CAJ | 학술논문

通过小区试验研究了华北地区不同播期对二月兰( Orychophragmus violaceus)生长发育、养分吸收和产量的影响.结果表明,播期推迟会造成二月兰的出苗数、越冬数、养分累积量和产量下降,以9月14日播种为最高,其鲜草产量达到20925 kg/hm2,氮、磷、钾累积量分别达到51.59、6.95和93.44 kg/hm2,种子产量达到667 kg/hm2；但植株的氮、磷含量有随播期推迟而上升的趋势.播期推迟会导致二月兰生育期延迟,表现为收获时二月兰秸秆和种子的含水量增加.本试验条件下,综合考虑二月兰在华北地区的最适播期为9月14日.
통과소구시험연구료화북지구불동파기대이월란( Orychophragmus violaceus)생장발육、양분흡수화산량적영향.결과표명,파기추지회조성이월란적출묘수、월동수、양분루적량화산량하강,이9월14일파충위최고,기선초산량체도20925 kg/hm2,담、린、갑루적량분별체도51.59、6.95화93.44 kg/hm2,충자산량체도667 kg/hm2；단식주적담、린함량유수파기추지이상승적추세.파기추지회도치이월란생육기연지,표현위수획시이월란갈간화충자적함수량증가.본시험조건하,종합고필이월란재화북지구적최괄파기위9월14일.
Plot experiments were carried out to study the effects of sowing date on growth, nutrient absorption and yield of Orychophragmus violaceus. Results showed that the emergence and over-wintering number, nutrient accumulations and yield were decreased significantly by sowing delayed. Sowing date on September 14th, the fresh yield, N, P, K accumulations and seed yield were maximums, reached 20 925, 51. 59, 6. 95, 93. 44 and 667 kg/hm2 respectively. But N and P contents of straw increased as the sowing date postponed. Late sowing could delay the growth period of Orychophragmus violaceus. Under the experimental conditions, September 14th was the best sowing date.