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首页> 外文期刊>Open Journal of Applied Sciences >Soil and Land Suitability Assessment for Rice Cultivation at Tono Irrigation Area in the Upper East Region, Ghana
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Soil and Land Suitability Assessment for Rice Cultivation at Tono Irrigation Area in the Upper East Region, Ghana

机译：加纳上东地区吨灌区水稻种植土地和土地适应性评价

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摘要

Agriculture is one of the livelihood supports for the people of Upper East Region of Ghana. Soil evaluation research was conducted at Tono Irrigation Scheme to assess soil and land suitability for rice cultivation in the irrigable area of Tono Irrigation Scheme. A total of eleven (11) soil samples were collected and analysed for their chemical and physical properties. Based on field observation and criteria for soil suitability assessment , the different soil types that were identified were classified at the series level based on their position, parent material and the observed physical characteristics. The results indicated that the pH of the soils was within the acceptable range for crop production; however, the overall fertility level of the soils was very low. Physically, the upland soils were well to moderately well-drained, consisting of coarse-grained sandy loams topsoil overlying similar sandy loams and sandy clay loams at depth. They included Leptosols and Lixisols. The soils of the Scheme under lowlands and valley bottom sites, however, included Eutric Gleysol, Calsic Vertisol, Eutric Fluvisol and Eutric Plinthosol, which were heavily textured and relatively poor drained, or medium-textured and moderately to imperfectly well-drained. They showed a low to a very low rate of water percolation losses, which is good for the current farming system of cropping rice within the lowlands and valley bottom sites of the Scheme.
机译：农业是加纳上东部地区人民的生计支持之一。土壤评价研究是在Tono灌溉方案进行的，以评估水稻灌溉计划中水稻栽培土壤和土地适宜性。收集11个（11）个土壤样品并分析其化学和物理性质。基于现场观察和土壤适宜性评估标准，基于其位置，母体材料和观察到的物理特征，鉴定的不同土壤类型分类。结果表明，土壤的pH在作物生产的可接受范围内;然而，土壤的整体生育水平非常低。物理上，旱地土壤对中度排水良好，由粗粒砂泥壤土，覆盖着类似的沙壤土和砂质粘土壤土。它们包括乳清醇和丽霞。然而，低地和谷底位点下的该方案的土壤包括富含葡萄酒灵长糖糖醇，奶粉，富含氟酚和富核润滑油，其严重纹理且带有相对较差的排水，或中纹理，适度地耗尽不完全良好。它们表现出极低的水渗透损失率，这对于当前在该方案的低地和谷底部地点的种植水稻的当前农业系统有益。

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