Effect of Gypsum Application and Irrigation Intervals on Clay Saline-Sodic Soil Characterization, Rice Water Use Efficiency, Growth, and Yield

Hafez, Emad M.; Hassan, Waqed H.; Gaafar, Ibrahim; Seleiman, Mahmoud F.

doi:10.5539/jas.v7n12p208

Cited by 24 publications

(29 citation statements)

References 30 publications

(32 reference statements)

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“…The increases in rice yield and its component by gypsum due to (1) substituting of sodium by calcium, (2) improving soil pH, blooming the nutrient availability and nutrient use efficiency of the crop as well as decreased the hazardous effect of salinity and sodicity. These results stand in well agreement with those of Bello (2012), Helmy (2013) and Hafez et al (2015).…”

Section: D-grain and Straw Yieldssupporting

confidence: 92%

“…Whereas, the best combination was irrigation every three day with gypsum application at the rate of 0.5 or 1.0 t ha -1 CaSO 4 . The obtained findings in are a good conformity with those reported by Muhammad (2001), Zayed et al, (2013) and Hafez et al, (2015). Means of each season designated by the same latter are not significantly different at 5% level using Duncan's Multiple Range Test.…”

Section: E: Soil Propertiessupporting

confidence: 91%

“…It is became fact that gypsum application is crucial issue under reclaimed saline sodic soil cultivated by rice to prolong irrigation intervals up to 6 days. Similar data had been obtained by El-Sherkawy et al, (2006), Zayed et al, (2013) and Hafez et al, (2015). The interaction between irrigation intervals had significant effect on Na + and Na/ K ratio in both seasons ( Table 5).…”

Section: A-growth Parametersupporting

confidence: 88%

“…Irrigation interval every nine days and gypsum rates 1.5 t ha -1 CaSo 4 raised WUE compared with other treatments in both seasons. Similar data was obtained by Hafez et al, (2015). Generally, under the same experiment condition, it can be concluded that the shortest irrigation interval every three days and application gypsum (CaSo 4 ) at the rate of 1.0 or 1.5 t ha -1 could be decreased the hazardous effect of salinity and increased grain yield and its component of Sakha104 rice cultivar.…”

Section: F-water Use Efficiencysupporting

confidence: 79%

“…In addition, gypsum booted up water productivity of crops through improving water hydraulic conductivity rate and yields (Shainberg et al, 1989). (Hafez et al, 2015) found that applying gypsum under salt affected soil significantly improved soil proprieties reflecting on optimizing rice growth and yield components as well as grain yield.…”

Section: Introductionmentioning

confidence: 98%

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Improvement of Salinity Soil Properties and Rice Productivity under Different Irrigation Intervals and Gypsum Rates

Zayed¹,

El-Kellawy²,

Okasha³

et al. 2017

Journal of Plant Production

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The study was carried out in of 2015 and 2016 seasons at the Experimental Farm of El-Sirw Agriculture Research Station, Damietta Governorate, and Egypt. The main objective of an attempt was to determine the effect of short, medium and prolong irrigation intervals (irrigation every three, six and nine days) and gypsum rates (0, 0.5,1.0 and 1.5 t ha -1 CaSO 4 ) on some soil prosperities, some plant elements, plant growth and grain yield of Sakha 104 rice cultivar, under saline soil conditions. A strip plot design, with four replicates, was used. The horizontal plots were devoted to irrigation intervals, however, the gypsum rates were allocated in the vertical plots. The soil of the experimental site was clayey and salinity levels were 7.5 and 7.3 dSm -1 in 2015 and 2016 seasons, respectively. The results obtained could be summarized as follows: Irrigation every three days increased chlorophyll content, LAI, plant height, number of tillers, panicle length, number of panicles, filled grains/panicle, panicle weight, 1000-grain weight, grain and straw yields as a compared with irrigation every nine days, which recorded the highest values of unfilled grains. Irrigation every three days significantly increased soil bulk density as well as Ca ++ and K + (in the soil and plant). However, it decreased the soil EC, Na + (in the soil and plant) and Na/K ratio in the plant. Irrigation every three days consumed the highest amount of irrigation water, while prolonged irrigation intervals up to six and nine days tended to decrease the amount of water used. Furthermore, nine days treatment recorded the highest water use efficiency. Gypsum (as a soil amendment) rated 1.5 t 1 CaSo4 hasignificantly raised all studied growth parameter (except plant height), grain yield and its components without any significant differences with 1.0 t ha -1 CaSo 4 in some traits in both seasons. Gypsum at the rate of 1.5 t ha -1 CaSo 4 mitigate the hazardous effect of salinity by decrease soil EC, Na + (in the soil and plant) and Na/K ratio in the plant. Generally, under the same condition, irrigation every three days and gypsum at the rate of 1.5 t ha -1 CaSo 4 are favorable for improve soil properties and enhance rice productivity under saline soil conditions.

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