| The weight of hickory shell accounts for about 70% of hickory,which contains high alkaloids.Due to the huge biomass and extremely low utilization rate brought by depulping,hickory shell causes great environmental pollution,and the price of cotton seed shell and other materials in conventional selenium rich Pleurotus ostriches cultivation materials is still high.In this study,hickory shell and cottonseed shell and other materials are used to make composite substrate to cultivate selenium rich Pleurotus ostriches,The optimum formula of cultivating Se enriched Pleurotus ostriches with Different Pecan puke content,selenium enriched Pleurotus ostriches with different selenium concentration,and selenium enriched Pleurotus ostriches with Different Pecan puke content,and the data analysis of Se enriched Pleurotus ostriches with Different Pecan puke content,were selected comprehensively,which provided the theoretical basis and reference for the utilization of agricultural substrate of Pecan puke.The main research contents are as follows:1.Through the analysis of the quality of Pleurotus ostriches with different content of pecan shell base material,the mycelium of Pleurotus ostriches cultivated with 30% content of pecan shell base material has the fastest growth speed,the shortest growth cycle,the highest yield,the promotion effect of 50% content of pecan shell base material on the quality of Pleurotus ostriches is weakened,the fruiting body yield of Pleurotus ostriches is still improved,but the mycelium is yellowish,and the end is divided Fork.The results showed that pecan shell can promote the growth of Pleurotus ostriches,but the high content of pecan shell can affect the quality of mycelium,so it is feasible to use the agricultural substrate of pecan shell.2.Through the analysis of the quality,polysaccharide and protein content of Pleurotus ostriches treated with different selenium concentration,it was found that the pecan shell culture material with selenium concentration below 50 mg / kg not only promoted the growth of Pleurotus ostriches,but also increased the content of polysaccharide and protein in Pleurotus ostriches fruiting body,and the selenium content in Pleurotus ostriches fruiting body also increased with the increase of selenium concentration in the culture material,showing a linear correlation with the empty space at 40 mg / kg Compared with the white group,the selenium content increased about 65 times.In addition,the selenium content of the Pleurotus ostriches fruiting body and the stipe were determined.3.Through the determination of selenium content in Pleurotus ostriches with different contents of pecan shell,it was found that pecan shell could promote the enrichment of selenium in Pleurotus stretches to a certain extent.The content of organic selenium was higher than that of inorganic selenium,and the content of protein selenium was higher than that of polysaccharide selenium and nucleic acid selenium,among which the content of alkali-soluble protein was the most.It may be that the alkaloids contained in Carya catabiosis shell play a role in promoting the conversion of selenium. |
