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Potential for Using Weed Seed Content in the Soil to Predict Future Weed Problems

Published online by Cambridge University Press:  12 June 2017

Robert G. Wilson ,
Eric D. Kerr  and
Lenis A. Nelson
Robert G. Wilson
Affiliation:
Univ. of Nebraska, Scottsbluff, NE 69361
Eric D. Kerr
Affiliation:
Univ. of Nebraska, Scottsbluff, NE 69361
Lenis A. Nelson
Affiliation:
Univ. of Nebraska, Scottsbluff, NE 69361
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Abstract

The seed composition in the upper 15-cm soil horizon was determined and correlated with weed seedlings growing with fieldbeans (Phaseolus vulgaris L. ‘Valley’). The total seed reservoir averaged 250 seed/kg of soil, and 19 species were represented. Seed occurring with the most frequency were redroot pigweed (Amaranthus retroflexus L. ♯ AMARE), common lambsquarters (Chenopodium album L. ♯ CHEAL), and common purslane (Portulaca oleracea L. ♯ POROL). Seed from these plants accounted for over 85% of the seed found. The number of barnyardgrass [Echinochloa crus-galli (L.) Beauv. ♯ECHCG], buffalobur (Solanum rostratum Dunal ♯ SOLCU), common lambsquarters, common purslane, and common sunflower (Helianthus annuus L. ♯ HELAN) seed in the soil was correlated with the number of plants growing in the field with fieldbeans. A correlation occurred between redroot pigweed, yellow foxtail [Setaria lutescens (Weigel.) Hubb. ♯ SETLU], and barnyardgrass growing in corn (Zea mays L.) fields in the fall of the year and plants growing in the field with fieldbeans the following year.

Keywords

Seed bankgerminationAmaranthus retroflexusChenopodium albumPortulaca oleraceaAMARECHEALPOROLSOLCUHELANSETLU
Type
Weed Biology and Ecology
Information
Weed Science , Volume 33 , Issue 2 , March 1985 , pp. 171 - 175
Copyright
Copyright © 1985 by the Weed Science Society of America 

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