| Biochar is a kind of black solid substance which is produced by pyrolysis carbonization under the condition of hypoxia.the physical properties and chemical properties of soil have a better improvement,in order to explore reasonable biochar application methods,this paper studied through pot experiment biochar as a matrix,with different fertilizers mixed and made into separate application carbon base fertilizers on the quality of Chinese cabbage,rape,maize growth and soil physical and chemical properties.The main research results are as follows:（1）Biochar-based fertilizer can improve the Vc content of cabbage.Chinese cabbage in the pot experiment,biochar base fertilizer treatment（BF）Vc content in blank treatment（CK）,controlled release fertilizer（CRF）,fertilizer treatment（CF）increased by 38.5%,19.1%and19.1%,respectively,biochar base fertilizer treatment（BF）nitrate content is lower than other varieties of different fertilizer treatment,chemical fertilizer mixed with biochar application processing（BCCF）the content of nitrate is lower than organic fertilizer and chemical fertilizer mixing processing（MCF）,significant differences between the two;Biochar base fertilizer（BF）in rape pot experiment of Vc content in blank treatment（CK）increased by13.6%,compared with compound fertilizer treatment（CF）and controlled release fertilizer（CRF）increased by 0.24 mg 100 g-1 FW and 2 mg 100 g-11 FW,biochar and biochar carbon base fertilizers mixed treatment（BCBF）rapeseed Vc content were biochar fertilizer mixing processing（BCCF）and biochar controlled release fertilizer mixing processing（BCRF）of1.2 times an 1.1 times,biochar and biochar based fertilizers mixed treatment（BCBF）soluble solids content is blank（CK）increased by 1.16%.（2）Biochar can increase the yield of maize.Biochar mixed with different fertilizer applied to processing production were higher than in biochar single processing（BC）,biochar with different fertilizers mixed with biochar and controlled release fertilizer mix of processing（BCRF）,the highest yield of 143.22 g plant-1,followed by biochar and biochar based fertilizer mixing processing（BCBF）,its output is 143.04 g plant-1,no significant difference between different fertilization.（3）Biochar added to the soil as a matrix can improve soil pH,biochar treatment（BC）and biochar and different fertilizer mixture treatment soil pH is significantly higher than that of blank treatment（CK）.（4）Adding biochar to the soil can increase the content of organic carbon in soil.Biochar treatment（BC）soil organic carbon content was 0.7%higher than that of organic fertilizer treatment（M）.Biochar and different fertilizers were treated with biochar and biochar based fertilizer treatment（BCBF）compared with biochar mixed treatment（BCCF）,biochar controlled release fertilizer treatment（CRF）high 1.24%and 0.38%;The organic carbon content of biochar based fertilizer was higher than other treatments,and there was no significant difference between different fertilization treatments.（5）Biochar can increase the inorganic nitrogen in the soil,soil total nitrogen content and soil available potassium content,biochar processing（BC）soil inorganic nitrogen content and soil total nitrogen content were higher than organic fertilizer processing（M）,soil available potassium content than organic fertilizer processing（M）increased by 16.17 mg kg-1;The soil total nitrogen content,available phosphorus and available potassium content of biochar and biochar based fertilizer mixture treatment（BCBF）were higher than that of biochar（BC）,and there was no significant difference in fertilization treatment.Biochar base fertilizer treatment（BF）,soil total nitrogen content than other varieties of different fertilizer treatments soil total nitrogen content is high,no significant difference between different fertilizer treatments,biochar base fertilizer treatment（BF）than other varieties of fertilizer treatment of effective phosphorus,rapidly-available potassium content is high,the difference is significant. |
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