Formula Screening and Optimization of Physical and Chemical Properties for Cultivating Flammulina filiformis Using Soybean Straw as Substrate

文献类型： 外文期刊

第一作者： Sun, Ruixiang

作者： Sun, Ruixiang;Han, Xuerong;Sun, Ruixiang;Han, Jiandong;Yang, Peng;Xie, Hongyan;Li, Jin;Huang, Chunyan;Yao, Qiang;Gong, Zhiyuan;Yang, Shude;Wang, Qinghua;Li, He

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关键词： soybean straw; Flammulina filiformis; biological efficiency; agronomic characters

期刊名称：HORTICULTURAE （ 影响因子：3.0； 五年影响因子：3.2 ）

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年卷期： 2025 年 11 卷 8 期

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收录情况： SCI

摘要： Recently, there has been a growing interest in using agricultural and forestry residues to cultivate Flammulina filiformis. However, there is limited research on cultivating F. filiformis with soybean straw as a substrate. This study systematically optimized the cultivation formula for F. filiformis using soybean straw as the raw substrate and explored the effects of the water content, carbon-to-nitrogen ratio (C/N ratio), substrate particle size, and substrate loading on its growth and development. By replacing corncob, wheat bran, and soybean hulls with soybean straw and increasing the proportion of rice bran, the cultivation formula for growing F. filiformis was optimized. We found that the maximum fruiting body yield of 405 g (330 g dry substrate per bottle) and a biological efficiency of 122.73% were achieved using a substrate mixture of 25% soybean straw, 20% corncob, 20% cottonseed hull, 25% rice bran, 8% wheat bran, 1% CaCO3, and 1% shellfish powder. The yield and biological efficiency of fruiting bodies cultivated on the substrate containing 25% soybean straw did not show significant differences compared to the control group. However, the cultivation formula containing 25% soybean straw yielded F. filiformis with significantly higher levels of amino acids, essential amino acids, and fat. These findings suggest that the 25% soybean straw substrate formulation can serve as a viable alternative to the control formulation for the cultivation of F. filiformis, although variations in the nutritional composition exist. Based on this optimized formula, an optimal biological efficiency can be achieved with a substrate-to-water ratio of 1:1.7, a wet substrate loading amount of 940 g (in a 1250 mL cultivation bottle), and a soybean straw particle size range of 6-8 mm. The optimal C/N ratio for cultivating F. filiformis using soybean straw ranges from 27:1 to 32:1. Additionally, orthogonal experiments revealed that the nitrogen content significantly affected the fruiting body yield, stipe length, and stipe diameter, while the water content mainly affected the pileus diameter, pileus thickness, and number of fruit bodies. Under defined conditions (dry substrate loading volume of 337 g (in a 1250 mL cultivation bottle), a substrate-to-water ratio of 1:1.6, and a C/N ratio of 26:1), the maximum yield and biological efficiency per bottle reached 395 g and 117.21%, respectively. Our findings indicate that the F. filiformis cultivation using soybean straw as the raw substrate exhibits a promising performance and extensive application potential.

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