Fix for slow runLupin

	<SimulaDirective path="/plantTemplate">

		<SimulaVariable name="rootWaterUptake" unit="cm3"

			function="plantTotal" />

		<SimulaDerivative

		<!-- the root lengthprofile function will be plant specific if it is inside a plant -->

		<!--  this makes runLupin very slow, with little gain in precision, better turn off -->

		<!-- SimulaDerivative

			name="rootLengthBelowTheSurface"

			unit="cm"

			function="rootLengthProfile">

			<!-- function will be plant specific if it is inside a plant -->

			<SimulaConstant name="y1"> 0</SimulaConstant>

			<SimulaConstant name="y2"> -100000000</SimulaConstant>

		</SimulaDerivative>

		</SimulaDerivative-->

	</SimulaDirective>

	<!--ShootTemplate -->