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首页> 外文会议>International Horticultural Congress on Science and Horticulture for People >Weed Control with a Cover Crop (Neonotonia wightii) in Mandarin Orchards in Guadeloupe (FWI)
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Weed Control with a Cover Crop (Neonotonia wightii) in Mandarin Orchards in Guadeloupe (FWI)

机译：用瓜德罗普州普通话果园（FWI）的覆盖作物（NeoNotonia Wightii）进行杂草控制

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Weed management is an important point of citrus production in Guadeloupe (French West Indies). Orchards are traditionally planted on sloping ground, and the use of herbicides regularly sprayed on the whole farm is the most common practice. Such a practice impacts the environment and the production benefits. Introduction of cover crops on these orchards is an interesting alternative. The very first aim of cover crops is to control weeds, but benefits in terms of erosion and other services are also expected. This study consists in quantifying the effects of cover crop introduction on mandarin orchards (Citrus reticulata 'Frémont'). The cover crop system is designed in order to obtain a perennial association and to limit chemical intervention as much as possible. Over the 3 years course of the study, two different modalities were compared: (i) farmer practice, mandarin orchard with herbicide (Glyphosate) every 2 months, and (ii) mandarin orchard in association with Neonotonia wightii. Despite some difficulties in setting up the system, N. wightii efficiently suppressed weeds after 6 months. No more herbicide was sprayed on the associated plot while the bare ground plot received 5 herbicides a year. Meanwhile, no significant difference in the predawn water potential of the soil has been revealed between N. wightii and bare ground conditions. This indicates that N. wightii use growth does not entail additional water supply. After 3 years of experimentation, no impact on the orchard performance of the field has been observed. Experimentation is still on-going to estimate the transfer of this new technique to the farmer.
机译：杂草管理是瓜德罗普（法国西印度群岛）柑橘生产的重要点。果园传统上种植在倾斜的地面上，并且使用过量喷洒在整个农场上的除草剂是最常见的做法。这种做法会影响环境和生产效益。这些果园的封面作物引入是一个有趣的替代方案。封面作物的第一个目的是控制杂草，但预期侵蚀和其他服务方面的益处。本研究包括量化覆盖作物介绍普通话果园的影响（柑橘类reticulata'Frémont'）。覆盖作物系统是为了获得多年生协会，并尽可能限制化学干预。在3年的研究过程中，比较了两种不同的方式：（i）农民实践，橘子果园每2个月，（ii）与NeoNotonia Wightii相关联的普通话果园。尽管建立了一些困难，但在6个月后，N.Wightii有效地抑制了杂草。没有更多的除草剂在相关的地块上喷洒在相关的地块上，而裸地绘制每年接受过5个除草剂。同时，在N.Wightii和裸机之间的预先预热水势中没有显着差异。这表明N.Wightii使用增长不会额外供水。经过3年的实验后，未观察到该领域的果园性能的影响。实验仍在逐步估算这种新技术转移到农民。

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