Irrigation scheduling strategies for cotton to cope with water scarcity in the Fergana Valley, Central Asia

Pereira, L. S.; Paredes, Paula; Сholpankulov, E.D.; Inchenkova, O.P.; Teodoro, Pedro; Horst, M. G.

doi:10.1016/j.agwat.2008.10.013

Cited by 97 publications

(63 citation statements)

References 32 publications

(53 reference statements)

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“…A high reduction of available water may affect crop productivity and reduce yield, with important consequences on farmers' incomes [16]. Thus it is important to evaluate the economic impact of a reduction of irrigation water relative to the economic water productivity, EWP (€ m -3 ) [21] defined as…”

Section: Water Productivity and Economic Water Productivitymentioning

confidence: 99%

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Economic Performance of Traditional and Modern Rice Varieties under Different Water Management Systems

et al. 2017

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Italian rice production is progressively threatened by water scarcity. Some strategies have been developed to reduce water use. Nevertheless, reducing water irrigation amounts may lower paddy rice production. This publication compares the productivity and the economic performances of traditional and modern rice varieties in northern Italy using two different water management systems. The objective of this analysis is to enhance Italian rice cultivation at the economic, environmental and agronomic levels. Some positive variations of water productivity and economic water productivity were observed for the two varieties when using a lower amount of irrigation water. However, actual production costs and most water supply fees are the same for all the irrigation methods. Furthermore, the study of agronomic traits shows that during the recent years, there were no significant differences or increases of yield among varieties. Consequently, to be adopted by farmers, the irrigation costs coupled with improved rice accessions need to be optimized.

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Section: Water Productivity and Economic Water Productivitymentioning

confidence: 99%

“…However, water productivity does not provide any information about the economic effects of decreased water use. Consequently, it is important to also consider the economic water productivity (EWP) [16,17], which defines the production value per unit of water used.…”

Section: Introductionmentioning

confidence: 99%

Economic Performance of Traditional and Modern Rice Varieties under Different Water Management Systems

et al. 2017

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“…Several authors have evaluated the efficiency of water use for a variety of crops under different water, soil and plant managements (BUTTAR et al, 2007;DETAR, 2008;EHOLPANKULOV et al, 2008;PEREIRA et al, 2009), indicating the importance of this study, especially in arid and semiarid regions. However, studies that seek to propose mechanisms to improve the efficiency of water use under saline stress are scarce.…”

Section: Introductionmentioning

confidence: 99%

Efficiency of water use in sunflower grown in hydroponic system under saline stress

Júnior¹,

Gheyi

Filho³

et al. 2013

Eng. Agríc.

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ABSTRACT:In order to identify alternatives for the use of saline water in agricultural production, the effects of the use of brackish water in the preparation of the nutrient solution for the cultivation of sunflower (cv. EMBRAPA 122-V2000) were studied in hydroponic system on consumption and efficiency of water use for the production of achenes and biomass. A completely randomized design was used, analyzed in a 5x2 factorial scheme with three replications. The factors studied were five levels of salinity of nutrient solution (1.7 -control; 4.3; 6.0; 9.0; and 11.5dS m -1 ) and two plant densities -one or two plants per vessel. It was concluded that the water consumption of sunflower is a variable sensitive to the salinity of the nutrient solution, especially after the fourth week of crop, and that the efficiency of water use in the production of achenes and biomass of sunflower is greater when the plant density increases from one to two plants per vessel, even under saline stress.KEYWORDS: salinity, plant density, soilless culture, Helianthus annuus L.. EFICIÊNCIA DO USO DA ÁGUA PARA GIRASSOL CULTIVADO EM SISTEMA HIDROPÔNICO SOB ESTRESSE SALINORESUMO: Na busca por alternativas para a utilização de águas salinas na produção agrícola, estudaram-se os efeitos do uso da água salobra no preparo da solução nutritiva para o cultivo do girassol (cv. EMBRAPA 122-V2000), em sistema hidropônico, sobre o consumo e a eficiência de uso da água para a produção de aquênios e fitomassa. Utilizou-se um delineamento experimental inteiramente casualizado, analisado em esquema fatorial 5x2, com três repetições, sendo estudados cinco níveis de salinidade da solução nutritiva (1,7 -testemunha; 4,3; 6,0; 9,0 e 11,5 dS m -1 ) e duas densidades de plantas -uma ou duas plantas por vaso. Concluiu-se que o consumo hídrico do girassol é uma variável sensível à salinidade da solução nutritiva, principalmente a partir da quarta semana de cultivo, e que a eficiência do uso da água na produção de aquênios e fitomassa pelo girassol é maior quando a densidade de plantio aumenta de uma para duas plantas por vaso, inclusive sob estresse salino. PALAVRAS-CHAVE: salinidade, densidade de plantio, cultivo sem solo, Helianthus annuus L..

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“…However, excessive water is often applied to furrow irrigated cotton and wheat in the region, and various strategies have been put forward to reduce irrigation amounts applied while maintaining yields (Horst et al, 2007;Pereira et al, 2009). For example, Horst et al (2007) show that by irrigating cotton with surge-flow irrigation in alternate furrows, the irrigation water could be decreased by 44% (3891 m 3 ha -1 ), which is about the amount of water necessary to irrigate soybean.…”

Section: It Is Feasible To Grow Soybean In Uzbekistan As a Double Cropmentioning

confidence: 99%

“…In many systems, the intensification of agriculture with double cropping is a major tool to improve the efficiency of resource use, such as water and radiation use efficiency (Van Opstal et al, 2011;Fouli et al, 2012). In the Fergana valley, the period between July and mid-October represents over 40% of the total yearly radiation (data taken from Pereira et al, 2009; Table 2). In addition, legumes in rotation with other crops can break disease cycles, improve the fertility and structure of the soil and encourage the development of mycorrhizal associations (Subbarao et al, 1995).…”

Section: Introductionmentioning

confidence: 99%

A Short Season Canadian Soybean Cultivar Double Cropped After Winter Wheat in Uzbekistan With and Without Inoculation with Bradyrhizobium

Bourgault¹,

Madramootoo²,

Webber³

et al. 2015

JPS

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Agricultural systems in Uzbekistan are dominated by the production of cotton and winter wheat as these crops are subject to state-prescribed quotas. An experiment was conducted in the Fergana valley, in Uzbekistan, Central Asia, to determine the feasibility of growing a short-season Canadian soybean (Glycine max [L.] Merr.) cultivar after the harvest of winter wheat in early July. An inoculated treatment was compared to a non-inoculated control in a randomized complete block design with four blocks. While the inoculation did not establish well in 2003, in 2004, the yield of inoculated soybean was twice that of the non-inoculated control (106% increase). Inoculation in 2004 increased seed weights by 30%, final pod number by 29%, biomass dry weight at the pod-filling stage (56%) and at harvest (56%), as well as the harvest index by 22%. Nodules were, in general, only present in the inoculated treatments, which indicated that appropriate indigenous rhizobial strains were not present in these soils, but ineffective rhizobial competitors to commercial inoculants were also absent. Soybean production could be possible in Uzbekistan without competing with state prescribed crops such as cotton and winter wheat. Based on prices from 2004, this represents an additional income of more than 300$ ha -1 . More research is needed to determine the optimal conditions for inoculation success in hot and dry climates.

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Irrigation scheduling strategies for cotton to cope with water scarcity in the Fergana Valley, Central Asia

Cited by 97 publications

References 32 publications

Economic Performance of Traditional and Modern Rice Varieties under Different Water Management Systems

Economic Performance of Traditional and Modern Rice Varieties under Different Water Management Systems

Efficiency of water use in sunflower grown in hydroponic system under saline stress

A Short Season Canadian Soybean Cultivar Double Cropped After Winter Wheat in Uzbekistan With and Without Inoculation with Bradyrhizobium

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