เนื้อหาที่เพิ่มเติมในตัวรายงาน

1. Change in mineralogical properties and charge characteristics affected by burning practice.

Discussion on

1. Soil properties readily affected by land use

• Chaning in fertility status during twio years of crop cycling
• Indicator for evaluating a short-term soil productivity potential

2. Mineralogical properties and charge characteristics referring to soil productivity potential

• Indicator for evaluating a long-term soil productivity potential