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한국식물학회 / v.13, no.3, 1970년, pp.1-16 
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간척지에서 수도 및 기타작물의 내염성에 관한 연구 (제10보) 간척지에서 재식밀도와 N 수준 변동에 대한 수도개체군의 반응에 관하여
( Study on the Salt Tolerance of Rice and Other Crops in Reclaimed Soil Areas (Ⅹ) Responce of Rice Population to Varying Plant Density and N Levels in Reclamined Salty Area ) |
| 임형빈; 서울대학교 농과대학;
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| 초 록 |
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| Field studies were conducted with kusabue variety and factorial design of 12 treatments composed of 3 levels, 10 kg, 15 kg and 20 kg of N per 10 a , and 4 levels of 80, 100, 120, and 140 hills per $3.3m^2$ plot in reclaimed slaty area having an average of 0.48% salt concentration. The law of spacing effect was observed in the increase of the number of stems at any application levels of N, and the increased N application exceeding 15 kg N per 10 a did not increase the number of stems in maximum tillering stages. The light recieving efficiency of plant population was greatly reduced by close planting when compared with the effect of increased N applications in heading stage. The spacing effect on the C/F ratio was not noted but was reduced markedly by the increased N applications, accordingly the spacing effect on rough rice yields to the LAI was less than by the increase N application. Closer spacing increased the number of panicle, and non-effective stems, decreased the number of grains per panicle and panicle weight. The increased N applications also increased the number of panicle, reduced the weight of 1,000 grains and the ratio of matured grains. It was recommended to plant 100 hills per $3.3m^2$ with the application of 15 kg N per 10 a in the reclaimed salty area of Korea. |
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Journal of Plant Biology / v.13, no.3, 1970년, pp.1-16
한국식물학회
ISSN : 1226-9239
UCI : G100:I100-KOI(KISTI1.1003/JNL.JAKO197011920111511)
언어 : 영어 |
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| 논문 제공 : KISTI 한국과학기술정보연구원 |
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