Protocol Phosphate condition

Within this project, a protocol will be drafted that allows the phosphate status of agricultural soil to be determined.. With this information, the phosphate application standards can be regulated as part of the Manure Act.


User standards for nitrogen and phosphate are determined to regulate the supply of nitrogen and phosphorus in line with crop needs. However, in several Dutch protocols for determination of the status of phosphate in arable soil, the buffering capacity of the soil was not taken into account. The goal of this project is (1) to provide a standardized system to determine the differences in buffering capacity of Dutch soils that is applicable to grass and arable land, (2) the calibration of this system, and the drafting of a protocol for the determination of the phosphate status of the soil in which  the buffering capacity of the soil is taken into account.