Scholarlink

<p>Although direct seawater irrigation remains utopian, the use of brackish water has the potential to stimulate crop production under arid conditions, such as those in Namibia. Our study evaluated the potential of a seawater—freshwater mixture for tomato drip irrigation under manure and plastic mulch inclusion in aeolian desert soils. The inclusion of seawater up to 20% (v/v) did not significantly (<i>P</i> &gt; 0.05) influence tomato plant biomass, although it significantly influenced tomato fresh yield. Across all treatments, the 20% seawater inclusion level resulted in a total yield of 2496&#xa0;g, whereas 0% had a total fruit yield of 6910&#xa0;g per plant. Manure addition resulted in a 29.58% difference in tomato yield between the manure-added and no-manure-added treatments. The addition of manure resulted in a 29.24% difference in marketable tomato yield compared with the case where manure was not added. Across all treatments, the inclusion of 20% seawater resulted in a 33.8% yield loss, whereas the inclusion of 0% seawater resulted in a 20.2% yield loss, when calculated as a fraction of the total yield obtained. Generally, the 0% (without seawater) had the lowest chlorophyll content (21.5), whereas the 20% seawater inclusion had the highest chlorophyll content (24.9). Similarly, the 20% seawater inclusion level resulted in a sugar content of 7.64, which was a 39.9% difference from the 0% seawater inclusion level with a sugar content of 5.1. Our study demonstrated the feasibility of using abundant saline water in arid countries for irrigation of tomatoes, which has the potential to generate tomatoes with higher sugar content, which is desirable for tomato processing markets. Further studies are needed to evaluate the use of saline water with other crops, such as Swiss chard, as part of climate smart cropping systems.</p>

错误：搜索内容不能为空，请输入英文关键词
错误：关键词超出字数限制，请精简
高级检索

Effect of consumptive use of saline and fresh water on yield, chlorophyll content and fruit quality of tomato (Solanum lycopersicum) in Namib Desert coastal aeolian soil

  • 期刊论文

  • 出版模式：

    开放获取

  • 发表日期：

    2025年3月20日

查看全文
  • Hupenyu Allan Mupambwa,
  • Bethold Handura,
  • Veronica A. Howoses,
  • Martha K. Hausiku-Ikechukwu

摘要

Although direct seawater irrigation remains utopian, the use of brackish water has the potential to stimulate crop production under arid conditions, such as those in Namibia. Our study evaluated the potential of a seawater—freshwater mixture for tomato drip irrigation under manure and plastic mulch inclusion in aeolian desert soils. The inclusion of seawater up to 20% (v/v) did not significantly (P > 0.05) influence tomato plant biomass, although it significantly influenced tomato fresh yield. Across all treatments, the 20% seawater inclusion level resulted in a total yield of 2496 g, whereas 0% had a total fruit yield of 6910 g per plant. Manure addition resulted in a 29.58% difference in tomato yield between the manure-added and no-manure-added treatments. The addition of manure resulted in a 29.24% difference in marketable tomato yield compared with the case where manure was not added. Across all treatments, the inclusion of 20% seawater resulted in a 33.8% yield loss, whereas the inclusion of 0% seawater resulted in a 20.2% yield loss, when calculated as a fraction of the total yield obtained. Generally, the 0% (without seawater) had the lowest chlorophyll content (21.5), whereas the 20% seawater inclusion had the highest chlorophyll content (24.9). Similarly, the 20% seawater inclusion level resulted in a sugar content of 7.64, which was a 39.9% difference from the 0% seawater inclusion level with a sugar content of 5.1. Our study demonstrated the feasibility of using abundant saline water in arid countries for irrigation of tomatoes, which has the potential to generate tomatoes with higher sugar content, which is desirable for tomato processing markets. Further studies are needed to evaluate the use of saline water with other crops, such as Swiss chard, as part of climate smart cropping systems.