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首页> 外文期刊>Agricultural Water Management >Sustainable cultivation under saline irrigation water: Alleviating salinity stress using different management treatments on Terminalia arjuna (Roxb.) Wight & Arn.
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Sustainable cultivation under saline irrigation water: Alleviating salinity stress using different management treatments on Terminalia arjuna (Roxb.) Wight & Arn.

机译：盐水灌溉水下可持续培养：使用不同的管理治疗对恒定arjuna（roxb。）的不同施用盐度胁迫。

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摘要

The use of saline water is one likely option for sustainable cultivation of ornamental plants, particularly in waterscarce regions. To assess the feasibility of sustainable cultivation under saline irrigation water (NaCl at 4000 ppm) in such regions, a field experiment was conducted at the nursery of the Ornamental Horticulture Department, Faculty of Agriculture, Cairo University, Egypt, during the seasons of 2015/2016 and 2016/2017, in which five different management treatments (humic acid, proline, gypsum, leaching, and magnetite) were studied to evaluate their effectiveness on alleviating adverse salinity effects on Terminalia arjuna (Roxb.) Wight & Arn. seedling growth, photosynthetic pigment concentration, and leaf chemical constituents. Generally, compared to seedlings irrigated with saline water, most of the treatments caused significant increases in plant height, number of leaves and main roots/plant, stem diameter, leaf area, fresh and dry weights of leaves and main stem and branches, as well as the concentrations of chlorophylls a and b, total carotenoids, N, P, K, Ca, and proline. Moreover, the parameters for treated plants receiving the different management treatments were close to those of plants irrigated with tap water. Na and Cl concentrations were significantly decreased by most of the treatments in comparison to saline water. The most beneficial treatment among all in reducing negative salinity impacts was humic acid, followed by proline, gypsum, leaching, and magnetite. The results of our study indicate positive effects of all treatments, which can be useful in counteracting the negative consequences of the irrigating with saline water. Such treatments, moreover, may prove to be promising approaches in confronting the challenge of achieving sustainable cultivation under saline irrigation water in arid and semi-arid regions.
机译：盐水的使用是一种可能选择可持续培养观赏植物的选择，特别是在水道地区。为了评估盐水灌溉水下可持续培养的可行性（在4000 ppm处为4000ppm），在埃及公园大学农业学院，埃及农业学院的观赏园艺厅托儿所进行了田间实验，在2015年/研究了2016年和2016/2017，其中研究了五种不同的管理治疗（腐殖酸，脯氨酸，石膏，浸出和磁铁矿），以评估它们对减轻终端arjuna（roxb。）的逆享盐度影响的有效性。幼苗生长，光合色素浓度和叶化学成分。一般来说，与盐水灌溉的幼苗相比，大多数治疗方法导致植物高度，叶子和主根部/植物，茎直径，叶面积，新鲜和干重的叶子和主干和枝条的大量治疗作为叶绿素A和B，总类胡萝卜素，N，P，K，Ca和脯氨酸的浓度。此外，接受不同管理治疗的治疗植物的参数接近自来水灌溉的植物。与盐水相比，大多数治疗方法显着降低Na和Cl浓度。在减少负盐度影响的最有益处理是腐殖酸，其次是脯氨酸，石膏，浸出和磁铁矿。我们的研究结果表明所有治疗的积极作用，这对于抵消灌溉的灌溉的负面后果可用于抵抗盐水的负面影响。此外，这种治疗可能被证明是面对在干旱和半干旱地区在盐水灌溉水下实现可持续培养的挑战的承诺方法。

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