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首页> 外文期刊>Archives of Agronomy and Soil Science >Characterization of biochar and their influence on microbial activities and potassium availability in an acid soil
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Characterization of biochar and their influence on microbial activities and potassium availability in an acid soil

机译：生物炭的表征及其对酸土中微生物活性和钾可用性的影响

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Application of biochar to soil has increased considerably during recent years because of its effectiveness as a soil amendment causing beneficial effects on soil health. However, the effects have been reported to vary and depend upon types of feedstock and pyrolysis conditions during biochar production. Therefore, characterization of biochar is extremely important for its efficient utilization as a soil amendment. In the present study, biochar was prepared from agro-industrial by-products (rice husk and sugarcane bagasse) and weeds (Parthenium and Lantana) under similar pyrolysis conditions. Lantana biochar (LBC) showed the highest pH (10.4) while the lowest value (8.5) being recorded in rice husk biochar (RHBC). The energy-dispersive X-ray spectroscopy (EDS) analysis indicated that LBC and Parthenium biochar (PBC) were superior with respect to potassium (K) content than sugarcane bagasse biochar (SBBC) and RHBC. The Fourier-Transform Infrared Spectroscopy (FTIR) study exhibited the existence of different functional groups in biochar. All the biochar treated soils showed significantly higher microbial activities with different degrees. Application of LBC and PBC at 4.50 g kg(-1) soil significantly increased K availability in soil. Lantana biochar and PBC amended the soil at 9 g kg(-1) significantly increased the soil pH thus makes these biochar as potential liming materials.
机译：由于其作为土壤修正案的有效性导致土壤健康有益效果，因此近年来，生物炭对土壤的应用增加了很大增加。然而，据报道，效果可以改变并且取决于生物炭生产过程中原料和热解条件的类型。因此，Biochar的表征对于其有效的利用作为土壤修正非常重要。在本研究中，生物炭是在类似的热解条件下由农业工业副产品（稻壳和甘蔗蛋白饼干）和杂草（寄生和兰那岛）制备的。 Lantana Biochar（LBC）显示了最高的pH（10.4），而在稻壳Biochar（RHBC）中记录的最低值（8.5）。能量分散X射线光谱（EDS）分析表明，LBc和阳丙烷（PBC）相对于比甘蔗蛋白Bagasse Biochar（SBBC）和RHBC的钾（K）含量优异。傅里叶变换红外光谱（FTIR）研究表现出生物炭中不同官能团的存在。所有生物炭治疗的土壤都显示出具有不同程度的微生物活性显着更高。 LBC和PBC在4.50g kg（-1）土壤中的应用显着提高了土壤中的k可用性。 Lantana Biochar和PBC修改了9克kg（-1）的土壤显着增加土壤pH，从而使这些生物炭成为潜在的跛行材料。

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