覆土对双孢菇生长发育的影响

目的]确定寒地适用的覆土材料配方,增加双孢菇的产量。方法]采用随机区组法,应用泥炭土与田土的不同配比,进行双孢菇栽培试验。结果]随着泥炭土比例的增加,持水率和孔隙度增大,70%泥炭土处理的持水率、孔隙度、电导率值最大,分别为59.47%、81.95%和0.456 m S/cm。泥炭土加入对双孢菇产量的影响差异较大,70%泥炭土和30%田土混合产量最高,覆土30 d后产量达4.56 kg/m~2,较CK增产18.75%。该处理双孢菇品质最好,粗蛋白、粗脂肪和粗灰分含量分别为41.49%、4.11%和10.76%;70%泥炭土双孢菇增产最多,增产0.72 kg/m~2,可增收7.2元/m~2。结论]综合考虑建议泥炭土的添加量为50%~70%。

Effect of Covering Soil on Growth and Development of Agaricus bisporus

Objective] To determine the formulation of soil-covering material for increasing the yield of Agaricus bisporus in cold region.Method] We cultivated A.bisporus by mixing farmland soil and peat soil with different ratios by using randomized blocks method.Result] Water holding ratio and porosity increased as the increase of peat proportion.The maximum value of water holding ratio,porosity and conductivity were 59.47％,81.95％ and 0.456 mS/cm in the treatment of 70％ peat soil.Furthermore,peat soil had significant influence on A.bisporus yield,the mixture of 70％ peat soil and 30％ field soil produced the highest yield,the yield after covering soil reached 4.56 kg/m2,increasing 18.75％ compared to CK.In this treatment,A.bisporus had the best quality,the content of crude protein,crude fat and crude ash reached 41.49％,4.11％ and 10.76％.The yield of A.bisporus increased most by 0.72 kg/m2,and its income increased by 7.2 yuan/m2.Conclusion] We recommend the peat proportion is 50％-70％.