Answer
$3.031\;metric\;tonne/ha$.
Work Step by Step
The given value is
$=45\;bu/acre$
Covert the given value to $kg/ha$
First convert $bu$ to $lb$.
Second convert $lb$ to $kg$.
Third convert $acre$ to $ha$.
$=45 \frac{bu}{acre}\times \frac{60\;lb}{1\;bu}\times \frac{1\;kg}{2.20\;lb} \times \frac{2.47\; acre}{1ha}$
Simplify.
$=3031\; kg/ha$.
Covert the above value to $metric\; tons/ha$
Use $1000\;kg=1\;metric\; tonne$
$=3031 \frac{kg}{ha}\times \frac{1\;metric\; tonne}{1000\;kg}$
Simplify.
$=3.031\;metric\;tonne/ha$.
