If the county assessor is notified or otherwise becomes aware that a parcel or any portion of a parcel of real property which has received agricultural or open-space use assessment has been converted to a higher use, the county assessor shall add to the tax extended against that portion of the property on the next property tax statement the deferred tax, which is the difference between the taxes that would have been paid or payable on the basis of the agricultural or open-space use valuation and the taxes which would have been paid or payable on the basis of the taxable value calculated pursuant to NRS 361A.277 for each year in which agricultural or open-space use assessment was in effect for the property during the fiscal year in which the property ceased to be used exclusively for agricultural use or approved open-space use and the preceding 6 fiscal years. The county assessor shall assess the property pursuant to NRS 361.227 for the next fiscal year following the date of conversion to a higher use.