초록
포기자의 시비적량과 알맞는 분류방법을 구명코저 시험을 실시하여 얻은 결과를 요약하면 1. N14P$_2$O$_{5}$7K$_2$O14kg/10a(표준비) 보다 N14P$_2$O$_{5}$14K$_2$O14k/10a 시비시 경장은 4cm길었고, 엽면적은 45~490$\textrm{cm}^2$가 많았으며, 주당건물중은 1.6~5gr이 무거웠다. 2. 1984~1985년 2개년 건과중 표준비의 171kg/10a보다, N14P$_2$O$_{5}$21K$_2$O14kg/10a 시용은 185kg/10a로 8%증수되었으며, 3. 엽의 3요소 흡수량과 건물중은 P$_2$O$_{5}$는 1%, N과 $K_2$O는 5% 수준에서 유의성이 인정되었으며, 경제성을 감안한 10a시비 적량은 N은 13.8kg, P$_2$O$_{5}$는14.2kg, $K_2$O는 14.3kg이었다. 4. 시비방법중 3요소의 분시시용은 3요소 기비시용보다, 주당 엽면적과 건물중의 증대로 인해 건과중이 20% 많았으며, 낙엽은 전혀 되지 않아 합리적인 시비방법으로 사료되었다.
This study was conducted to investigate the proper fertilizer application level and top-dressing method of Lycium chinense MILL in 1984 and 1985. The results obtained were summerized as follows; Stem length was 4cm longer, leaf area was 45-490$\textrm{cm}^2$ larger, dry matter weight per plant was 1.6-5g heavier and average yield of dry fruit of two years was higher as 183kg per l0a in double amount of potassium( 14kg/l0a) application than in standard level of potassium(7kg/l0a). Highly positive correlation was found between absorption amount of inorganic elements of phosporus(l%), nitrogen, potassium(5%) and dry matter weight. Proper fertilizer application level was 13.8kg(N), 14.2kg(P) and 14.3kg(K) per l0a. Dry fruit yield of top-dress-ing plot was 20% heigher than that of basal dressing plot through increase of leaf area per plant and dry matter weight per plant.