Plant Growth Media로써 지렁이 분립이 Orchardgrass 생육에 미치는 영향

The Effects of Earth Worm Casts as a Plant Growth Media on the Growth of Orchardgrass Seedlings

분립과 상토재(vermiculite, perlite, peat moss)의 혼합비율이 Orchardgrass 유식물체의 생육에 미치는 영향을 조사하였다. 분립과의 혼합비율은 각각 100:0(control), 75:25, 50:50, 25:75, 0:100이였고 얻어진 결과는 다음과 같다. 1. 초장(PL)과 상토재와의 다른 혼합구에서 보다도 PM과의 혼합구에서 월등히 좋았다. 2. 경수(NT)는 다른 혼합구와 달리 분립 : PM(50:50)에서 유의하게 증가했다. 3. 근장(RL)은 다른 처리구와 유의하게 차이가 있었으며, PE와의 혼합비율에서 뿌리의 길이생장이 높았다. 4. 엽중(LW)은 50:50의 모든 혼합구에서 유의한 차이가 없었고, 특히 분리 : PM(75:25)와 분립 : PM(25:75)의 혼합구에서 유의한 차이가 인정되지 않았다. 5. 지상부 경중(SW)은 50:50의 모든 혼합구와 분립 : PM(75:25), 분립 : VL(75:25)에서 유의한 차이가 없었다. 6. Orchardgrass 유식물체의 지상부 경중과 지하부의 건물중이 생물학적 수량 증가 경향을 나타내었다. 7. 분립과 PM의 혼합비율이 50% 이상에서 orchardgrass 유식물체의 생물학적 수량을 증가시켰다.

The effects of earthworm casts as a plant growth media on the growth of orchardgrass seedlings and the changes of physico-chemical properties in worm casts mixture soils were investigated during the growth period of 1998. Worm casts were mixtured with vermiculite, perlite and peat moss, and mixture ratios of worm casts with commercial recommended soil were 100:0(control), 75:25, 50:50, 25:75, and 0:100, respectively. The results were obtained as follows; 1. Plant length(PL) was increased in higher mixture ratios of worm casts and peat moss than those of other mixture ratios of commercial recommended soils. 2. Number of tillers(NT) were significantly increased in mixture ratios of worm casts and peat moss(50:50) and 100% of vermiculite. 3. Root length(RL) was significantly differences between mixture ratios at the worm casts, and the highest value was obtained at all mixture ratios of worm casts and perlite. 4. Dry weight of leaf(LW) was not significantly differences at mixture ratios of 50:50 in all treatments. Especially, between the mixture ratios of worm casts with peatmoss(25:75) and peat moss(75:25) were not significantly differences in dry weight of leaf(LW). The highest value of dry weight of leaf(LW) was obtained at mixture ratios of peat moss and worm casts. 5. Dry weight of tillers(SW) was not significantly differences at mixture ratios of 50:50 in all treatments, and peat moss(75:25) and vermiculite(75:25), respectively. 6. biological yield(BY) at all treatments were increased by yield components of dry weight of tillers(SW), dry weight of root(RW) and length of root(RL). 7. The biological yield of orchardgrass seedlings was greatly increased with mixture ratios of worm casts and peat moss over the 50%.