Yield, quality and crop water stress index relationships for deficit-irrigated soybean [Glycine max (L.) Merr.] in sub-humid climatic conditions

Candogan, Burak Nazmi; Sincik, Mehmet; Büyükcangaz, Hakan; Demirtaş, Çiğdem; Göksoy, Abdurrahim Tanju; Yazgan, Senih

doi:10.1016/j.agwat.2012.11.021

Cited by 85 publications

(52 citation statements)

References 48 publications

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“…For instance, yields for T1111 are between 3.6 and to 3.7 t ha −1 for fully irrigated soybean and higher than the average seed yields under different DI [32]. The yield range in this study is similar to 2.16-3.93 t ha −1 and 1.98-3.59 t ha −1 for DI irrigation [33]; 2.3 to 3.5 t ha…”

Section: Relationship Between Yield Decrease and Decrease In Evapotrasupporting

confidence: 48%

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Crop water productivity and economic evaluation of drip-irrigated soybeans (Glyxine max L. Merr.)

et al. 2015

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Background: Effective management of water under irrigated agriculture is crucial to ensure food security. One crop that has high irrigation economic potential at local and international scales is soybean. This article presents the outcome of field experiments conducted in the dry seasons of 2013 and 2014 in Nigeria on the effects of deficit irrigation (DI) practices on reproductive stages of soybean. The experimental factor was the timing of irrigation. The five treatments were full irrigation (FI); skipping of irrigation every other week during flowering; pod initiation; seed filling and maturity stages.The crop was planted in a randomized complete block design with three replicates and inline drip irrigation was used to apply water. Leaf area index, dry above-ground biomass and seed yield were measured and the soil water balance approach was used to determine seasonal crop water use.Results: Seasonal crop water use for the treatment in which deficit irrigation was imposed at seed filling stage was 364 mm while for the control treatment with full irrigation, seasonal crop water use was 532 mm. The seed yield reduced by 18.8 and 21.9% when DI was imposed during flowering and pod initiation, respectively. Similarly, the seed yield reduced by 24.4 and 47.9% when DI was imposed during maturity and seed filling. Water productivity (WP) reduced by 6.8 and 12.4% when DI was used during flowering and pod initiation, respectively. However, WP reduced by 20 and 35% during maturity and seed filling. DI during reproductive stages reduced economic water productivity by 6.7-35% while revenue was reduced by 18.5-47.7%. Conclusions:Full irrigation should be practiced to maximize water productivity. Weekly skipping of irrigation during seed filling will substantially reduce the seed yield and water productivity while skipping during flowering may be a viable option when water is scarce and land is not limiting. Economic evaluation will guide policy makers at basin scales for formulating improved and efficient water management plans under all varying weather conditions. DI can be used to optimise water productivity. The results will be beneficial in adopting deficit irrigation in a manner that will improve economic water productivity.

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Section: Relationship Between Yield Decrease and Decrease In Evapotrasupporting

confidence: 48%

“…SWU of 554-721 mm was reported by Lamm et al [34] and 513-1,261 mm by Gercek et al [17]. Similarly, Candogan et al [33] reported SWU between 394 and 802 mm and 351-841 mm under different levels of DI. Dogan et al [32] reported 574-619 mm for fully irrigated conditions.…”

Section: Soil Water Balancementioning

confidence: 68%

Crop water productivity and economic evaluation of drip-irrigated soybeans (Glyxine max L. Merr.)

et al. 2015

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“…A higher content was achieved in (2007) established that irrigation levels had no effect on the protein content of soybean. The present results also differ from those of other studies (Liu et al 2004, Candogan et al 2013) that reported a decrease in protein content as soybean yield was maximized by irrigation.…”

Section: Resultscontrasting

confidence: 99%

Yield and chemical composition of soybean seed under different irrigation regimes in the Vojvodina region

Kresović¹,

Gajić²,

Tapanarova³

et al. 2017

Plant Soil Environ.

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The goal of the present research is to determine an effective sprinkler irrigation strategy for soybean [Glycine max (L.) Merr.] in temperate climate conditions, in order to maximize yields and seed quality. A three-year field experiment with four different irrigation treatments was conducted on Calcic Chernozem in the Vojvodina region of Serbia. The irrigation regimes included: no irrigation; full irrigation (I100); and two deficit irrigation treatments – 65% of I100 (I65) and 40% of I100. The irrigation treatments generally had a statistically significant effect on the increase of soybean yield and protein content. Irrigation did not have a significant effect on the oil content. In general, irrigation increased K, P, Mg, Mn, Cu, Zn and B concentrations and decreased Ca and Fe concentrations in soybean seed. The results show that irrigation with the largest amount of water (treatment I100) provided no potential benefit in terms of soybean yield and chemical composition. Treatment I65, which exhibited the most favourable watering conditions, is the best choice to maximize yield and ensure a good chemical composition of soybean under these agroecological conditions.

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“…Some physical and chemical properties of the experimental site soil are given in Table 1. The region climate is temperate, the summers are hot and dry, and the winters are mild and humid (Candogan and Yazgan, 2010;Candogan et al, 2013). The long-term (1975The long-term ( -2003 annual rainfall, temperature and relative humidity are 675.9 mm, +14.5°C and 66.0%, respectively.…”

Section: Methodsmentioning

confidence: 99%

Growth and Quality Responses of Tall Fescue (Festuca arundinacea Schreb.) to Different Irrigation Levels and Nitrogen Rates

Candogan¹,

Bilgili²,

Yazgan³

et al. 2014

Turkish Journal of Field Crops

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A 2-year experiment was conducted to investigate the effects of different irrigation levels and nitrogen rates on visual turfgrass colour and quality and clipping yield of tall fescue (Festuca arundinacea Schreb.) under subhumid climatic conditions. The treatments consisted of five levels of irrigation, 25% (I1), 50% (I2), 75% (I3), 100% (I4) and 125% (I5), of the evaporation measured from a Class A pan and two rates of nitrogen, 25 kg N ha -1 (N1) and 50 kg N ha -1 (N2). The N rates were applied as a monthly rate during growing seasons (MaySeptember). The experimental area was irrigated by a pop-up sprinkler irrigation system. The irrigation was applied at 3-day intervals during May-September for both years. The seasonal crop evapotranspiration (ETc) under the treatments ranged from 315 to 1154 mm in 2007 and from 363 to 1100 mm in 2008. The ETc increased with increasing the both N rate and irrigation level, and the best seasonal turf quality of tall fescue was obtained for the I4 and I5 treatments under N2 rate. This study demonstrated that, when the level of irrigation and nitrogen rate were evaluated together, the N2I4 treatment ensured sufficiently dark turf colour and quality. Based on the results of this study, it is concluded that an acceptable turf quality can be sustained under the N1I1 treatment in May, N1I2 treatment in June, July and August and N1I4 treatment in September (or N2I2 treatment in September) according to water conservation. When rainfall amountis high (132.2 mm) in September, the N1I1 treatment may sustain acceptable turf quality for this month.

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Yield, quality and crop water stress index relationships for deficit-irrigated soybean [Glycine max (L.) Merr.] in sub-humid climatic conditions

Cited by 85 publications

References 48 publications

Crop water productivity and economic evaluation of drip-irrigated soybeans (Glyxine max L. Merr.)

Crop water productivity and economic evaluation of drip-irrigated soybeans (Glyxine max L. Merr.)

Yield and chemical composition of soybean seed under different irrigation regimes in the Vojvodina region

Growth and Quality Responses of Tall Fescue (Festuca arundinacea Schreb.) to Different Irrigation Levels and Nitrogen Rates

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