Effects of combined microbial fungicide and soybean straw biochar on nutrients and quality of Brassica napus in black soil of sand ginger
To clarify the effect of synergistic application of combined functional fungicides and soybean straw biochar on the black soil of ginger,the black soil of sand ginger was used as the research object,Using in situ pot experiments in the field,six treatments(BC1,BC2,BC3,MB1,MB2,MB3)based on the conventional fertilizer application were conducted,and investigated the effects of different treatments on the chemical properties of the black soil of sand ginger,the growth and the quality of Chinese cabbage.Compared with the control group,the application of biochar alone(BC1,BC2,BC3)and microbial fungi with biochar(MB1,MB2,MB3)significantly increased the soil organic matter,total nitrogen,effective phosphorus contents and the content of soluble sugar,soluble protein,and vitamin C of Brassica napus intherangesof18.98％-64.49％,11.82％-40.00％,23.41％-98.07％and28.89％-66.37％,15.25％-46.33％,42.98％-152.76％,respectively.The growth,resistance to rhizoctonia,and quality of Chinese cabbage showed a tendency of first increasing and then decreasing with the increase of biochar addition,among which MB2 treatment had the best effect.Soybean straw biochar with microbial agents synergistically improved soil chemistry and enhanced the quality of Brassica napus,and microbial agents with a 2.5％biochar addition rate were the most effective within the scope of this experiment.
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NSTL
万方数据
