DI, the 10 Mg ha−1 and 10 Mg ha−1(P) biochar treatments significantly (p < .05) increased okra fresh fruit yield (YFF) by 67 and 82% but had no impact on total aboveground biomass yield (YTBM) in the first growing season. Biochar at 5 Mg ha−1 had no impact on okra yield. Okra yield was higher under biochar fortified with P compared to the traditional method of applying P alone, e.g. 30 Mg ha−1(P) produced significantly higher YTBM than 30 Mg ha−1 under DI. Biochar had no impact on P uptake in the first growing season. Estimated okra water use was 224 and 193 mm under FI and DI. Yield reduction under DI compared to FI was only 8%. Amid water scarcity, a minimum of 10 Mg ha−1 rice straw biochar under DI is therefore recommended for farmers in the area.

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Phosphorus retention and availability in three contrasting soils amended with rice husk and corn cob biochar at varying pyrolysis temperatures

Cited by 117 publications

References 44 publications

Nutrient composition of diverse organic residues and their long-term effects on available nutrients in a tropical sandy soil

Nutrient composition of diverse organic residues and their long-term effects on available nutrients in a tropical sandy soil

Effect of rice straw biochar and irrigation on growth, dry matter yield and radiation‐use efficiency of maize grown on an Acrisol in Ghana

Rice straw biochar and irrigation effect on yield and water productivity of okra

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