RESPONE OF WHEAT PRODUCTIVITY TO DIFFERENT LEVELS OF SOIL MOISTURE REGIME AND MINERAL NITROGEN FERTILIZATION UNDER THE NILE ALLUVIAL SOILS.

Document Type : Research articles.

Authors

Soil, Water and Environment Institute, Agricultural Research Center.

Abstract

A field experiment was conducted during two successive
seasons of 2004/2005 and 2005/2006 at Sids Agric. Res. Station BeniSuef to study the response of wheat yield (grain and straw yields), its
components (number of spike/m2, number of grains/spike, grains
weight/spike and 1000-grain weight), water consumptive use (WCU)
and water use efficiency (WUE) to three levels of moisture regime
(irrigation at 25-30, 50-55 and 75-80% of available soil moisture
depletion) and nitrogen (50,75 and 100 kg N/fed.) under the
prevailing conditions of the clayey Nile alluvial soil.
The most important results could be summarized as follows:
1- Irrigating the soil at 50-55% depletion of the available water range
(SMD) produced the greatest values of number of spike/m2,
number of grains/spike, grains weight/spike, 1000-grain weight,
grain yield and water use efficiency.
2- The highest values of straw yield and water consumptive use were
recorded when plants subjected to irrigate at 25-30% SMD.
3- Increasing nitrogen levels up to 100 kg/fed. produced high
increases in each of the studied plant characters as well as
improved water consumptive use and water use efficiency.

Keywords

Fayoum Journal of Agricultural Research and Development
Volume 23, Issue 1
January 2009
Pages 94-105

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