以微生物提昇菇類木屑堆肥品質之研究

Abstract

將篩選到的溶磷菌與固氮菌於金針菇木屑堆肥中繁衍增殖，研製出含豐富有益微生物的堆肥，微生物存活及高族群密度可以維持21天。有益微生物接種于金針姑木屑堆肥，盆栽試驗結果顯示堆肥與土壤以1:200混合施用，看不出有益微生物接種于堆肥有顯著促進甘藍菜與玉米生長的效果，當堆肥用量提昇為1:40時，有益微生物接種于堆肥才顯著有促進甘藍菜與玉米生長的效果。金針菇木屑堆肥接種有益微生物7天至14天後施用於土壤，較能促進甘藍菜與玉米的生長。 In Taiwan, there are lots of agricultural wastes produced each year. It should cause a big problem of environmental pollution, if they are not well treated. In order to protect ecosystem balance and maintain good quality of environment, reusing agricultural organic wastes should be encouraged and taken action. Using agricultural organic wastes to produce organic fertilizers apply to field as providing nutrients for the crops is a proper way. Beneficial microorganisms can dissolve insolble phosphate compounds of soil, fix nitrogen to biomass from air, mineralize organic compounds to release nutrients, and secrete promoting plant growth substances. General speaking, composts have fewer beneficial microorganism populations and slower nutrient releasing rates than those of chemical fertilizers. The objectives of the study were to use beneficial microorganisms, such as nitrogen-fixing bacteria and phosphate-solbilizing bacteria, to promote the quality of wasted winter mushroom sawdust compost. Investigating its effect on the growth of kale, cabbage, and corn. The results showed that the compost applied to soil at a rate of 1:200, the effect of the compost on the fresh weight of kale was significant, but not for that of cabbage or corn crop. As the application rate rose up to 1:40, the effect of the compost on the fresh weights of cabbage and corn crop increased significantly.