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- 根本 正之
- 東京農業大学農学部
書誌事項
- タイトル別名
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- Ecological Characteristics of Important Weed Species in Sown Meadows
- The Response of Tall-growing Weeds to Cutting
- 大型雑草の刈取りに対する反応
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説明
To obtain high yield of forages, tall-growing weeds should be suppressed in sown meadows. For that, ecological characteristics of Erigeron annuus and Artemisia princeps were studied as important tall-growing weeds.<br>1) The response of isolated weeds.<br>Their regrowth after cutting was affected by the frequency and date of cutting: 5 times cutting, one cutting in June, and one cutting in July.<br>Except the July-cutting plot, E. annuus regenerated shoots and formed flower-buds soon after cutting. But the cutting treatment delayed the flowering, therefore the growing period was extended. E. annuus in the July-cutting plot was remarkably inhibited in its regrowth and died.<br>A. princeps regenerated shoots and emerged sprouts from the top of a rhizome. They did not form flower-buds on new shoots.<br>2) Yearly change of the biomass of E. annuus and A. princeps in sown meadows.<br>In sown meadows, in addition to the frequency and date of cutting, forage species affects the regeneration of E. annuus and A. princeps after the cutting remarkably.<br>The biomass of E. annuus was maintained in the frequent cutting plot and was decreased in the no-cutting plot. Under the infrequent- or no-cutting conditions, E. annuus was covered by forage grasses growing luxuriantly. By contrast, A. princeps became a dominant weed in no- or infrequent-cutting plots. The regeneration rate of young shoots of A. princeps was lower than forage grasses, therefore it was suppressed by sown grasses in the frequent cutting plot.
収録刊行物
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- 雑草研究
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雑草研究 24 (1), 12-18, 1979
日本雑草学会
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詳細情報 詳細情報について
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- CRID
- 1390282679256193024
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- NII論文ID
- 130003810874
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- ISSN
- 18824757
- 0372798X
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- 本文言語コード
- ja
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- データソース種別
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- JaLC
- Crossref
- CiNii Articles
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- 抄録ライセンスフラグ
- 使用不可
