Response of Morchella esculenta Growth and Development to Different External Nutrient Sources of Wood Chips
Taking soil and exogenous nutrient bags from different growth stages of Morchella esculenta as the test materials,a comparative analysis method was adopted to study the effects of different wood chip exogenous nutrient sources on the physicochemical properties and nutrient content of soil and nutrient bags during the growth and development process of Morchella eculenta,in order to provide reference for the optimization of exogenous nutrient bag formulations in Morchella esculenta cultivation.The results showed that the content of organic C in the soil showed a continuous upward trend before the mycelium was fully bagged,and the organic carbon content in D5 soil was the highest after harvesting and bag removal effective nitrogen and available potassium content in the soil showed a decreasing trend,while the content of available N in the nutrient bag showed an increasing trend,and the content of hemicellulose and starch in the nutrient bag decreased significantly.The yield of Morchella esculenta treated with D5,D6 and D3 was higher,while the fruit body quality of Morchella esculenta treated with D3 was the best,with calcium,zinc,total protein,and crude fiber content were high levels.In conclusion,with the aim of increasing yield only,Lycium chinense fermentation formula had the highest yield(779 kg per 667 m2),followed by Caragana korshinskii fermentation material and apple wood chips raw material.Lycium chinense had the lowest raw material yield(609 kg per 667 m2).In terms of nutrient quality and yield,apple wood chips treated as an exogenous nutrient bag(D3)had the best effect on planting Morchella esculenta.
Morchella esculentawood chipsexogenous nutrient sourcesnutrient conversion and utili-zation
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