摘要
对杂草生物学特性的认识是杂草综合管理研究的重要内容之一，也是近年来研究的热点［１］。因此，对各种杂草萌发特性的研究也越来越受到重视。升马唐（Ｄｉｇｉｔａｒｉａｃｉｌｉａｒｉｓ）为禾本科马唐属植物，常见于我国南北各省，是世界热带和温带地区广布种［２］。...
The experiment show that the most suitable temperature for crabgrass( Digitaria ciliaris )
germination is 25℃-35℃, with germination rate up to 81% - 86%. Lighting is an inevitable
condition. The crabgrass seed has wide adaptability to the solution pH from 2 to 10 and the
solution potential,from -0.2 to -0.8 MPa which have no obvious impact on the crabgrass seed.
The increase of nitrogen concentration between 0.01% - 0.18% speeds up the crabgrass seed
germination than in deionized water. The main soil depth for seed emergence is 0 - 2 cm due to
the undisturbed soil crop system. Some strategies for controlling the crabgrass can be made
according to its germination and emergence characteristics.[HJ*3/5]
出处
《生态学杂志》
CAS
CSCD
北大核心
1999年第3期23-26,共4页
Chinese Journal of Ecology
基金
国家自然科学基金重点项目
关键词
升马唐
种子萌发
出苗特性
crabgrass,
germination, emergence, temperature, lighting.
