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首页> 外文期刊>Journal of Natural Sciences Research >Validation of Best Practice for Barley Production on Acid Soils of Central and Western Highland of Ethiopia: Effect of Liming on Ameliorating Soil Acidity and Soil P - Availability
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Validation of Best Practice for Barley Production on Acid Soils of Central and Western Highland of Ethiopia: Effect of Liming on Ameliorating Soil Acidity and Soil P - Availability

机译：埃塞俄比亚中西部高地酸性土壤上大麦生产最佳实践的验证：石灰对改善土壤酸度和土壤磷素有效性的影响

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A field experiment was conducted during 2018 cropping season at two locations (Welmera and Jeldu) in the central and western part of Ethiopia to verify the effect of lime in ameliorating soil acidity, P availability and barley productivity. Two barley production practices: 1.5 * EA (t/ha) of lime with 69 kg/ha P 2 O 5 and a farmer’s practice with no lime as a control were tested using a two plot design approach with 9 replication using farmers as replicates. Laboratory soil analytical results of both study areas showed that the soils are strongly acidic in reaction with low P content. Application of lime resulted in significant changes in some chemical properties of the soils in both locations. Soil acidity components such as soil pH, Exchangeable acidity, and Exchangeable Al were improved due to the application of lime and maximum and minimum values of these parameters were recorded. Availability of P, growth parameters, yield and yield components were significantly increased with application of lime at the two locations. Dry biomass weight increment up to 79.4% and grain yield advantage of 40% was recorded due to liming at Rob Gebeya kebele of welmera district. Similarly, 233%, 205% and 17.3% rise was observed in dry biomass, grain yield and 1000 seed weight over the conventional farmer’s practice/control/ respectively at Ento dale and shikute kebele of Jeldu district. According to the result of the current study, application of lime to acid soils led to slightly higher pH, significant decrease in Exchangeable acidity and a marked development in available soil phosphorus level as related to the non amended soil confirming and demonstrating the fact that applying lime in acidic soil maximize the availability of nutrients especially phosphorus in the soil which is very important for better performance of crops.
机译：在2018年种植季节期间，在埃塞俄比亚中部和西部的两个地点（韦尔梅拉和耶尔杜）进行了田间试验，以验证石灰对改善土壤酸度，磷素有效性和大麦生产力的影响。两种大麦生产实践：使用两个样地设计方法，以9个复制品（使用复制品），测试了1.5 EA（吨/公顷）的石灰和69 kg / ha P 2 O 5以及不使用石灰作为对照的农民的生产方式。两个研究区域的实验室土壤分析结果表明，土壤中的酸性高，磷含量低。石灰的施用导致两个地点土壤的某些化学性质发生了显着变化。由于施用了石灰，土壤酸度成分（例如土壤pH值，可交换酸度和可交换Al）得到了改善，并记录了这些参数的最大值和最小值。在这两个地方施用石灰可显着提高磷的有效性，生长参数，产量和产量构成。在韦尔梅拉区的Rob Gebeya kebele，由于撒了石灰，干物质的重量增加了79.4％，谷物的增产优势达到了40％。同样，在耶尔杜区的恩托河谷和希库特凯贝勒，分别比常规农民的作法/控制/干燥的生物量，谷物产量和1000粒重增加了233％，205％和17.3％。根据当前研究的结果，与未修正的土壤有关，在酸性土壤上施用石灰会导致pH值略高，可交换酸度显着降低以及可利用的土壤磷水平显着增长，这证实并证明了施用石灰的事实。在酸性土壤中，最大程度地利用土壤中的养分尤其是磷，这对于提高农作物的生长性能非常重要。

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