Effects of biochar amendment on rapeseed and sweet potato yields and water stable aggregate in upland red soil

Soil Aggregate Stability and Associated Structure Affected by Long-Term Fertilization for a Loessial Soil on the Loess Plateau of China

“…However, organic fertilizers affect soil aggregate stability and structure mainly through their effects on organic matter [7,[13][14]. Our results demonstrated that MWD was positively correlated with SOC content (P<0.01; Fig.…”

“…The MWD and GMD are crucial indicators of aggregate stability [14,40]. The MWD reflects the proportion of macro aggregates [15], while the GMD estimates the size of the most frequent aggregate size class [41].…”

“…Simansky et al [11] even reported that chemical fertilization (NPK) did not have statistically significant influence on increasing the soil structure stability of orthic luvisol. In addition, organic matter was a major contributor to aggregate stability because it provided important biological binding agents, which decreased the breakdown of aggregates by slaking, swelling, or even osmoting stress [7,[12][13][14]. Some studies have reported that aggregate stability was higher in soil fertilized with manure than in soil fertilized with chemical fertilizers [15][16].…”

Phytotoxicity assessment on corn stover biochar, derived from fast pyrolysis, based on seed germination, early growth, and potential plant cell damage

“…As the soil application is an irreversible process, the presence of toxic elements and PAHs in the biochar may introduce potential contaminants to the soil environment, especially after long-term application. Although positive responses to plant growth and yield under biochar amendment have been reported (Graber et al 2010;Liu et al 2014;Wang et al 2012), recent investigations have focused on soil contamination and ecotoxicological assessments of biochar applications (Oleszczuk et al 2013;Solaiman et al 2012). It is of high importance, therefore, to objectively assess plant responses to biochar applications to avoid potential exaggeration of its effects or restriction of its future use.…”

A Field Experiment on Enhancement of Crop Yield by Rice Straw and Corn Stalk-Derived Biochar in Northern China

“…Liu et al [29] suggested that rapeseed and sweet potato yields were increased by 36.02% and 53.77%, respectively, if wheat straw biochar was added into soil at a dosage of 40 ton/ha in Jiangxi Province in Southern China. Zhang et al [30] concluded that wheat straw biochar could enhance rice yield both in fertilized and unfertilized paddy in Tai Lake plain.…”