Modelling the effect of weed-seed distribution in the soil profile on seedling emergence

被引:48
作者
Grundy, AC [1 ]
Mead, A [1 ]
Bond, W [1 ]
机构
[1] HORT RES INT,BIOMETR DEPT,WELLESBOURNE CV35 9EF,WARWICK,ENGLAND
关键词
D O I
10.1111/j.1365-3180.1996.tb01667.x
中图分类号
S3 [农学(农艺学)];
学科分类号
0901 ;
摘要
Experiments to monitor weed seedling emergence from various soil depths were begun in 1989. Recently shed seeds were buried in either narrow bands at a range of depths in the soil or mixed evenly between the soil surface and each of these depths. Total emergence of Stellaria media (L.) Vill., Matricaria spp., Veronica persica Poiret, Veronica arvensis L. and Polygonum aviculare L., declined with increasing depth of burial. A similar pattern was observed for Chenopodium album L. with the exception of emergence from the surface layer. The reduction in emergence with increasing soil depth was greater for seeds in the narrow-banded treatments than for those in broad layers. A model was developed using the data from the narrow-banded treatments to predict emergence from distributions over broad layers. Predictions from the model closely agree with the data from the present broad-layer treatments and those from a similar experiment made in the 1960s. By including the effects of depth of seed burial on seedling emergence, this model could be combined with models that determine the effects of cultivation on seed distribution, and therefore improve precision of predictions of seedling emergence from the seedbank.
引用
收藏
页码:375 / 384
页数:10
相关论文
共 16 条
[1]   PENETRATION OF LIGHT INTO SOIL AND ITS ROLE IN THE CONTROL OF SEED-GERMINATION [J].
BLISS, D ;
SMITH, H .
PLANT CELL AND ENVIRONMENT, 1985, 8 (07) :475-483
[2]  
CHANCELLOR R. J., 1964, Proceedings 7th Brit. Weed Control Conf., 1964., P607
[3]   SEED DORMANCY AND FIELD EMERGENCE IN POLYGONUM AVICULARE [J].
COURTNEY, AD .
JOURNAL OF APPLIED ECOLOGY, 1968, 5 (03) :675-&
[4]   A MODEL OF THE EFFECTS OF CULTIVATION ON THE VERTICAL-DISTRIBUTION OF WEED SEEDS WITHIN THE SOIL [J].
COUSENS, R ;
MOSS, SR .
WEED RESEARCH, 1990, 30 (01) :61-70
[5]  
DESSAINT F, 1991, J APPL ECOL, V28, P712
[6]   TECHNIQUE FOR SEPARATING WEED SEED FROM SOIL [J].
FAY, PK ;
OLSON, WA .
WEED SCIENCE, 1978, 26 (06) :530-533
[7]  
Finney D.J., 1977, PROBIT ANAL, VIII
[8]   INFLUENCE OF CULTIVATION REGIME ON WEED FLORAS OF ARABLE CROPPING SYSTEMS [J].
FROUDWILLIAMS, RJ ;
DRENNAN, DSH ;
CHANCELLOR, RJ .
JOURNAL OF APPLIED ECOLOGY, 1983, 20 (01) :187-197
[9]  
McCullagh P., 1989, MONOGRAPHS STAT APPL, V37
[10]  
ROBERTS HA, 1972, WEED RES, V12, P316, DOI 10.1111/j.1365-3180.1972.tb01226.x