돈분퇴비 시용시 산국 (Chrysanthemum boreale)의 수량과 유효성분들의 함량변화를 알아보고자 토양 16 kg이 충진된 와그너포트에서 돈분퇴비가 각각 0, 2000, 4000, 6000, 8000, 12000 kg 10a-1을 처리한 결과, 8000 kg 10a-1처리구에서 대조구보다 전체 수량과 꽃의 수량은 각각 5.9배 (195.0 g plant-1)와 24배 (21.7 g plant-1)가 증가한 것으로 조사되었다. 질소양분 이용율은 4000 kg 10a-1처리구가 66.6%로 가장 높았다. 꽃에서의 주요 아미노산은 proline (7.4~9.2 g kg-1)이였으며, 돈분퇴비의 시용량이 증가할수록 정의 상관관계를 보였다. Cumambrin A함량을 측정한 결과, 돈분퇴비 시용량에 의한 질소의 함량이 증가할수록 부의 상관관계가 나타났으나 (R2=-0.723, p〈0.01), 전체 수량면에서는 오히려 돈분퇴비의 시용량이 증가할수록 cumambrin A의 수량이 오히려 증가하였다. 이로서 돈분퇴비의 시용이 산국의 수량을 향상시킬 수 있을 것으로 기대되었다.

This study was conducted to evaluate the effects of functional ingredients with supplementation as a bulking agent in composting of swine manure. Treatments were T1 & T5；Swine mature+Vermiculite, T2 & T6；Swine manure+Perlite, T3 & T7； Swine manure+Vermiculite+Perlite, T4 & T8；Swine manure+Bark. T1, T2, T3 and T4 were supplemented with functional ingredients on d 0 of composting. T5, T6, T7 and T8 were supplemented with functional ingredients on d 3 of composting. Functional ingredients were Fermkito and Yucca. During the composting period, changes of temperature were showed traditionally composting trend. Volatile fatty acids were decreased regardless of treatments in functional ingredients supplementation. Organic matter, T󰠏N and C/N ratio were showed higher bark treatments than other treatments. pH and EC were not differences among the treatments. P₂O₅ and K₂O were showed level of 1󰠏3%. In heavy metal, Cr were showed higher in vermiculite treatment than other treatments. In conclusion, vermiculite and perlite treatments were greater composting effects than bark.

This study was conducted to evaluate chemical parameters on butchery wastes as a bulking agent in composting of swine manure. Treatments included T1 ; Swine manure + Rice hull, T2 ; Swine manure + Rice hull + Vermiculite, T3 ; Swine manure + Rice hull + Perlite, T4 ; Swine manure + Vermiculite, T5 ; Swine manure + Vermiculite + Perlite, T6 ; Swine manure + Perlite, T7 ; Swine manure + Rice hull + Vermiculite + Perlite. During the composting period, changes of temperature and pH were showed traditionally composting trend. Moisture, organic matter, total nitrogen and C/N ratio were higher rice hull than vermiculite and perlite treatments. Ammonia-N and EC were not differences among the treatments. In heavy metal, Cd and Cr were showed higher in vermiculite treatments than other treatments. Rice hull treatments were decreased volatile fatty acids compared to that of other treatments. In conclusion, rice hull containing high organic content was greater composting effects than vermiculite and perlite containing low organic content.

To clarify the proper and safe duration of maturation periods for sawdust　pig manure composts, leaf lettuces were applied with pig manure composts fermented for 15, 30, 45, 60, 75 days and 1 year (control) and cultivated in a plastic house with or without additional PE film tunnel. The changes in physiochemical properties of soil and leaf lettuce growth were measured. Shorter duration of maturation periods enhanced the generation of NH₃ gas from the composts and resulted in significant decrease in seed germination, growth and yield of leaf lettuce. Under with and without PE tunnel conditions the concentration of NH₃ from compost over 3.8 and 2.1 ㎎/100g composts, respectively induced growth reduction. In proportion to the increase of maturation duration saw　dust containing pig manure exhibited decrease in C/N ratio, NH₄⁺　N, NH₄⁺/NO₃ ratio but increase in NO₃ N contents. In case of applying pig manure compost without PE film tunnel condition the minimum maturation period of pig manure composts for safe leaf growth was 60 days, while minimum 75 days of maturation was required when applied with PE film tunnel.