Intercropping Cedrela odorata with Shrubby Crop Species to Reduce Infestation with Hypsipyla grandella and Improve the Quality of Timber
Intercropping Cedrela odorata with Shrubby Crop Species to Reduce Infestation with Hypsipyla grandella and Improve the Quality of Timber
复制标题
雪松与灌木作物间作减少大叶扁虱侵染，提高木材质量
DOI：
10.1155/2013/637410
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发表时间：
2013
期刊：
影响因子：
--
通讯作者：
中科院分区：
文献类型：
--
作者：
香柏是一种珍贵的热带阔叶木树种，其发生危害严重，严重影响人工林树干质量。本研究旨在探讨间作OFC是否会降低稻瘟病的侵染率，改善其生长性能。不同轮作方式的香料苗。C。实现的高度增量。玉米(Zea Mays)、木豆(Cajanus Cajan)和木薯(Manihote Esculenta)的间作显著刺激了头两年的气味吸收。他的攻击。与对照小区相比，在这些处理中，大粒小麦的产量也大大减少，而与豆类和水稻间作没有任何改善。当树木和作物之间的横向竞争较高时，这种影响尤其明显。相应地，以高作物为特征的处理茎质量较高。间作C。两年后，在树高(276 cm ±93)、成活率(100%±0)和质量(81%±13.5)方面表现最好。我们认为，间作对赤霉病敏感的苗木是可行的。灌木多用途树种可改善树木生长和木材质量，从而增加这些树种对重新造林的吸引力。
Cultivation ofCedrela odorata, a valuable tropical hardwood species, is restricted by the mahogany shoot borer (Hypsipyla grandella), whose attacks reduce stem quality in forest plantations. This study investigated whether infestation rates would be reduced and growth performance improved by the intercropping ofC. odoratatree seedlings with different crop rotations. The height increment achieved byC. odorataduring the first two years was significantly stimulated by the intercropping of maize (Zea mays), pigeon pea (Cajanus cajan), and cassava (Manihot esculenta). Attacks ofH. grandellawere also considerably reduced in these treatments, compared to the control plots, while intercropping with beans and rice produced no improvement. The effect was particularly distinct when lateral competition between trees and crops was high. Accordingly stem quality was higher in the treatments featuring tall crops. Trees intercropped withC. cajanperformed best in terms of height (276 cm ±93), survival (100% ±0), and quality (81% ±13.5 of trees with satisfying stem quality) after two years. We concluded that intercropping of tree seedlings which are susceptible toH. grandellawith shrubby multipurpose species can improve both tree growth and timber quality and hence increase the attractiveness of such species for reforestation.
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