Execute csproj file with argument - msbuild

Question

I need to execute 1 csproj from my solution use MsBuild with command line argument.
I created the file with MsBuild run command:
<?xml version="1.0" encoding="utf-8"?>
<Project ToolsVersion="14.0" DefaultTargets="Build" xmlns="http://schemas.microsoft.com/developer/msbuild/2002">
<PropertyGroup>
<Version>1.2.0</Version>
</PropertyGroup>
<Target Name="Build" >
<MSBuild Projects="$(ProjectFolder)\Proj1.csproj" Properties="Configuration=Release" />
</Target>
</Project>
And I added into proj1.csproj file the following attribute:
<?xml version="1.0" encoding="utf-8"?>
<Project ToolsVersion="14.0" DefaultTargets="Build" xmlns="http://schemas.microsoft.com/developer/msbuild/2002">
<PropertyGroup Condition=" '$(Configuration)|$(Platform)' == 'Release|AnyCPU' ">
<PlatformTarget>AnyCPU</PlatformTarget>
<OutputPath>bin\Release\</OutputPath>
<StartArguments>TestArg1</StartArguments>
</PropertyGroup>
</Project>
And exeute the build. But in my app I can't see the argument
class Program
{
static void Main(string[] args)
{
Console.WriteLine($#"Test - {args[0]} - end");
}
}
In Console I see the:
"Test - - end"
What I do wrong?