Shade-based control of Imperata cylindrica: tree fallows and cover crops

Imperata is shade-intolerant, although little is known of the relative roles of competition for light, water and nutrients in suppressing its growth. Shading of Imperata results in reduced carbohydrate storage, reduced rhizome and tuber-bulb production, reduced shoot dry weight, increased susceptibi...

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Main Authors: Macdicken, K. G., Hairiah, K., Otsamo, A., Duguma, B., Majid, N. M.
Format: Article
Language:English
Published: Springer 1997
Online Access:http://psasir.upm.edu.my/id/eprint/112739/
http://psasir.upm.edu.my/id/eprint/112739/1/112739.pdf
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author Macdicken, K. G.
Hairiah, K.
Otsamo, A.
Duguma, B.
Majid, N. M.
author_facet Macdicken, K. G.
Hairiah, K.
Otsamo, A.
Duguma, B.
Majid, N. M.
author_sort Macdicken, K. G.
building UPM Institutional Repository
collection Online Access
description Imperata is shade-intolerant, although little is known of the relative roles of competition for light, water and nutrients in suppressing its growth. Shading of Imperata results in reduced carbohydrate storage, reduced rhizome and tuber-bulb production, reduced shoot dry weight, increased susceptibility to competition, increased susceptibility to herbicides and decreased vigor/regeneration. Herbaceous cover crops in the genera Calapogonium, Crotoleria, Mucuna and Pueraria have been shown to effectively suppress Imperata growth and can be used to prevent and in some cases eradicate Imperata. Tree fallows with fast-growing species such as Sesbania sesban, Acacia nilotica and Leucaena leucocephala can improve soil physical and chemical properties and suppress weed growth. Forest plantations have been successfully used, particularly with the use of moderate to high tillage, weeding and fertilizer inputs to suppress Imperata growth. These plantations produce marketable wood and reclaim the site for other uses. Additional research is needed to evaluate the specific nature of competition and allelopathic effects from Imperata. Continued evaluation of tree species and provenances for Imperata suppression, forms of tillage after woody fallow crops and the constraints to adoption of cover crops and trees as Imperata control measures are also needed.
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spelling upm-1127392025-01-27T08:05:28Z http://psasir.upm.edu.my/id/eprint/112739/ Shade-based control of Imperata cylindrica: tree fallows and cover crops Macdicken, K. G. Hairiah, K. Otsamo, A. Duguma, B. Majid, N. M. Imperata is shade-intolerant, although little is known of the relative roles of competition for light, water and nutrients in suppressing its growth. Shading of Imperata results in reduced carbohydrate storage, reduced rhizome and tuber-bulb production, reduced shoot dry weight, increased susceptibility to competition, increased susceptibility to herbicides and decreased vigor/regeneration. Herbaceous cover crops in the genera Calapogonium, Crotoleria, Mucuna and Pueraria have been shown to effectively suppress Imperata growth and can be used to prevent and in some cases eradicate Imperata. Tree fallows with fast-growing species such as Sesbania sesban, Acacia nilotica and Leucaena leucocephala can improve soil physical and chemical properties and suppress weed growth. Forest plantations have been successfully used, particularly with the use of moderate to high tillage, weeding and fertilizer inputs to suppress Imperata growth. These plantations produce marketable wood and reclaim the site for other uses. Additional research is needed to evaluate the specific nature of competition and allelopathic effects from Imperata. Continued evaluation of tree species and provenances for Imperata suppression, forms of tillage after woody fallow crops and the constraints to adoption of cover crops and trees as Imperata control measures are also needed. Springer 1997 Article PeerReviewed text en http://psasir.upm.edu.my/id/eprint/112739/1/112739.pdf Macdicken, K. G. and Hairiah, K. and Otsamo, A. and Duguma, B. and Majid, N. M. (1997) Shade-based control of Imperata cylindrica: tree fallows and cover crops. Agroforestry Systems, 36 (1-3). pp. 131-149. ISSN 0167-4366; eISSN: 1572-9680 https://link.springer.com/article/10.1007/BF00142871?error=cookies_not_supported&code=27798ea6-8ffc-46b2-ae08-6f4596c7f966 10.1007/bf00142871
spellingShingle Macdicken, K. G.
Hairiah, K.
Otsamo, A.
Duguma, B.
Majid, N. M.
Shade-based control of Imperata cylindrica: tree fallows and cover crops
title Shade-based control of Imperata cylindrica: tree fallows and cover crops
title_full Shade-based control of Imperata cylindrica: tree fallows and cover crops
title_fullStr Shade-based control of Imperata cylindrica: tree fallows and cover crops
title_full_unstemmed Shade-based control of Imperata cylindrica: tree fallows and cover crops
title_short Shade-based control of Imperata cylindrica: tree fallows and cover crops
title_sort shade-based control of imperata cylindrica: tree fallows and cover crops
url http://psasir.upm.edu.my/id/eprint/112739/
http://psasir.upm.edu.my/id/eprint/112739/
http://psasir.upm.edu.my/id/eprint/112739/
http://psasir.upm.edu.my/id/eprint/112739/1/112739.pdf