BAL HARBOUR, FLA., FEB. 15 -- House Speaker Jim Wright (D-Tex.) said today he has reached agreement with key congressional leaders on a legislative schedule designed to bring the trade bill to a floor vote by the end of next month.

Wright, in a news conference after meeting with the AFL-CIO Executive Council, said that all the House committee chairmen in the trade bill conference report have agreed to try to settle their portions of the legislation no later than March 23.

He said Senate Majority Leader Robert C. Byrd (D-W.Va.) and Senate Finance Committee Chairman Lloyd Bentsen (D-Tex.) also have agreed to the timetable.

Trade legislation was approved by the House and Senate last year. The bills are now before a joint House-Senate conference committee to work out the differences between them.

Wright predicted that any eventual trade bill would involve a compromise on the controversial Gephardt amendment. The amendment, sponsored by Rep. Richard A. Gephardt (D-Mo.), would force the president to take retaliatory economic measures against countries with large trade surpluses with the United States.

The amendment is endorsed by organized labor but has been attacked by its critics as protectionist.

AFL-CIO President Lane Kirkland indicated today that organized labor might be willing to go along with some compromise on the Gephardt amendment. "Whenever a conference of 190 {congressional members} meets, I presume that there will be a variety of views to be reconciled," Kirkland said. "But we continue, with the support of the speaker, to insist that whatever comes out must be substantive, must be forceful and must be effective, and not simply an expression of pious good wishes."

The Senate version of the bill removes many mandatory provisions of the Gephardt amendment.

To work out the legislative timetable Wright said, "I had a meeting this past week with the chairmen of each of those committees {involved in the trade bill} and encouraged them to have all of the sub-agreements nailed down by the week of March 23 and then have it on the floor the following week. We want to pass the conference report before the end of March; that's our target."

The speaker said he also met with White House officials and told them of the new timetable. At the same time, Wright promised the Reagan administration he would bring the Canadian trade agreement to a vote in the House this year. He said he made the agreement after working out a system for hearings on the Canadian accord with the appropriate congressional committees.

"We have arranged a plan for systematic consideration of the Canadian agreement. I have given them {the White House} my assurances that the agreement will be voted on this year," Wright said. "In exchange for that they have agreed to consult with the appropriate congressional committees and engage in hearings."

The Canadian accord is opposed by organized labor on both sides of the border. Unions in both countries are concerned that the trade pact would result in a loss of jobs.

Wright said the trade measures would be kept on "two separate tracks." He said he would try to get a vote on the Canadian agreement before the August recess "but in any event we will give them a vote before adjourning."