Effect of Weed Control on Establishment and Herbage Production in Dwarf Napiergrass
Effect of Weed Control on Establishment and Herbage Production in Dwarf Napiergrass作者机构：Interdisciplinary Graduate School of Agriculture and Engineering University of Miyazaki Miyazaki 889-2192 Japan Faculty of Agriculture University of Miyazaki Miyazazaki 889-2192 Japan Graduate School of Agriculture University ofMiyazaki Miyazaki 889-2192 Japan
出 版 物：《Journal of Life Sciences》 (生命科学（英文版）)
年 卷 期：2014年第8卷第1期
页 面：46-50页
学科分类：090503[农学-草业科学] 0909[农学-草学] 0905[农学-畜牧学] 09[农学] 0901[农学-作物学]
主 题：杂草控制 牧草生产 狼尾草 干物质产量 除草效果 混合播种 地膜覆盖 狗尾草
摘 要：Weed control is a crucial factor for maintaining establishment and herbage production in dwarf variety of late-heading type (DL) napiergrass (Pennisetum purpureum Schumach) in southern Kyushu, Japan. This study was aimed to verify the weeding-effect on dry matter (DM) production in the farm level and to examine the effect of several weed control, i. e. mixed sowing of annual setaria (abbreviated as S), which has no regrowth ability after stem-elongation, paper-mulching (as P) and hand-weeding (as +W), compared with no-weeding (as ?W) on DM yield and quality of DL napiergrass in two years. Weed control practices significantly (P 0.05) promoted several plant growth attributes in DL napiergrass, compared with no-weeding both in the farm and experimental levels. Paper-mulchidng (P-W or P+S-W) had highest yields among several practices in both years. Setaria-sowing ha a partially mitigating effect of weed damage on DM production of DL napiergrass, while additive DM gain from setaria could compensate the yield decrease in DL napiergrass and reduce herbicide cost. Neither digestibility nor crude protein was affected by any weed control in either year. Thus, paper-mulching and annual setaria-sowing could be effective alternative practices for weed control of this species.
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