Korean Journal of Agricultural Science (농업과학연구)
- Volume 20 Issue 2
- /
- Pages.109-116
- /
- 1993
- /
- 2466-2402(pISSN)
- /
- 2466-2410(eISSN)
Competition Relation and Forage Yields by Different Sowing Rate in Grass and Legume Mixtures
몇가지 화본과목초(禾本科牧草)와 콩과목초(科牧草)를 혼파(混播)할 경우 파종비율(播種比率)에 따른 목초(牧草)의 생산성(生産性)과 경합관계(競合關係)
- Cho, Jin Woong (Dept. of Agronomy, College of Agriculture, Chungnam National University) ;
- Kim, Choong Soo (Dept. of Agronomy, College of Agriculture, Chungnam National University) ;
- Lee, Suk Young (Agricultural Biotechnology Institute, RDA)
- Published : 1993.12.31
Abstract
This experiment was carried out to investigate the competition in mono-and binary-associations of four forage species; ochardgrass (Dactylis glomerata L. cv. Potomac), tallfescue (Festuca arundinacea Scnreb, cv. Fawn), white clover (Trifolium repns L. cv. California), and red clover (Trifolium pratense L. cv. Kenland) as affected by different sowing rate. Each species was grown in interspecific stands in field. And samplings of shoot were taken at first cliping stages. The interspecific competition was evaluated by calculating traditional methods: aggressivity, relative yield total (RYT), relative crowding coefficient (RCC), and compensation index (CI) with shoot dry matter production and calories of nutrient ingredient of each species in mono-and binary-mixture. Compared mixture with monoculture. RYT based on dry weight was lucrative in mixture except for orchardgrass-redcover (1:0.1,1:1). RYT of calculated calories with produced nutrients was in inlucrative in mixture of orchardgrass-redclover's 1:0.1 mixture by RYT<1.0. Generally, RYT was the highest in mixture of 1:0.5 sowing rate. Aggressivity of grass was poor competition tendency that raised up legume's sowing rate, particularly, with whiteclover. In grasses, tallfescue was stronger competitor than orchardgrass with legume in mixture, RCC of grasses against legume's growth was depressed in higher sowing rate with legume. Grass's growth depression was severer with whiteclover than redclover in mixture.
본(本) 실험(實驗)은 목초지(牧草地)에 있어서 혼파(混播)의 경우 화본과목초(禾本科牧草)와 콩과목초(科牧草)를 혼파할 때 그에 따른 생산성(生産性)과 경합관계(競合關係)를 분석(分析)하고 화본과와 콩과목초를 일정한 비율로 파종하였 때 파종비율에 따른 초종들간의 경합에 미치는 영향을 조사하기 위해 실시하였던 바 그 결과를 요약하면 다음과 같다. 1. 건물중(乾物重)은 단파(單播)했을 때 톨페스큐구에서
Keywords