Page 9 - Ilmu Tanah

viii The Chemistry and Fertility of Soils under Tropical Weeds

Detailed Contents

Chapter 1
Introduction, 1

1.1 The General Chemistry of Soils, 2
1.2 Weed Effects on the Chemistry and Fertility of Soils, 13
1.3 Scope of The Chemistry and Fertility of Soils under Tropical
Weeds, 17

Key Questions, 17

Chapter 2

The Soil – Weed Interrelationships, 20

2.1 The Soil – Water – Nutrient – Weed Relationships, 21
2.2 The Release of Nutrient Elements from Soil Minerals and
Organic Matters, 23
2.3 The Effect of Weeds on Nutrient Element Release from Soil
Minerals and Organic Matters, 32
Key Questions, 33

Chapter 3

The Important Facts about Tropical Weeds, 35

3.1 The Concept of Weeds, 38

3.2 Weeds as Pioneer Vegetation, 38
3.3 General Effects of Tropical Weeds on the Soil Environment, 42

Abdul Kadir Salam and Nanik Sriyani – 2019