Agro-environmental Fertilization Guide

Modalities of Sampling and Soil Analysis

1. Soil Sampling Method

1.1 Sampling Frequency
1.2 Sampling Period
1.3 Preparation for the Taking of Samples
1.4 Nature of the Soil
1.5 Sample Taking
1.6 Situations Requiring Special Attention

2. Field Soil Sampling Report

3. Soil Analysis Methods

Determination of Aluminium and Phosphorus Available in the Soil Using the Mehlich III Method

3.1 Introduction
3.2 Equipment and Reagents
3.3 Procedure

4. Soil Phosphorus Saturation Percentage

Assessment of the Phosphorus Content in the Harvested Portion of Crops

Monitoring of Phosphorus Required in an Agro-Environmental Fertilization Plan

1. Calculation of Expected Changes in Soil Phosphorus Content and Saturation Percentage

1.1 Changes in Soil Phosphorus Content
1.2 Changes in Soil Phosphorus Saturation Percentage
1.3 Periods and Modalities

2. Regular Monitoring of Soil Phosphorus Content and Saturation Percentage

3. Determination of Phosphorus Reception or Excess Capacity of an Agricultural Operation

3.1 Phosphorus Reception Capacity of an Agricultural Operation
3.2 Phosphorus surplus of an agricultural operation
3.3 Period and Modalities