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首页> 外文期刊>South African Journal of Plant and Soil >Farmer knowledge, attitude and practices on sorghum allelopathy in five sorghum producing districts of Zimbabwe
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Farmer knowledge, attitude and practices on sorghum allelopathy in five sorghum producing districts of Zimbabwe

机译：农民知识，津巴布韦二高粱区高粱化感染态度和实践

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Lack of knowledge about allelopathy technology may be a barrier to the adoption of allelopathy by farmers. A questionnaire survey together with physical weed sampling in farmers' fields were conducted to examine farmer knowledge, attitude and practices on sorghum allelopathy and to establish weed density in fields grown to sorghum {Sorghum bicolor (L.) Moench) during the 2015/2016 and 2016/2017 growing seasons in five districts of Zimbabwe. A third of the farmers (29%) knew about and associated poorweed growth with sorghum allelopathy. About half (49%) left sorghum stalks standing in plots after harvesting and later ploughed them under, while 6% cut and burnt them. Both previous and current season sorghum significantly (p < 0.05) affected density of Eleusine indica (L.) Gaertn., Bidens pilosa L., Acanthospermum hispidum DC and Richardia scabra L., suggesting that allelopathic effects of sorghum can be caused by both residual and freshly exuded allelochemicals. Five varieties suspected to be allelopathic by growers were evaluated for sorgoleone content. There were significant (p < 0.001) differences in sorgoleone production among the five varieties. The detection of very low levels of sorgoleone in some of the varieties suggest that compounds other than sorgoleone contributed to the suspected allelopathic effects.
机译：缺乏关于同一化技术的知识可能是农民采用化感作用的障碍。进行了对农民领域的物理杂草采样的调查问卷调查，以研究2015/2016年生长至高粱{高粱双子（L.）Moench的田野中的杂草密度的农民知识，态度和实践2016/017在津巴布韦五区的生长季节。农民中的三分之一（29％）知道和患有高粱化感作用的良好增长。大约一半（49％）在收获后站立在地块中的一半（49％），后来犁过它们，而6％的切割并烧掉它们。先前和目前的季节高粱（P <0.05）均有显着（P <0.05）的ELeusine indica（L.）Gaertn的密度。，Bidens pilosa L.，Acanthospermum Hispidum DC和richardia scabra L.，表明高粱的化感作用可能是由剩余的和新鲜出汗的异位化学。伴随着由种植者感染的五种品种被罗酮含量评估了种植者。五种品种中的Sorgoleone生产有显着（P <0.001）次数。在一些品种中检测非常低水平的索勒酮表明，除了索兰酮之外的化合物有助于疑似化感受作用。

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