CAJ | 학술논문

通过室内试验研究温度、土壤含水量、水层和土层深度对马唐萌发和生长的影响。结果表明，马唐最适萌发温度为25～35℃，最低萌发温度为10～15℃，最高萌发温度为40～45℃；马唐萌发最适土壤含水量为40％，土壤含水量低于10％、大于50％时，萌发率显著降低；水层对马唐影响较大，水层处理可显著降低马唐的出苗率；随着土层深度的增加，马唐出苗率逐渐降低，土层深度＞7 cm则马唐不能出苗。
통과실내시험연구온도、토양함수량、수층화토층심도대마당맹발화생장적영향。결과표명，마당최괄맹발온도위25～35℃，최저맹발온도위10～15℃，최고맹발온도위40～45℃；마당맹발최괄토양함수량위40％，토양함수량저우10％、대우50％시，맹발솔현저강저；수층대마당영향교대，수층처리가현저강저마당적출묘솔；수착토층심도적증가，마당출묘솔축점강저，토층심도＞7 cm칙마당불능출묘。
The effects of environmental factors including temperature ,soil water content ,and water and soil depth on ger-mination and growth of Digitaria sanguinalis was studied in the laboratory .The optimum temperature for D.sanguinalis germination was 25~35 ℃, the lowest germination temperature was 10~15℃, and the highest temperature was 40~45 ℃.The optimum and lowest soil water content for germination was 40%and less than 10%,respectively;above a soil water content of 50%,germination rate decreased significantly .Water depth had some effect on D.sanguinalis,its emer-gence rate was significantly reduced by different water depth treatments;emergence rate declined as soil depth increased , and no emergence was observed when the soil depth was over 7 cm.