Application of Oyster Mushroom Fungus Bran Bio-organic Fertilizer in'Suiyu 23'Cultivation
'Suiyu 23'maize variety was selected as the material for this study,which involved six fertiliza-tion treatments:the maize special compound fertilizer(CK),oyster mushroom fungus bran bio-organic fertilizer combined with maize special compound fertilizer in ratios of 1∶4(A),1∶3(B),1∶2(C),1∶1(D),and 1∶0(E).Each treatment was repeated three times using random block arrangement.By observing and analyzing the growth characteristics of maize plants,leaf area index at different growth stages,post-flowering filling char-acteristics,yield-related factors,and overall yield,the optimal ratio of oyster mushroom bran bio-organic fer-tilizer to maize special compound fertilizer was determined.The results showed that treatment C increased the stem diameter of maize plants in the'Suiyu 23'variety,reduced the lodging and folding ratio,and decreased the empty stalk ratio.The leaf area index of maize increased during each growing period,and the post-blossom grain filling volume also increased.The number of grains per ear increased significantly,leading to a 6.76%in-crease in actual yield compared to the application of maize special compound fertilizer alone.The content of pro-tein and free amino acid in maize grain increased,which improved their quality.This study suggests that bio-organic fertilizer prepared from oyster mushroom bran fermentation has significant application value in maize cul-tivation and is worth further promotion.
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