Irrigation and Drainage最新文献

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Integrating farmers' knowledge with technology for sustainable irrigation management 将农民的知识与可持续灌溉管理技术相结合
IF 1.6 4区 农林科学
Irrigation and Drainage Pub Date : 2024-12-26 DOI: 10.1002/ird.3031
Anuj Kanwal
{"title":"Integrating farmers' knowledge with technology for sustainable irrigation management","authors":"Anuj Kanwal","doi":"10.1002/ird.3031","DOIUrl":"https://doi.org/10.1002/ird.3031","url":null,"abstract":"<p>This paper synthesizes the key discussions and insights from a special session held during the 25th International Congress on Irrigation and Drainage (ICID) in Vishakhapatnam, focusing on the integration of farmers' knowledge with technology through participatory approaches in Indian irrigation.</p>","PeriodicalId":14848,"journal":{"name":"Irrigation and Drainage","volume":"73 5","pages":"1885-1888"},"PeriodicalIF":1.6,"publicationDate":"2024-12-26","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143253365","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"农林科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 0
Impact of fish farm drainage water reuse for irrigation on barley yield and water productivity: Field study and simulation using the SALTMED model 养鱼场排水回用灌溉对大麦产量和水分生产力的影响:使用SALTMED模型的实地研究和模拟
IF 1.6 4区 农林科学
Irrigation and Drainage Pub Date : 2024-12-26 DOI: 10.1002/ird.3069
Somya Said Ahmed, Hoda Kamal Soussa, Nagy Ali Ali Hassan, Ramadan Eid Abdelraouf, Gehan Sallam, Ragab Ragab
{"title":"Impact of fish farm drainage water reuse for irrigation on barley yield and water productivity: Field study and simulation using the SALTMED model","authors":"Somya Said Ahmed,&nbsp;Hoda Kamal Soussa,&nbsp;Nagy Ali Ali Hassan,&nbsp;Ramadan Eid Abdelraouf,&nbsp;Gehan Sallam,&nbsp;Ragab Ragab","doi":"10.1002/ird.3069","DOIUrl":"https://doi.org/10.1002/ird.3069","url":null,"abstract":"<p>Countries such as Egypt, which are situated in semi-arid regions and have water constraints, primarily aim to repurpose unconventional water resources for irrigation. The aim of this research was to examine the feasibility and advantages of irrigating barley with fish farm drainage water (DWFF) rather than fresh irrigation water (IW). Four degrees of deficit irrigation [100% FI (full irrigation), 80% FI, 60% FI and 40% FI] were studied for the irrigation of barley via two types of water (DWFF and IW). The response of crops to a deficit irrigation approach involving the use of IW in the two seasons of 2020–2021 and 2021–2022 was demonstrated by the results. The yield of the barley produced with DWFF irrigation was greater than that produced with IW irrigation, ranging from 9% to 12% in 2020–2021 and from 9% to 13% in 2021–2022. This resulted from the higher concentration of dissolved biological nitrogen and other nutrients in DWFFs. There was a strong correlation between the observed and simulated crop yield values for both growing seasons, with <i>R</i><sup>2</sup> values of 0.963 and 0.960, respectively, for all the treatments. The SALTMED model was used to simulate the soil moisture content, water application efficiency, barley dry matter, yield and water productivity for all the treatments. The study concluded that DWFF is a useful irrigation substitute for IW. Higher yields were also attained with the use of less IW and chemical fertilisers because of the DWFF. In addition, there are other advantages, such as increasing farmer income and lowering discharge to the drainage network.</p>","PeriodicalId":14848,"journal":{"name":"Irrigation and Drainage","volume":"74 3","pages":"1031-1050"},"PeriodicalIF":1.6,"publicationDate":"2024-12-26","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144615473","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"农林科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 0
Assimilating vegetation indices and canopy cover derived from remote sensing into the AquaCrop model for estimating rice yield 将遥感得到的植被指数和冠层盖度同化到水稻产量估算的AquaCrop模型中
IF 1.6 4区 农林科学
Irrigation and Drainage Pub Date : 2024-12-24 DOI: 10.1002/ird.3068
Fatemeh Jafari Sayadi, Mohammad Ali Gholami Sefidkouhi, Hemmatollah Pirdashti, Mojtaba Khoshravesh
{"title":"Assimilating vegetation indices and canopy cover derived from remote sensing into the AquaCrop model for estimating rice yield","authors":"Fatemeh Jafari Sayadi,&nbsp;Mohammad Ali Gholami Sefidkouhi,&nbsp;Hemmatollah Pirdashti,&nbsp;Mojtaba Khoshravesh","doi":"10.1002/ird.3068","DOIUrl":"https://doi.org/10.1002/ird.3068","url":null,"abstract":"&lt;p&gt;Accurate forecasting of rice yield using contemporary data is a paramount management tool. To achieve this objective, the AquaCrop, in conjunction with remote sensing (RS) data, was employed to predict yield in the paddy fields of SANRU. The required AquaCrop data, including ground (200 locations) and RS (Sentinel-2, MODIS) data, were collected in two seasons, namely, 2020 and 2021. Leveraging Sentinel-2 imagery, various vegetation indices (VIs) were computed, encompassing the normalized difference vegetation index (NDVI), rice growth vegetation index (RGVI) and soil adjusted vegetation index (SAVI). Additionally, MODIS and spatio-temporal fusion algorithms (Spatial and Temporal Adaptive Reflectance Fusion Model [STARFM] and Enhanced Spatial and Temporal Adaptive Reflectance Fusion Model [ESTARFM]) were used to create a regular time pattern in satellite images taken on cloudy days. The results revealed that the yields observed for 2020 and 2021, on the basis of field data, were 4450 and 4370 kg/ha, respectively. Moreover, by leveraging the AquaCrop, the forecasted yield was ascertained both with and without the assimilation of RS data. Notably, the findings underscored that the incorporation of RS data significantly enhanced the model's predictive precision, particularly in estimating yield. The model's efficacy was demonstrated by its ability to forecast the end-of-season yield for the years 2020 and 2021, which yielded maximum RMSEs of 400 and 470 kg/ha, respectively.&lt;/p&gt;&lt;p&gt;RésuméLa prévision précise du rendement du riz à l'aide de données contemporaines est un outil de gestion primordial. Pour atteindre cet objectif, l'AquaCrop, en collaboration avec les données de télédétection (RS), a été utilisé pour prédire le rendement dans les rizières du SANRU. Les données AquaCrop requises, y compris les données au sol (200 emplacements) et les données de télédétection (Sentinel-2, MODIS), ont été recueillies en deux saisons, soit 2020 et 2021. À partir de l'imagerie Sentinel-2, divers indices de végétation (VI) ont été calculés, comprenant l'indice de végétation par différence normalisée (NDVI), l'indice de végétation de croissance du riz (RGVI) et l'indice de végétation ajusté au sol (SAVI). De plus, les algorithmes MODIS et de fusion spatio-temporelle (STARFM et ESTARFM) ont été utilisés pour créer un schéma temporel régulier des images satellites prises par temps nuageux. Les résultats ont révélé que les rendements observés pour 2020 et 2021, sur la base des données recueillies sur le terrain, étaient respectivement de 4,450 et 4,370 kg/ha. De plus, en tirant parti de l'AquaCrop, le rendement prévu a été déterminé à la fois avec et sans l'assimilation des données de télédétection. Les résultats ont notamment souligné que l'intégration des données issues de la télédétection a considérablement amélioré la précision prédictive du modèle, en particulier pour l'estimation du rendement. L'efficacité du modèle a été démontrée par sa capacité à prévoir ","PeriodicalId":14848,"journal":{"name":"Irrigation and Drainage","volume":"74 3","pages":"1311-1325"},"PeriodicalIF":1.6,"publicationDate":"2024-12-24","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144615509","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"农林科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 0
Leveraging improved efficiencies for extending availability of agricultural water 利用提高的效率扩大农业用水的可用性
IF 1.6 4区 农林科学
Irrigation and Drainage Pub Date : 2024-12-10 DOI: 10.1002/ird.3067
Ashwin B. Pandya
{"title":"Leveraging improved efficiencies for extending availability of agricultural water","authors":"Ashwin B. Pandya","doi":"10.1002/ird.3067","DOIUrl":"https://doi.org/10.1002/ird.3067","url":null,"abstract":"","PeriodicalId":14848,"journal":{"name":"Irrigation and Drainage","volume":"73 5","pages":"1924-1925"},"PeriodicalIF":1.6,"publicationDate":"2024-12-10","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143248337","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"农林科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 0
Transformation in the vernacular landscape of the Chatan weir irrigation area, China 察滩堰灌区乡土景观的改造
IF 1.6 4区 农林科学
Irrigation and Drainage Pub Date : 2024-12-05 DOI: 10.1002/ird.3065
Xukun Zhang, Changjian San, Li He
{"title":"Transformation in the vernacular landscape of the Chatan weir irrigation area, China","authors":"Xukun Zhang,&nbsp;Changjian San,&nbsp;Li He","doi":"10.1002/ird.3065","DOIUrl":"https://doi.org/10.1002/ird.3065","url":null,"abstract":"<p>One of the most fascinating aspects of irrigation is the close connection between settlement networks and agricultural activities, with water infrastructure serving as the conduit. In particular, irrigation engineering serves as a testament to the evolution and development of local vernacular landscapes, exerting a profound influence on their formation. However, the contribution of irrigation to the development of the vernacular landscape and its internal interactions are poorly understood. This study aims to highlight the relationship between historical hydraulic systems and local landscapes, with a focus on the Chatan Weir Water Conservancy Project, an ancient irrigation engineering system in China. On the basis of archival records, historical materials and observations, this study constructed an analytical framework to analyse how the local landscape changed from 943 to the present. Specifically, this study delved into the evolution of water conservancy, farmland, settlement landscapes and their interactions in the Chatan weir irrigation area. The findings revealed that the local landscape of the Chatan weir irrigation area consists of a collection of landscapes created by residents through a bottom-up approach. Furthermore, the water conservancy system has provided a stable water supply for both agricultural production and residential livelihoods, which has also shaped the spatial patterns of farmland and settlement landscapes. Finally, clan relations and rural management have played a vital role in the sustainability of the analysed irrigation system. The results of this study can provide insights into the sustainable coexistence of political and local landscapes.</p>","PeriodicalId":14848,"journal":{"name":"Irrigation and Drainage","volume":"74 3","pages":"1338-1353"},"PeriodicalIF":1.6,"publicationDate":"2024-12-05","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144615413","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"农林科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 0
Comparison of two infiltration equations with three-terms expansions consistent with the approach of Philip theory 两种符合菲利普理论方法的三项展开式入渗方程的比较
IF 1.6 4区 农林科学
Irrigation and Drainage Pub Date : 2024-12-04 DOI: 10.1002/ird.3062
George Kargas, Dimitrios Koka, Paraskevi A. Londra, Leonidas Mindrinos
{"title":"Comparison of two infiltration equations with three-terms expansions consistent with the approach of Philip theory","authors":"George Kargas,&nbsp;Dimitrios Koka,&nbsp;Paraskevi A. Londra,&nbsp;Leonidas Mindrinos","doi":"10.1002/ird.3062","DOIUrl":"https://doi.org/10.1002/ird.3062","url":null,"abstract":"<p>In this study, the approximate three-term (3 T) one-dimensional (1D) vertical infiltration equation by Valiantzas (3 T-V) and the 3 T approximate infiltration equation of the quasi-exact implicit (QEI) Haverkamp equation (3T-R) by Rahmati et al. for both direct and inverse modelling of water infiltration into soils were evaluated. The 3 T-V equation is simpler and involves only two physically meaningful parameters, sorptivity (<i>S</i>) and saturated hydraulic conductivity (<i>K</i><sub><i>s</i></sub>), unlike 3 T-R, which includes an additional parameter, <i>β</i>. The coefficients of the second and third terms of 3 T-V acquire the same values as those of 3 T-R for values of the parameter β equal to 0.6 and 1.1, respectively. Both 3 T equations yielded similar cumulative infiltration results except at longer times. The inverse solution of 3 T-V showed better accuracy in predicting <i>S</i> and <i>K</i><sub>s,</sub> with relative error (RE) values generally below 6% and 11%, respectively. The reliability of the <i>S</i> and <i>K</i><sub><i>s</i></sub> predictions via the 3 T equations improved over time, and both methods yielded nearly identical results across the studied soils at all infiltration times. However, longer times are needed to accurately predict <i>K</i><sub><i>s</i></sub>. Analysing the contribution of each term reveals that the third term (<i>t</i><sup>3/2</sup>), though minor in total infiltration, extends the validity time of the 3 T equations.</p>","PeriodicalId":14848,"journal":{"name":"Irrigation and Drainage","volume":"74 3","pages":"1267-1280"},"PeriodicalIF":1.6,"publicationDate":"2024-12-04","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://onlinelibrary.wiley.com/doi/epdf/10.1002/ird.3062","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144614895","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"农林科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 0
Effects of magnetized ionized water and Bacillus subtilis on water and salt transport characteristics and ion composition in saline soil 磁化电离水和枯草芽孢杆菌对盐碱地水盐运移特性及离子组成的影响
IF 1.6 4区 农林科学
Irrigation and Drainage Pub Date : 2024-12-03 DOI: 10.1002/ird.3060
Zhanbo Jiang, Quanjiu Wang, Songrui Ning, Kai Wei, Xiaoqin Hu
{"title":"Effects of magnetized ionized water and Bacillus subtilis on water and salt transport characteristics and ion composition in saline soil","authors":"Zhanbo Jiang,&nbsp;Quanjiu Wang,&nbsp;Songrui Ning,&nbsp;Kai Wei,&nbsp;Xiaoqin Hu","doi":"10.1002/ird.3060","DOIUrl":"https://doi.org/10.1002/ird.3060","url":null,"abstract":"<p>Magnetized ionized water and <i>Bacillus subtilis</i> are essential for enhancing soil salinity leaching and improving soil structure. To explore the combined effects of magnetized ionized water and <i>B. subtilis</i> on water–salt transport in saline soil, a one-dimensional vertical infiltration experiment was conducted. This study evaluated the soil water and salt distributions, infiltration model parameters and composition of exchangeable base ions with magnetized ionized water (M) and nonmagnetized-ionized water, alongside varying amounts of <i>B. subtilis</i> [B<sub>0</sub> (0%), B<sub>1</sub> (1.5%), B<sub>2</sub> (3.0%), B<sub>3</sub> (4.5%), B<sub>4</sub> (6.0%)]. The results showed that magnetized ionized water increased the infiltration volume and wetting front depth. As the application amount of <i>B. subtilis</i> increased, the changes in these two indicators initially increased but then decreased. The sorptivity parameter (<i>S</i>) mirrored this trend, whereas the shape coefficient (<i>α</i>) showed the opposite pattern. Compared with the B<sub>0</sub> treatment, the MB<sub>1</sub> treatment increased the 0–20 cm soil water content by 14%, decreased the salt content by 13% and improved the desalination rate by 98%, with the efficiency increasing by 62%. Moreover, the total exchangeable base ions increased, with the highest (Ca<sup>2+</sup>+ Mg<sup>2+</sup>) and lowest Na<sup>+</sup> contents observed under B<sub>1</sub>. MB<sub>1</sub> notably enhanced infiltration and water–salt transport, demonstrating significant desalination effects.</p>","PeriodicalId":14848,"journal":{"name":"Irrigation and Drainage","volume":"74 3","pages":"998-1009"},"PeriodicalIF":1.6,"publicationDate":"2024-12-03","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144615074","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"农林科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 0
Water productivity and economic feasibility of drip irrigation system investment in tomato cultivation: Case of northeastern Tunisia 番茄种植中滴灌系统投资的水分生产力和经济可行性——以突尼斯东北部为例
IF 1.6 4区 农林科学
Irrigation and Drainage Pub Date : 2024-12-03 DOI: 10.1002/ird.3066
Fatma Messaoudi, Bechir Ben Nouna, Ali Chebil, Fayçal Ounaies, Atef Ben Alaya
{"title":"Water productivity and economic feasibility of drip irrigation system investment in tomato cultivation: Case of northeastern Tunisia","authors":"Fatma Messaoudi,&nbsp;Bechir Ben Nouna,&nbsp;Ali Chebil,&nbsp;Fayçal Ounaies,&nbsp;Atef Ben Alaya","doi":"10.1002/ird.3066","DOIUrl":"https://doi.org/10.1002/ird.3066","url":null,"abstract":"<p>Tunisia is characterized by water scarcity, growing water demand and considerable waste of this resource especially in the agricultural sector. To cope with this situation and enhance water productivity, appropriate utilization of advanced irrigation methods such as drip irrigation is highly needed. Hence, this research aims to evaluate the profitability of drip irrigation systems compared with surface irrigation systems at the perimeter of Echraf, which is located in the northeastern of Tunisia. Primary data were collected from 25 adopters of the Drip Irrigation System and 13 non-adopters. The results of the partial budget analysis revealed that the average total cost for adopters was higher than that for non-adopters. However, the net margin was higher for adopters than for non-adopters. This is due to the greater increase in gross revenue for adopters than for non-adopters. Additionally, drip irrigation resulted in more efficient water use and water values than did the surface irrigation system. Economic profitability analysis via the benefit cost ratio and net present value tools revealed that the drip irrigation system is profitable. The benefit cost ratio is equal to 1.65, and the net present value is approximately 2938 Tunisian National Dinar. Finally, the sensitivity analysis reveals the extent to which profitability is sensitive to the scenarios of subsidy levels.</p>","PeriodicalId":14848,"journal":{"name":"Irrigation and Drainage","volume":"74 3","pages":"1010-1017"},"PeriodicalIF":1.6,"publicationDate":"2024-12-03","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://onlinelibrary.wiley.com/doi/epdf/10.1002/ird.3066","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144615075","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"农林科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 0
Are conductivity sensors useless for irrigators? Exploring measurement consistency around soil moisture thresholds relevant to different applications 电导率传感器对灌溉系统无用吗?探索与不同应用相关的土壤湿度阈值的测量一致性
IF 1.6 4区 农林科学
Irrigation and Drainage Pub Date : 2024-12-02 DOI: 10.1002/ird.3064
Muhammad Rasool Al-Kilani, Qasem Abdelal, Ghaith Al-Shishani
{"title":"Are conductivity sensors useless for irrigators? Exploring measurement consistency around soil moisture thresholds relevant to different applications","authors":"Muhammad Rasool Al-Kilani,&nbsp;Qasem Abdelal,&nbsp;Ghaith Al-Shishani","doi":"10.1002/ird.3064","DOIUrl":"https://doi.org/10.1002/ird.3064","url":null,"abstract":"<p>The cheap conductivity-based sensors favoured by farmers for soil moisture monitoring remain largely ignored by researchers because of their low accuracy, which results in high uncertainty regarding their utility for irrigators. In this work, conductivity measurements were compared with dielectric permittivity measurements in moisture ranges relevant to different applications. The results showed that the permittivity measurements captured moisture variability well (<i>R</i><sup>2</sup> &gt; 0.8) throughout the full range tested (0%–35%), which is consistent with the literature. Conductivity measurements consistently distinguished dry from wet conditions (<i>p</i> &lt; 0.0001) and reflected moisture variability in lower ranges (<i>R</i><sup>2</sup> &gt; 0.5) but not in higher ranges (&gt;20%). This is problematic because important monitoring thresholds such as field capacity and saturation are in the upper moisture ranges. Conductivity measurements were found to lack any meaningful utility in most applications except those relevant to distinguishing dry from wet conditions and indicating lower-range moisture patterns, such as monitoring in arid environments. This gives some merit to conductivity sensors considering their very low cost if corrosion is minimised. The described evaluation approach is suggested as an example for developers, labs and extension services to better communicate potential sensor utilities and restrictions to practitioners to improve their accessibility to decision support technologies.</p>","PeriodicalId":14848,"journal":{"name":"Irrigation and Drainage","volume":"74 3","pages":"1018-1030"},"PeriodicalIF":1.6,"publicationDate":"2024-12-02","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144615000","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"农林科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 0
Influence of super absorbent hydrophilic polymers on enhancing resources use efficiency and crop productivity in Vertisols 高吸水性亲水性聚合物对提高植物资源利用效率和作物生产力的影响
IF 1.6 4区 农林科学
Irrigation and Drainage Pub Date : 2024-11-28 DOI: 10.1002/ird.3063
Umashanker Pandey, Kondapally Venkata Ramana Rao, Yogesh Anand Rajwade, Dilip Jat, Ranjay Kumar Singh
{"title":"Influence of super absorbent hydrophilic polymers on enhancing resources use efficiency and crop productivity in Vertisols","authors":"Umashanker Pandey,&nbsp;Kondapally Venkata Ramana Rao,&nbsp;Yogesh Anand Rajwade,&nbsp;Dilip Jat,&nbsp;Ranjay Kumar Singh","doi":"10.1002/ird.3063","DOIUrl":"https://doi.org/10.1002/ird.3063","url":null,"abstract":"<p>Water scarcity is a significant challenge in agriculture, particularly in arid and semiarid regions. Superabsorbent polymers (SAPs), such as hydrogels, have emerged as effective tools for enhancing soil moisture retention and improving crop yield and water productivity in these environments. A two-year field study was conducted to examine the impacts of hydrogel type and application depth on soil water distribution, water productivity and spinach growth. Two types of hydrogels, polymer-based (Hydrogel-1) and small organic molecule-based (Hydrogel-2), were applied at three depths—surface (D<sub>1</sub>), 5 cm (D<sub>2</sub>) and 10 cm (D<sub>3</sub>)—in a randomized block design. The results revealed that the water absorption capacity and water salinity of Hydrogel-1 were negatively correlated, whereas those of Hydrogel-2 were unaffected by salinity. Compared with that of the control, the soil moisture retention improved with deeper hydrogel application, with the Hydrogel-1 treatment at 10 cm extending irrigation intervals by 2–4 days. Hydrogel application at greater depths significantly increased spinach growth metrics, including plant height, leaf count, leaf area, root length, SPAD value and yield, resulting in the highest yield (5.7 kg/m<sup>2</sup>) and water productivity (44.8 kg/m<sup>3</sup>). The study concludes that applying hydrogels at a depth of 10 cm is optimal for maximizing resource use efficiency and water productivity in spinach grown in vertisols.</p>","PeriodicalId":14848,"journal":{"name":"Irrigation and Drainage","volume":"74 3","pages":"1281-1295"},"PeriodicalIF":1.6,"publicationDate":"2024-11-28","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144615517","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"农林科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 0
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