Optimizing Water Use Efficiency on Violet and White Garlic Types Through Regulated Deficit Irrigation

Lipinski, Víctor M.; Gaviola, Silvia

doi:10.17660/actahortic.2011.889.58

Cited by 7 publications

(2 citation statements)

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“…It is worth highlighting that, except in the case of AVE 2 (purple garlic), the ET a did not reach ET m in the last growing stage. This meant that the crop suffered a slight deficit at ripening, making it necessary to improve the harvesting work, but without a great impact on the final yield [18,53,54] (Figure 2).…”

Section: Irrigation Schedulingmentioning

confidence: 99%

Improving the Sustainability and Profitability of Oat and Garlic Crops in a Mediterranean Agro-Ecosystem under Water-Scarce Conditions

et al. 2022

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In areas with scarce water resources, population growth and climate change scenarios will mean that there is increasingly less water available for agricultural activity. Thus, optimizing crop irrigation water management is an absolute necessity. To address this situation, the SUPROMED project (sustainable production in water-limited environments of Mediterranean agro-ecosystems), available in an online platform, brings together a series of models and methodologies designed to promote more efficient management of water, energy and fertilizers. A two-year trial (2020–2021) was implemented in the Castilla-La Mancha region (Spain), with the aim of showing the effectiveness of SUPROMED as a farm management support tool. The trial was conducted on two of the region’s most important crops (oats and garlic). A series of productive, economic, and environmental key performance indicators (KPIs) were analyzed to measure the impact of transferring MOPECO (model for the economic optimization of irrigation water use at farm level), the irrigation scheduling model integrated in the SUPROMED platform, to farmers. In 2020, the management plan proposed by SUPROMED achieved a higher yield for oat than that generated by traditional management, using 40% less water. In the case of garlic, the same yield was obtained, using 30% less water. Gross margin and gross economic irrigation water productivity were improved for both crops. In 2021, one of the selected farmers was trained to use the SUPROMED platform to work with garlic crop. This management improved most of the KPIs analyzed compared to previous management without the SUPROMED platform, obtaining similar results to those obtained by SUPROMED in 2020. The results demonstrate that the tools and models included in SUPROMED have been properly adapted and can be easily used by farmers, improving the economic and environmental sustainability of Mediterranean agroecosystems.

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Section: Irrigation Schedulingmentioning

confidence: 99%

Improving the Sustainability and Profitability of Oat and Garlic Crops in a Mediterranean Agro-Ecosystem under Water-Scarce Conditions

et al. 2022

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“…With this technology, a crop experiences a regulated water de cit at different amounts according to the characteristics of water consumption for that crop, thereby saving water and increasing water use e ciency. Regulated de cit irrigation has been widely applied, including with corn 2,3 , tomatoes 4 , wheat 5 , onions 6,7 , Isatis tinctoria 8,9 , grapes 10,11 , persimmons 12 , cherries 13,14 , garlic 15 , watermelons 16 , and peppers 17 . The technology is effective at increasing yields and water conservation.…”

Section: Introductionmentioning

confidence: 99%

Potato Growth, Photosynthesis, Yield, and Quality Response to Regulated Deficit Drip Irrigation under Film Mulching in A Cold and Arid Environment

Deng

Wang

et al. 2021

Preprint

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The effects of the amount and timing of regulated deficit drip irrigation under plastic film on potato (‘Qingshu 168’) growth, photosynthesis, yield, water use efficiency, and quality were examined from 2017 to 2019 in cold and arid northwestern China. A two-factor randomized design was used with two levels of regulated deficit irrigation (mild, moderate) applied in four stages of potato growth (seedling, tuber initiation, tuber bulking, starch accumulation). Growth and photosynthetic parameters were determined in each growth stage, and yield and quality were measured after harvest. The net photosynthetic rate, stomatal conductance, and transpiration rate decreased significantly under water deficit in the tuber formation and starch accumulation stages, and the decreases were greater with moderate than mild water deficit. Although water deficit reduced potato yields, potato subjected to mild water deficit in the seedling stage had the highest yield at 43,961.91 kg·ha−1, followed by those subjected to mild water deficit in the starch accumulation stage at 42,262.25 kg·ha−1, which were decreases of only 4.50% and 8.19%, respectively, compared with potato under full irrigation. The highest water use efficiency was in potatoes subjected to mild water deficit in the seedling stage (8.67 kg·m−3), with the second highest in those subjected to moderate water deficit in the seedling stage (8.28 kg·m−3), which were significant improvements by 10.87% and 5.84%, respectively, compared with full irrigation. The highest overall quality was in potatoes subjected to mild and moderate water deficit in the seedling stage. The starch content in potatoes with mild water deficit in the seedling stage increased by 3.34% compared with that under full irrigation. In addition, the protein and vitamin C contents in potatoes under moderate water deficit increased significantly by 0.77% and 21.59%, respectively, compared with the contents under full irrigation. Principal component analysis identified mild water stress in the seedling stage as the optimum regulated deficit irrigation regime for potato. Thus, the relative soil water content should be maintained at 55% to 65% of field capacity in the seedling stage but at 65% to 75% in the other growth stages. The results of this study provide theoretical and technical references for efficient water-saving cultivation and industrialization of potato in cold and arid northwestern China.

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Combination of typical meteorological year with regulated deficit irrigation to improve the profitability of garlic growing in central spain

Domı́nguez

Martínez-Romero

Leite³

et al. 2013

Agricultural Water Management

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Optimizing Water Use Efficiency on Violet and White Garlic Types Through Regulated Deficit Irrigation

Cited by 7 publications

References 0 publications

Improving the Sustainability and Profitability of Oat and Garlic Crops in a Mediterranean Agro-Ecosystem under Water-Scarce Conditions

Improving the Sustainability and Profitability of Oat and Garlic Crops in a Mediterranean Agro-Ecosystem under Water-Scarce Conditions

Potato Growth, Photosynthesis, Yield, and Quality Response to Regulated Deficit Drip Irrigation under Film Mulching in A Cold and Arid Environment

Combination of typical meteorological year with regulated deficit irrigation to improve the profitability of garlic growing in central spain

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