Search Results (533)

The inefficient irrigation strategy is an important factor affecting the yield and water productivity of tomatoes in greenhouses, seriously hindering the development of the cultivation industry. While the impact of irrigation level on tomato growth and yield has been extensively studied, irrigation interval, another crucial component of irrigation schedule, as well as their interaction, remain poorly explored. There were four irrigation levels (W1: 125% ET_c, W2: 100% ET_c, W3: 75% ET_c, and W4: 50% ET_c; ET_c represented crop evapotranspiration) and three irrigation intervals (D1: 4-day interval, D2: 7-day interval, and D3: 10-day interval), aiming to explore the effects of different irrigation intervals and levels on the performance of tomatoes. Here, we showed that the moderate increases in irrigation level and interval promoted root growth, improved nitrogen uptake and distribution, and enhanced plant height, stem diameter, leaf area index, and aboveground biomass, thereby promoting the net photosynthetic rate of plants and fruit yield. The fruit quality indicators of total soluble solids, vitamin C, and soluble sugar decreased with increasing irrigation level but increased with decreasing irrigation interval. Higher irrigation levels increased tomato water consumption and resulted in lower water-nitrogen use efficiency. Overall, compared with W2D2 and W2D3, the yield of W2D1 increased by 8.0% and 26.1%, respectively, and the water productivity increased by 5.7% and 19.3%, respectively, and the soluble sugar increased by 7.1% and 17.5%, respectively. In addition, nitrogen uptake in tomato organs increased and then decreased with the increase of irrigation level, while it consistently increased with decreasing irrigation interval. At the harvest period, the nitrogen uptake in plant organs followed the order of fruit > leaf > stem. Taken together, W2D1 (100% ET_c and 4-day interval) is the recommended irrigation strategy for this experiment, which can provide a theoretical basis and technical support for the sustainable production strategy of greenhouse drip irrigation tomatoes. Full article

This study evaluated the impact of different drying methods on the physicochemical, microbiological, and sensory qualities of coffees produced in the Campos das Vertentes (CV) and Alta Mogiana (AM) regions of Brazil. The sun-drying (S), sun-drying combined with rotary mechanical dryer (SM), and CoffeeDryer^® mechanical dryer (C) methods were compared at different harvest times for the same crop (2024). The results indicated that CoffeeDryer^® preserved relatively high levels of phenolic compounds and antioxidant activity, reaching 3.24 g of gallic acid equivalents per 100 g (g EAG·100 g⁻¹) and 47.96% antioxidant protection in the coffees produced in Alta Mogiana, whereas the sun-dried coffees presented relatively low values (2.20 g EAG·100 g⁻¹ and 28.96% protection). In the Campos das Vertentes region, C maintained 2.78 g EAG·100 g⁻¹ phenolic compounds and 50.29% antioxidant protection, outperforming combined drying (2.48 g EAG·100 g⁻¹ and 41.17%). Regardless of the region and time of harvest, the coffees dried by C had a water activity of less than 0.6 and more stable moisture content (7.73–10.42%), reducing the possibility of proliferation of filamentous fungi and, consequently, mycotoxins. In the sensory evaluation, CoffeeDryer^® guaranteed higher scores for fragrance/aroma and flavor, allowing the coffees to reach 80 to 81 points on the SCA scale, which is classified as special. Thus, the use of CoffeeDryer^® proved to be an efficient alternative for optimizing coffee drying, preserving its chemical and microbiological qualities, and enhancing its commercial and sensory value. Full article

Water scarcity in Chile, particularly in the Mediterranean region, has been exacerbated by prolonged drought and climate change. Rainwater harvesting systems (RHS) have emerged as viable solutions for addressing water shortages, particularly for agricultural irrigation and aquifer recharge. This study evaluated the implementation and efficiency of RHS in rural areas of the Biobío Region, Chile, through the design and construction of two pilot systems in Arauco and Florida. These systems were assessed based on their water collection capacity, storage efficiency, and monitoring of water level variations in wells after rainwater incorporation, using depth probes to quantify stored volumes. The hydrological design incorporated site-specific precipitation analyses, runoff coefficients, and catchment area dimensions, estimating annual precipitation of 861 mm/year for Arauco and 611 mm/year for Florida. The RHS Arauco collected and stored 40 m³ of rainwater in a flexible tank, while RHS Florida stored 10 m³ in a polyethylene tank, demonstrating the effectiveness of the system. Additionally, we analyzed the economic feasibility and quality of harvested rainwater, ensuring its suitability for agricultural use according to Chilean regulations. The cost-effectiveness analysis indicated that the cost of stored water was $263.51 USD/m³ for Arauco and $841.07 USD/m³ for Florida, highlighting larger systems are more cost-effective owing to economies of scale. The Net Present Value (NPV) was calculated using a discount rate of 6% and a useful life of 10 years, yielding CLP $9,564,745 ($10,812.7 USD) for the Florida and CLP $2,216,616 ($2505.8 USD) for the Arauco site. The results indicate that both projects are financially viable and highly profitable, offering rapid payback periods and sustainable long-term benefits. RHS significantly contributes to water availability during the dry season, reducing dependence on conventional water sources and enhancing agricultural sustainability. Based on the evaluation of the cost–benefit, water availability, and infrastructure adaptability, we infer the feasibility of large-scale implementation at locations with similar characteristics. These findings support the role of RHS in sustainable water resource management and strengthening rural resilience to climate variability, highlighting their potential as an adaptation strategy to climate change in water-scarce Mediterranean regions. Full article

Cold storage of pelargonium cuttings addresses the issue of nonoverlapping production seasons in Central Europe, where cuttings are harvested from stock plants in December, but rooting begins in mid-February/March. Here, we show an innovative system for cuttings storage using nature-based solutions. We compared post-delivery storage of unrooted cuttings in paperpots maintained in greenhouses (8/6 °C day/night) to standard rooting immediately after delivery. Key factors included genotype (Pelargonium zonale, P. peltatum, and hybrids), four delivery weeks (48–51), two growing seasons (2021 and 2022), and storage duration (up to 4 weeks). Genotype strongly influenced cold storage tolerance, with P. peltatum enduring storage for up to 4 weeks without significant loss of rooting efficiency, unlike P. zonale. The success of storage depended on stock plants’ quality and nutritional status: higher nitrogen content in 2022 cuttings compared to 2021 was associated with reduced rooting in P. zonale and hybrids. Neither delivery timing nor residual ethephon affected rooting outcomes after storage. This study demonstrates that storing pelargonium cuttings for up to two weeks using this method preserves quality while optimizing production efficiency by reducing nursery space, water, fertilizer, and pesticide use. This shift in production practices reduces per-unit costs and enhances the economic viability of bedding young plant producers. Full article

Antibiotic-based wastewaters seriously endanger human health and damage the ecological environment, and photocatalytic degradation is a desirable strategy for eliminating these contaminants in water. Therefore, developing a proper catalyst for the photodegradation of antibiotics, including ciprofloxacin (CIP), is of great importance. In this study, novel Ag₂S/Zn²⁺-decorated graphitic carbon nitride (AZCN for short) type-II heterojunctions are constructed through a precipitation–calcination procedure. The high porosity with a specific surface area of 133.5 m² g⁻¹, as well as the positive synergy between Ag₂S- and Zn²⁺-decorated graphitic carbon nitride (abbreviated as ZCN), enhance incident light harvesting, increase the adsorption capacity for reactant molecules, favor mass transfer and promote the separation and transport of photoinduced carriers, therefore improving the degradation efficiency of CIP. Specifically, the degradation efficiency of CIP (50 mL, 10 mg L⁻¹) over 2.5% AZCN (10 mg) is 18.1%, 43.1% and 55.7% within 60 min of irradiation using near-infrared light, visible light and simulated solar light, respectively. Moreover, it displays satisfactory recycling stability and excellent universality. This research not only develops a promising heterojunction photocatalyst but also offers some valuable insights in water remediation. Full article

Alternative adsorbent materials containing natural fibers are a research topic that has garnered increasing attention, with greater relevance when they come from agro-waste. The removal of contaminants, such as dyes, by adsorption methods has been a low-cost alternative to these materials that impedes the adverse effects of water pollution. This study proposes the preparation of an environmentally sustainable material with an excellent reduction in production costs, based on the manufacturing of polyurethane foam composites containing natural fibers from agro-industrial waste. The foam was synthesized by partially replacing the conventional polyol used in polyurethane foams with corn straw fibers, to form a composite material. The composites were prepared according to a statistical design, and the responses were evaluated using Version 13 of Design Expert^® software. The composite samples were characterized by mechanical tests which were performed to determine the resilience, Young’s modulus, and permanent compression, and the morphological properties were analyzed using scanning electron microscopy techniques. To solve environmental problems in the textile and paper industries, such as water pollution, the composite material was evaluated physico-chemically for its application as an adsorbent for dyes, the main cause of ecological imbalance—specifically methylene blue cationic (MB), and Congo red anionic (CR). Owing to their high efficiency in dye removal, the corn straw fibers inserted in the composite proved to be a good sustainable adsorbent with improved mechanical characteristics, making this a project that directly contributes to the sustainable development goal (SDG) #6—drinking water and sanitation; it is a low-cost, high-quality synthesized material from post-harvest waste, and it can be reused after use in wastewater treatment in construction, scientifically contributing to SDGs 12, 14, and 15. Full article

Pearl millet is a cereal crop vital for food security in Africa and Asia. It is widely adapted for dual-purpose production, providing grain for human consumption and fodder for livestock, particularly during dry seasons. This study aimed to evaluate three dual-purpose pearl millet genotypes from Namibia and South Africa while exploring prospects for future production practices. Growth analysis is essential for quantitatively assessing crop growth, development, and production. A growth analysis study was conducted by collecting and evaluating weather data, water use efficiency, and crop growth parameters that are valuable for modelling, allowing for observing and quantifying strengths and weaknesses between varieties for food and fodder or as dual-purpose varieties. The analysis focused on water use, plant height, fractional radiation interception, panicle number, tiller number, flowering date, stem diameter, panicle length, dry matter distribution, harvest index, grain yield, and panicle diameter, under well-watered, supplementary irrigation, and rainfed conditions. The landrace achieved a higher yield under well-watered conditions than the hybrid and improved varieties. The hybrid pearl millet produced a greater fodder yield than the improved short variety in well-watered and water-limited treatments. The improved variety suits grain production, whereas the landrace and hybrid are more suitable for dual-purpose production. The landrace performed well in rainfed and irrigated situations across the three seasons. The landrace (Kantana) recorded the highest grain yield (1.01 kg m⁻²), followed by the hybrid (Agrigreen) (0.97 kg m⁻²), while the improved variety (Kangara) had the lowest grain yield (0.74 kg m⁻²). Full article

Indoor farming in plant factories with artificial lighting (PFAL) offers optimized growing conditions and higher water, light, and land surface use efficiencies compared to greenhouses or open field agriculture but faces challenges related to energy consumption. The objective of this work is to evaluate the feasibility of using a rotational cultivation system for indoor-grown lettuce production. We compare a rotational cultivation system to a horizontal control cultivation system in terms of yields, resource efficiency, quality at harvest, and postharvest storage capacity. No significant differences were observed in yields, water use efficiency, light use efficiency, or postharvest storage capacity between the systems. Energy and land surface use efficiencies were higher in the rotational cultivation system compared to the control and consistent with the literature. However, a slight trend toward lower fresh and dry weights throughout the cultivation period in the rotational system was noted, correlating with reduced net photosynthesis during the first two hours and at the end of the lighting period. This effect was attributed to decreased stomatal conductance and photosystem II efficiency. Furthermore, the rotational cultivation system modified the quality by modifying the global polyphenol profile of the lettuce compared to the control. Based on yields and efficiencies, we show the feasibility of using a rotational cultivation system for indoor lettuce production. Full article

Mountain ecosystems play a crucial role in providing ecosystem services, with some of the most important being carbon sequestration, biodiversity conservation, land protection, and water source preservation. Additionally, timber harvesting in these regions presents significant environmental, economic, and social challenges. This study provides a comprehensive bibliometric and systematic analysis of publications on timber harvesting in mountainous areas, examining the current state, global trends, key contributors, and the impact of forestry operations. A total of 357 publications on timber harvesting in mountainous areas have been identified, spanning from 1983 to 2024. These publications predominantly originate from the USA, Canada, Australia, and China, with additional contributions from European institutions. The research is published in leading forestry, ecology, and environmental science journals, highlighting its global impact. This study provides an in-depth bibliometric and systematic analysis, assessing research trends, key contributors, and their influence on scientific advancements in sustainable forestry and ecological conservation. These articles belong to the scientific fields of Environmental Science and Ecology, Forestry, Zoology, and Biodiversity Conservation, among others. They have been published in numerous journals, with the most frequently cited ones being Forest Ecology and Management, Journal of Wildlife Management, and Forests. The most frequently used keywords include dynamics, management, and timber harvest. The analysis of publications on timber harvesting in mountainous areas highlights the widespread use of primary harvesting methods, the negative effects of logging activities on soil, forest regeneration processes, and wildlife populations, as well as the role of advanced technologies in improving harvesting efficiency. While sustainable management practices, such as selective cutting and low-impact harvesting techniques, can mitigate some negative effects, concerns remain regarding soil erosion, habitat alteration, and carbon emissions. This analysis underscores the need for flexible forest management strategies that balance economic efficiency with ecological sustainability. Future research should focus on innovative harvesting techniques, adaptation measures to terrain and climate conditions, and the long-term impact of forestry activities on mountain ecosystems. Full article

In the Sahel, ensuring food security remains a critical challenge due to the region’s prolonged nine-month dry season and the severe scarcity of water resources for irrigation. This study explores an innovative approach integrating two traditional Sahelian soil conservation methods (Zaï and Half-moon) with controlled irrigation to enhance dry-season crop yields, methods not previously explored in combination. A field experiment was performed using a randomized Fisher block design with seven replications assessing the impact of different soil practices on onion and jute production. It also examined the key soil elements and dynamic properties, including N, P, K, pH, temperature, and electrical conductivity. Results showed that the Half-moon technique yields the highest onion production (20.1 t ha⁻¹ ± 0.82), followed by Zaï (18.6 t ha⁻¹ ± 0.48) and flat tillage (14.2 t ha⁻¹ ± 0.84). For jute, the highest third-harvest yield was recorded with Half-moon (9.68 t ha⁻¹ ± 0.63), followed by Zaï (9.56 t ha⁻¹ ± 0.48) and flat tillage (7.53 t ha⁻¹ ± 0.37). These findings offer a viable solution for adapting to climate change by improving water use efficiency and promoting sustainable farming practices in water-limited environments. This research underscores the potential for integrating indigenous knowledge with modern agricultural techniques to mitigate food insecurity in the Sahel. Full article

Nitrogen (N) fertilizer application is one of the most crucial agronomic management practices for increasing grain yield in maize crops. However, the long application may adversely affect soil quality. For achieving sustainable agricultural production, the current research set out to evaluate the short-term effects of the addition of zeolite as a soil amendment and N fertilization on the maize growth, yield, quality, N- and water-use efficiency in three locations (Athens, Messolonghi, and Karditsa) in Greece. Each experiment set up during the spring–summer 2024 cultivation period was laid out in a split-plot design with three main plots (Zeolite treatments: 0, 5, and 7.5 t ha⁻¹) and four sub-plots (N fertilization treatments: 0, 100, 150, and 200 kg N ha⁻¹). The results revealed that increasing the zeolite application rate from 0 to 7.5 t ha⁻¹ led to a significant increase in grain yield, with the highest value (13.46, 12.46, and 14.83 t ha⁻¹ in Athens, Messolonghi, and Karditsa, respectively) observed at 7.5 t ha⁻¹. In the same manner, the increasing inorganic N fertilization rate from 0 to 200 kg N ha⁻¹, also increased the grain yield. In general, most of the soil properties (soil organic matter, soil total nitrogen, total porosity, soil moisture content, and infiltration rate), root and shoot growth (root length density, plant height, leaf area index and dry weight), N content and uptake of the grains, and aerial biomass, as well as, thousand kernel weight, N harvest index (NHI), and water use efficiency (WUE), were positively affected by both of the examined factors. In conclusion, this study proved that the increasing rates of zeolite as a soil amendment and N fertilization up to a rate of 7.5 t ha⁻¹ and 200 kg N ha⁻¹, respectively, improved soil properties, promoted plant development, and increased grain yield, grain and biomass N uptake, NHI, and WUE of the maize crop cultivated in clay–loam soils and under Mediterranean conditions, where the experimental trials set up. Full article

Black soybeans are rich in beneficial substances like anthocyanins, which help combat free radicals, and also have a high protein content. However, the soybean production system in Thailand struggles with issues relating to the use of machinery for harvesting. For efficient harvesting with machinery, the first pod of the soybean cultivar should be positioned at a height greater than 10 cm. Thailand has not yet reported black soybean cultivars with the height of the first pod measuring 10–15 cm above the ground. Therefore, the aim of this experiment was to improve the commercial soybean varieties KKU35, SJ5, NSW1, and CM60 in Thailand by increasing their first pod height and developing black grains through crossbreeding with the KKUSB–108 soybean germplasm. Subsequently, the pedigree selection method was used to evaluate and select plants with black grains, good growth performance, and a first pod height exceeding 10 cm from the F₂ to F₅ generations. The selected line of F₅ was selected, while the grains of the F₆ generation were designated as recombinant inbred lines (RILs). Eight soybean RILs, namely KKU35xKKUSB–108–12–4–3, KKU35xKKUSB–108–24–5–7, SJ5xKKUSB–108–25–2–1, SJ5xKKUSB–108–30–3–7, NSW1xKKUSB–108–49–3–3, NSW1xKKUSB–108–49–3–6, CM60xKKUSB–108–41–1–7, and CM60xKKUSB–108–64–4–8, together with the Sukhothai 3 black soybean commercial variety, were laid out in a randomized complete block design (RCBD) with three replications at the Agronomy Field Crop Station, Khon Kaen University, over two seasons: the rainy season in 2021 and the dry season in 2022. The results revealed that the first pod height of all RILs in the rainy and dry seasons was higher than Sukhothai 3. The RILs showing a consistently high yield in both the rainy and dry seasons were SJ5xKKUSB-108-25-2-1 (1.85 and 1.86 T/ha), SJ5xKKUSB-108-30-3-7 (1.65 and 1.72 T/ha), NSW1xKKUSB-108-49-3-6 (1.52 and 1.83 T/ha), and CM60xKKUSB-108-64-4-8 (1.60 and 1.61 T/ha). Moreover, the RIL, NSW1xKKUSB-108-49-3-6, has a protein content of up to 44.21% in the dry season and shorter maturity than other RILs. This RIL can be used for cropping rotation systems in areas with limited time and water resources. This work provides a resource of black soybean RILs with high yield and first pod height for soybean breeding programs in the future. However, yield and protein content were affected by season (S), genotype (G), and the S × G interaction, indicating that RILs require a diverse environment for regional yield trials in the future. Full article

Chronic overapplication of inorganic fertilizers decreases crop yields and water use efficiency (WUE). This study aimed to assess the impact of substituting inorganic fertilizer with nitrogen supplied from maize stover (S) on soil physical properties, WUE, maize yield, and economic benefits. The treatments were the replacement of 0% (full rate of inorganic fertilizer, FF), 25% (S₂₅), 50% (S₅₀), 75% (S₇₅), and 100% (S₁₀₀) of the standard rate of 225 kg ha⁻¹ inorganic nitrogen fertilizer with equal amounts of maize stover nitrogen fertilizer. From 2016 to 2019, the experiment was performed on the Loess Plateau in China. S₁₀₀ notably reduced soil bulk density by 6.11% relative to FF in the fourth year (p ≤ 0.05). Replacement treatments (S₂₅, S₅₀, S₇₅, and S₁₀₀) increased soil water storage following maize harvest, enhanced net benefits over four years, and significantly reduced evapotranspiration by 5.69–11.08% in the first three years (p ≤ 0.05). The maize yield of the alternative treatments was found to be significantly greater than that of FF by 7.76–18.30% in the fourth year (p ≤ 0.05). With the increasing straw application rate, soil moisture and maize yield decreased, whereas evapotranspiration and net benefits increased. In the principal component analysis, S₂₅ was found to have the highest comprehensive evaluation score. Therefore, the S₂₅ treatment was the optimal fertilization pattern. Full article

Freshwater resources that humans can use directly account for 2.5 percent. Fog collection from the atmosphere is an eco-friendly and potential solution to the water shortage crisis. This study presents a biomimetic approach to fog collection inspired by the Namib Desert beetle and cacti. Using fused deposition modeling (FDM) 3D printing and atmospheric pressure plasma (APP) treatment, we fabricated hybrid wettability surfaces combining hydrophobic polypropylene (PP) and super hydrophilic polycarbonate (PC). These surfaces significantly improved fog collection efficiency, achieving 366.2 g/m²/h rates by leveraging the Laplace pressure gradient and hybrid wettability gradient. This work provides an efficient and effective methodology to fabricate hybrid wetting surfaces and can be potentially applied to fog harvesting and microfluidic devices. Full article

Zanthoxylum planispinum var. Dingtanensis (hereafter Z. planispinum) has excellent characteristics, including Ca and drought tolerance. It can flourish in stony soils, and it is used as a pioneer plant in karst rocky desertification control. However, soil degradation, coupled with the removal of nutrients absorbed from the soil by Z. planispinum’s fruit harvesting, exacerbates nutrient deficiency. The effects of fertilization on soil nutrient utilization and microbial limiting factors remain unclear. Here, we established a long-term (3 year) field experiment of no fertilization (CK), organic fertilizer + chemical fertilizer + sprinkler irrigation (T1), chemical fertilizer + sprinkler irrigation (T2), chemical fertilizer treatment (T3), and leguminous (soybean) + chemical fertilizer + sprinkler irrigation (T4). Our findings indicate that fertilization significantly improved the nutrient uptake efficiency of Z. planispinum, and it also enhanced urease activity compared with CK. T1 increased soil respiration and improved water transport, and the soil nutrient content retained in T1 was relatively high. It delayed the mineralization rate of organic matter, promoted nutrient balance, and enhanced enzyme activity related to the carbon and nitrogen cycle. T4 caused soil acidification, reducing the activity of peroxidase (POD) and polyphenol oxidase (PPO). The soil microbial community in the Z. planispinum plantation was limited by carbon and phosphorus, and T1 mitigated this limitation. This study indicated that soil nutrient content regulated enzymatic activity by influencing microbial resource limitation, with organic carbon being the dominant factor. Overall, we recommend T1 as the optimal fertilization strategy for Z. planispinum plantations. Full article