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시비가 Skiing 에 의한 침식지 식생의 재생에 미치는 영향
박근제 ( G . J . Park ) 한국축산학회 1987 한국축산학회지 Vol.29 No.6
Heavy skiing at the late winter often injures the vegetation cover and even the top soil of the course. A fast recovery during the vegetation period is necessary in order to avoid further damages. Therefore, this trial was investigated to find out the influence of PK- and NPK - fertilization on the vegetation of a steep skiing course at the Bavarian Alps in the southern part of Germany during the period from 1981 to 1983. 1. The regeneration of the living plants cover was clearly improved by fertilization. The mean percentage of vegetation cover with PK - fertilization was a little higher than that of NPK-application. However, the regeneration of the grass cover with NPK-fertilization was much more rapid than that of PK-fertilization on the skiing eroded plots. 2. Vegetational succession on the skiing eroded plots was much more influenced by the NPK-application than PK-fertilization. As the species of Agrostis tennis, Dactylis glomerata and Trifolium repens were strong the absorptive ability of nutritive substance, they increased by the fertilization distinctly. On the other hand the plant species of Carer ferruginea, Carex flacca, Milium effusum, Melica nutans and Mercurialis perennis decreased due to PK-and NPK-fertilization gradually. 3. The fodder value of the vegetations on the eroded plots was greatly increased by NPK-fertilization, furthermore those highly evaluated grasslands due to change of positive direction in botanical composition.
초지에 대한 질소 및 가리비료 (加里肥料) 의 시용에 관한 연구 3 . 목초의 건물 및 양분생산성에 대한 질소 및 가리비료의 잔효
박근제 ( G . J . Park ) 한국축산학회 1991 한국축산학회지 Vol.33 No.6
This experiment was conducted to find out the influences of different patterns of nitrogen and potassium distribution and its residual effects on dry matter and nutrient productivity in a mixturey grassland established at the Livestock Experiment Station in Suweon The results obtained are summarized as follows; 1. The residual effect of nitrogen and potassium fertilization in spring season was relatively higher than those in summer. 2. The residual effect on dry matter and nutrient productivity persisted for 3-6 months after fertilization. 3. It was desirable for nitrogen and potassium fertilizers to be dressed heavily in spring and at less than 0% in midsummer.
양종성(J . S . Yang),한흥전(H . J . Han),이만상(M . S . Lee),송진달(J . D . Song),박근제(G . J . Park) 한국축산학회 1987 한국축산학회지 Vol.29 No.3
Field experiment was conducted to test the adaptability and forage yield of introduced oats varieties for soiling crops rotation. The results are summarized as follows: 1. Jeonjin and Cravache of the tested varieties have been identified as early varieties. Their heading date were 30th of May. 2. Taepung, Forage queen and Foothill with 130㎝ in plant height were the tallest varieties. Early varieties belong generally under short plant category. 3. Taepung and Forage queen with more than 1,000 ㎏ per 10a in dry matter yield are excellent. 4. There were significantly positive correlation between dry matter yield and some characteristics such as plant height, stem diameter and leaf weight. 5. Cayuse and Jeonjin of the tested varieties have been considered as good varieties for cropping system on upland because of excellent yield potentiality and earliness.
김원호(W. H. Kim),신재순(J. S. Shin),서 성(S. Seo),정의수(E. E. Chung),임영철(Y. C. Rim),박근제(G. J. Park),최순호(S. H. Choi),이종경(J. K. Lee),유근창(G. C. Ryu) 한국초지조사료학회 2003 한국초지조사료학회지 Vol.23 No.4
본 연구는 중복부지역 합리작에서 총체보리 조제방법별 조제시간 그리고 사료가치에 미치는 연구를 위해 1999부터 200l년까지 수행하였다. 총체보리 조제방법별 건물수량은 트랜치 사일로와 원형곤포 사일리지에 각각 ha당 I2.562kg과 12.555kg으로 비슷하였으나 가축기호성은 원형곤포 사일리지로 저장하는 것보다 트랜치로 저장하는 것이 좋았으며, ha당 트랜치 사일리지와 원형곤포 사일리지의 작업시간은 각각 4.9와 57시간이었다. 또한 일일 작업면적은 트랜치와 원형곤포 사일리지 각각 4ha와 3ha이었으며, 원형곤포 사일리지 조제시 효율적인 작업일은 7일정도 된다.