Wheat (Triticum aestivum L.) is one of the most important food grain
crop grown in the world. It ranks first in the world cereal crops
accounting for 30% of all cereal food worldwide and is a staple food for
over 10 billion people in as many as 43 countries of the world. It
provides about 20% of the total food calories for the human race (S.R.
Reddy 2004). It is also a significant source of carbohydrates and
nutrition both for human beings and animals. Its straw constitute an
essential part of livestock feed as well as for paper making. Due to its
immense and multipurpose use in daily life, the Prosperity and well
being of pakistan depends upon good harvest of wheat. In view of the
importance of the irrigation and nitrogen for crop production present
study is planned with the following objectives. 1. To determine the
optimum water and nitrogen requirement of the wheat crop. 2. To identify
the growth stages in wheat more sensitive to water deficit conditions.
3. To determine the effect of different levels of irrigation and
nitrogen on growths, radiation use efficiency (RUE) and yield of wheat.