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| 1 | 施加生物炭对三七连作土壤铅有效态含量的影响显示文摘以连作5a三七种植土壤为对象,研究了施加生物炭对土壤重金属Pb有效态含量的影响.结果表明,施加生物炭后,土壤pH值显著提高,Pb有效态含量显著降低,全量含量无显著变化.土壤pH提高了1.23,有效Pb含量降低了0.62mg/kg.土壤pH与有效态Pb含量呈显著负相关(r=0.626,P<0.001),因此施加生物炭后土壤pH值升高可能是土壤Pb有效态含量降低的重要原因. | 王昆艳 王豪吉 李双丽 徐武美 官会林 | 2019 | 云南师范大学学报(自然科学版)2019，39，5： | 13 |
| 2 | Co-application of compost or inorganic NPK fertilizer with biochar influences soil quality,grain yield and net income of rice显示文摘Most agricultural soils in sub-Saharan Africa are degraded,compromising the grain yield of rice and farmers return on investment.A 3-year field study was undertaken to explore the effect of the application of compost or inorganic NPK fertilizer applied alone or in combination with biochar on soil quality,grain yield of rice and net income.The five treatments were laid out using a randomized complete block design with four replications.The treatments were applied to supply approximately 75 kg N ha–1.The best fertilizer input was compost+biochar which resulted in the greatest improvement in soil physico-chemical properties by reducing bulk density and increasing porosity and moisture retention,organic matter content,percent nitrogen,available phosphorus and cation exchange capacity.Apart from treatment with inorganic fertilizer alone,treated soils showed a decrease in pH.Bacterial and fungal counts and basal respiration decreased in soils in the following order:compost+biochar>compost only>inorganic NPK fertilizer+biochar>inorganic NPK fertilizer>control.The increase in pooled grain yield and net income in response to treatment followed the order:compost+biochar>NPK+biochar>NPK>compost>control.The findings suggest that the use of compost or NPK alone might improve soil quality and increase grain yield and net income,but it is greatly recommended to co-apply these fertilisers with biochar. | Christian Adler PHARES Selorm AKABA | 2022 | Journal of Integrative Agriculture2022，21，12： | 0 |
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