Publications

Titles

English :

Utilization of salt affected soils for wheat-rice production in arid region of Egypt

Arabic :

الاستفاده من الأراضى المتاثره بالأملاح لانتاج محصول القمح و الأرز فى المناطق الجافه

Abstract

A field experiment was conducted on a new reclaimed salt affected soils at south Al-Husainia plain, Sharkia Governorate, during two successive seasons (winter 2008/2009 and summer 2009) to evaluate the effect of some soil amendments i.e., gypsum and sulfur applied individually or combined with different nitrogen sources i.e., urea formaldehyde, urea and ammonium sulfate at three rates of 75 %, 100% and 125 % from recommended dose for wheat plants. Rice was broadcasted in the same plots without any further application of the aforementioned soil amendments to study their residual effects on straw and grain yields as well as uptake of N, P and K. Results showed that soil amendments significantly increased the straw and grain yields of wheat as well as N, P and K uptake by both straw and grains compared to the control treatment. Also, it was found that straw and grain yields as well as N, P and K uptake by plants increased with increasing the rates of nitrogen sources application and the highest values were achieved at a rate of 125 % N from recommended dose. The combination between soil amendments and nitrogen sources, particularly at highest N rates, produced highest values of the aforementioned parameters, compared to the other soil treatments. It is worthy to mention that, the highest values of straw and grain yields as well as N,P and K uptake by wheat plants were recorded by the combined application of urea formaldehyde at a rate of 125% from recommended dose with gypsum. Concerning the residual effect of soil amendments, the results revealed that the straw and grain yields as well as N, P and K uptake by rice plants were significantly enhanced with the application of nitrogen fertilizers combined with the residual effect of the used soil amendments. However the higher values of the abovementioned parameters were obtained due to the residual effect of sulfur combined with nitrogen fertilizers. The results showed that the residual effect of gypsum or sulfur significantly reduced soil ECe, ESP and pH after wheat and rice harvesting. It could be recommended that the application of soil amendments combined with N fertilizers at rate of 125% N from recommended dose were required for wheat and rice production on newly reclaimed salt affected soils since it reduced soil ECe, ESP and pH

Publication year

2012

Pages

845-860

Organization Name

Soil, Water and Environment Research Institute (SWERI)

Country

Egypt

City

Mansoura

serial title

Egypt ,J. of Soil Sci., Mansoura Univ , 3(8) 2012