Increasing biomass of winter wheat using sorghum biochars

Sigua, Gilbert C.; Stone, K. C.; Hunt, P. G.; Cantrell, Keri B.; Novak, Jeffrey M.

doi:10.1007/s13593-014-0253-2

Cited by 25 publications

(6 citation statements)

References 31 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…These authors further reported that compared to the full N dose, application of a combination of 1/2 biochar and 1/2 recommended N‐based fertilizer resulted in 2.3 times and 2.5 times higher N uptake by maize and wheat, respectively, illustrating the improved efficiency in the utilization of N in the presence of biochar. Sigua, Stone, Hunt, Cantrell, and Novak () reported similar results of enhanced N uptake in aboveground parts of winter wheat when a sorghum‐derived biochar was applied with and without P‐based fertilizer, whereas P uptake in aboveground and belowground parts of winter wheat varied greatly in different soils treated with sorghum biochar as compared to untreated soils. Moreover, sorghum biochar combined with P appreciably improved K uptake by wheat compared to control plants.…”

Section: Biochar As Soil Amelioratormentioning

confidence: 70%

Impact of biochar properties on soil conditions and agricultural sustainability: A review

et al. 2017

View full text Add to dashboard Cite

This review summarizes the influences of pyrolysis conditions and feedstock types on biochar properties and how biochar properties in turn affect soil properties. Mechanistic evidence of biochar's potential for enhancing crop productivity, carbon sequestration, and nutrient use efficiency are also discussed. The review identifies the knowledge gaps, limitations, and future research directions for large‐scale use of biochar. Both pyrolytic parameters and feedstock types are considered to be the main factors controlling biochar properties such as nutrient content, recalcitrance, and pH. Biochar produced at low temperatures may improve nutrient availability and crop yield in acidic and alkaline soils, whereas high‐temperature biochar may enhance long‐term soil carbon sequestration. Biochar can also improve the efficiency of inorganic and organic fertilizers by enhancing microbial functions and reducing nutrient loss, thereby making nutrients more available to plants. Integration of biochar and chemical or organic fertilizers generally provides for better nutrient management and crop yield in most types of soils. Although biochar can improve degraded soils, it is not a panacea; as such, soil‐ and crop‐specific biochar are needed in order to ensure optimum crop yield and agricultural sustainability.

show abstract

Section: Biochar As Soil Amelioratormentioning

confidence: 70%

Impact of biochar properties on soil conditions and agricultural sustainability: A review

et al. 2017

View full text Add to dashboard Cite

show abstract

“…More specifically, Panditt et al [19] reported increasing soil moisture, available K and P by addition of biochars in a moderately acidic low-input Nepalese soil. Application of pine-chip and poultry litter (50:50) biochar blend significantly increased soil concentrations of K, P, Na, Mg, and Ca by 830%, 669%, 2315%, 687%, and 307%, respectively, relative to the control [20].…”

Section: Introductionmentioning

confidence: 94%

Biochars Improve Nutrient Phyto-Availability of Hawai’i’s Highly Weathered Soils

et al. 2018

View full text Add to dashboard Cite

Highly weathered soils in Hawai’i are low in fertility, negatively affecting plant growth. The potential of biochar for improving soil nutrient availability to crops is promising, and prompts this study. Two biochars at 2% (w/w) made of lac tree (Schleichera oleosa (Lour.) Oken) wood and mixed wood (scrapped wood and tree trimmings) with and without vermicompost or thermocompost at 2% (w/w) were added to an Ultisol (Ustic Kanhaplohumult, Leilehua series) and an Oxisol (Rhodic haplustox, Wahiawa series) of Hawai’i. In each soil two additional treatments—lime + compost and un-amended soil—served as the control. Chinese cabbage (Brassica rapa cv. Bonsai) was used as the test plant in two greenhouse plantings, which had a factorial completely randomized design with three replicates per treatment. The results indicated that soil acidity, nutrient in the soils, plant growth and nutrient uptake were improved by the amendments compared to the control. The combined additions of biochar and compost significantly increased pH and EC; reduced exchangeable Al; reduced Mn and Fe in the Oxisol; increased P, K, and Ca content of the soils; and increased Ca, Mg and Fe uptake. Exchangeable aluminum in the Ultisol decreased from 2.5 cmol+/kg to nil; Mehlich-3 extractable P, K, Ca, Mg, Fe, and Mn in the Ultisol increased by 1478%, 2257%, 1457%, 258%, 125% and 72%, respectively compared to the un-amended soil, while the same nutrients increased or decreased in the Oxisol by 180%, 59%, 308%, −14%, and −36%, respectively. Shoot and total cabbage fresh and dry matters increased by 94%, 96%, 107%, and 112%, respectively, as compared to the lime plus compost treatment. Cabbage growth in the Ultisol amended with the lac tree wood biochar and vermicompost was almost twice over the lime and vermicompost treatment. Essential nutrients in the plant tissues, except for N and K, were sufficient for the cabbage growth, suggesting increases in nutrients and reduced soil acidity by the additions of biochar combined with compost were the probable cause. It is recommended that locally produced biochars and composts be used to improve plant nutrient availability in the highly weathered soils.

show abstract

“…The biochar-mediated decrease in Cd concentration in wheat might be due to high pH, porosity, CEC and active functional groups of biochar along with improvement in soil structure and cycling of some mineral nutrients. However, biochar potential towards Cd immobilization and plant uptake varies with feedstock types, processing and growth conditions (Mahmoud et al, 2011;Sigua et al, 2015;Xu et al, 2014). Thus, biochar application with other amendments such as compost and/or mineral fertilization might be a useful option for the remediation of Cdcontaminated soils.…”

Section: Biocharmentioning

confidence: 99%