Pepper straw is used as a raw material to prepare biochar,which is mixed with pig manure and chicken manure in varying pro-portions to produce pepper straw biochar-based organic fertilizers by heap fermentation.The effect of pepper straw biochar based or-ganic fertilizer on the growth of chives was studied by pot experiment.The results show that:After 28 days of potted plants,total plant length of different treatments of chives ranged from 22.73±3.84 cm to 33.78±1.36 cm,fresh plant weight ranged from 0.49±0.10 g to 1.26±0.37 g,and fresh root weight ranged from 0.06±0.02 g to 0.18±0.07 g.Applying three kinds of biochar based organic fertilizer with the mixed ratio of pepper straw and pig manure at 7∶3,and the mixed ratio of pepper straw and chicken manure at 9:1 and 7:3,all three indexes of plant length,plant fresh weight and root fresh weight of small chives could achieve the effect of applying compound fertilizer.The results can serve as a reference for the scientific development of biochar-based organic fertilizers for small chives and for improving the efficient and comprehensive utilization of pepper straw.
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