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首页> 外文期刊>Research Journal of Soil Biology >Soil Fertility Restoration Potentials of Tithonia Green Manure and Water Hyacinth Compost on a Nutrient Depleted Soil in South Western Nigeria
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Soil Fertility Restoration Potentials of Tithonia Green Manure and Water Hyacinth Compost on a Nutrient Depleted Soil in South Western Nigeria

机译：尼日利亚西南部养分枯竭土壤上的二氧化钛绿肥和水葫芦堆肥的土壤肥力恢复潜力

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The study was conducted to investigate the influence of Tithonia diversifolia (Hemsley) A. Gray green manure and water hyacinth Eichhornia crassipes (Mart) Solms compost on a nutrient depleted soil-an Alfisol in South-Western Nigeria. The study was carried out at the Botany and Microbiology Department, University of Ibadan, Ibadan, Nigeria. The two different soil amendments in fresh green manure and compost forms respectively (apart from control) were used as treatments in the study. These were applied in sole applications as well as in varying combinations of the different treatments. The organic amendment treatments were compared to unfertilized control in a modified screen house experiment replicated 3 times in a Completely Randomized Design (CRD). The results showed that for all treatments used, Tithonia + Water hyacinth (T+WH) at various combination ratios of 0.5:0.5, 0.25:0.75 and 0.75:0.25 kg were most significant (p<0.05) for increase in status of macronutrient elements Ca, K, Na and P compared to control treatment in topsoil samples, In subsoil samples however, sole application of Tithonia green manure and water hyacinth compost at 1 kg each respectively showed greater significant values (p<0.05) for micronutrient elements Cu, Fe and Zn in amended soil samples compared to control. Of all soil parameters assayed in the study, both ECEC and pH status of amended soils were not significantly changed by treatments with regard to control. Nutrient elements uptake was also significant for maizebiomass samples of T+WH treatments in amended top and subsoil samples with regard to control. These observations indicate the high fertilizing potentials of the two organic soil amendments studied; with sound potential for building soil organic matter to adequate levels that will meet nutritional needs of crops as well as improve the nutrient element status of nutrient depleted soils into which such organic resources are incorporated.
机译：进行这项研究的目的是调查尼日利亚南部西南部的Tithonia diversifolia（Hemsley）A.灰绿肥和水葫芦Eichhornia crassipes（Mart）Solms堆肥对营养贫瘠的土壤-Alfisol的影响。该研究是在尼日利亚伊巴丹伊巴丹大学植物与微生物学系进行的。在研究中分别使用了两种不同的新鲜绿肥和堆肥形式的土壤改良剂（除对照外）。这些被应用于单独的应用以及不同处理的不同组合。在完全筛选设计（CRD）中重复3次的改良筛房实验中，将有机修饰剂处理与未受精对照进行了比较。结果表明，在所有使用的处理中，不同养分比例（0.5：0.5、0.25：0.75和0.75：0.25 kg）的硫脲+水葫芦（T + WH）对于增加大量营养元素的状态最为显着（p <0.05） Ca，K，Na和P与表土样品中的对照处理相比，然而，在地下土壤样品中，单独施用1 kg的Tithonia绿肥和水葫芦堆肥分别显示出微量营养元素Cu，Fe更高的显着性值（p <0.05）和对照土壤中的锌含量比较。在研究中测定的所有土壤参数中，经修正的土壤的ECEC和pH值状态均未因对照处理而明显改变。就对照而言，在修正的表层和下层土壤样品中，T + WH处理的玉米生物质样品的营养元素吸收也很重要。这些观察结果表明所研究的两种有机土壤改良剂的高施肥潜力。具有将土壤有机质建设到足以满足农作物营养需求的水平的良好潜力，并改善了将这些有机资源纳入其中的贫化土壤的营养元素状况。

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