Abstract
This paper takes the biochar application test at scientific research bases where a piece of an area for the test in Shenyang Agricultural University as the research object. Seven fertilization treatments are selected, combined with field experiments and indoor analysis methods to study the effects of biochar with nitrogen, phosphorus and potassium on soil nutrient and corn yield. The results showed that: application of biochar can significantly increase soil organic matter content, and increase with the content of biochar added; application of biochar can obviously increase the content of available N and rapid available P in the soil; under the conditions of this experiment, biochar with nitrogen and phosphorus potassium treatment can increase soil available potassium content. There were no significant effects that different amounts of biochar on soil total nitrogen, total phosphorus and total potassium.
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