Influence of poultry litter and biochar on soil water dynamics and nutrient leaching from a very fine sandy loam soil

Bohara, Hari; Dodla, Syam K.; Wang, Jim J.; Darapuneni, Murali; Acharya, Bibek; Magdi, Selim; Pavuluri, Kiran

doi:10.1016/j.still.2019.01.001

Cited by 55 publications

(40 citation statements)

References 42 publications

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“…In loose sandy soils, water availability is the most important factor determining plant growth and nutrient availability from mineral fertilizers. Even in dry, hot seasons and in case of limited soil sorption capacity, most of the nutrients are lost due to intensive leaching during heavy rains of stormy origin or, regardless of the weather, by microbial activity [29]. Limited sorption capacity caused precipitation of the salts from soil solution, dryness, cracking, and quicker water runoff.…”

Section: Discussionmentioning

confidence: 99%

Wheat Straw Biochar and NPK Fertilization Efficiency in Sandy Soil Reclamation

et al. 2020

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Intensive land use including cultivation may result in soil degradation. Restoring natural conditions or utility values called reclamation usually requires prior improvement of soil properties by using fertilizers or soil amendments. Special attention is paid to biochar, as it can improve soil physical and chemical properties. Therefore, amendment is potentially useful for preparation of degraded soil for future vegetation. In pot experiments, we studied the effect of wheat straw biochar (5% v/w) (soil with biochar (S + BC)), two rates of mineral fertilizer (no fertilizer as a control set (SC) and single initial dose of fertilizer (S + NPK)), and combination of biochar and fertilizer (S + B C + NPK) on sandy soil properties and grass growth. Biochar significantly increased soil pH, total organic carbon content (TOC), and volumetric water content (VWC, +24% after one week of measurements). However, dry mass of grass shoots was lower in S + BC than in SC (−38%). It was also observed that, in fertilizer, applied sets high concentrations of salts caused crust formation, surface cracking, and overdrying. Considering the results, biochar may be useful for increasing sandy substrate fertility, providing proper conditions for revegetation during reclamation.

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Section: Discussionmentioning

confidence: 99%

Wheat Straw Biochar and NPK Fertilization Efficiency in Sandy Soil Reclamation

et al. 2020

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“…Biochar application as a soil amendment is motivated by its capacity to enhance crop yields and alter the soil physical and chemical properties, such as soil water holding capacity (WHC), pH, cation exchange capacity (CEC), nutrient retention, and organic carbon [22,24,25]. Nevertheless, this influence is strongly dependent on biochar final temperature production, particle size, soil texture and mineralogy [26,27].…”

Section: Introductionmentioning

confidence: 99%

Effects of Biochar Application in a Sorghum Crop under Greenhouse Conditions: Growth Parameters and Physicochemical Fertility

et al. 2020

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Application of biochar from vine shoots (Vitis vinifera L.) as an organic amendment in the soil is an alternative agricultural management of interest. The behavior of this type of amendment in the soil requires more information to adjust the pyrolysis conditions in order to obtain a high-quality biochar. The aim of this work is determining the influence of the application of this type of biochar on the soil-plant system. For this purpose, an agronomic test was performed in greenhouse pots. A randomized tri-factorial block design was adopted with the following factors: final pyrolysis temperature (400 and 600 °C), application rate (0 wt. % as a control, 1.5 and 3 wt. %) and texture of the growing media (sandy-loam and clay-loam origin). The selected crop was sorghum (Sorghum bicolor L. Moench), the development and production of which was evaluated during two complete growing cycles under greenhouse conditions. Application of biochar produced at 400 °C significantly increased plants roots dry weight in the sandy-loam growing substrate (52% compared to the control). Grain production was also significantly affected by biochar application, showing better results after addition of biochar produced at 400 °C. Water holding capacity and K, Ca, and Mg contents were enhanced by biochar addition, with evident effects of the application ratios for some of these variables. The effect on the pH of substrates in the sandy-loam texture was weak; however, a significant decrease was observed after the addition of biochar produced at 600 °C.

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“…A variável volume radicular teve comportamento semelhante, sendo a dose 3.500 kg ha -1 a que apresentou melhor média, havendo decréscimo em função do aumento das doses (Figura 1B). Esses resultados podem estar relacionados ao fato do biochar contribuir para uma maior absorção de nutrientes disponíveis no substrato (BOHARA et al, 2019). Resultados semelhantes foram encontrados por Silva et al…”

Section: Resultsunclassified