Week 1 - Basic Soil-Plant Relationships (ENR 5270)
27:19
Week 1 - Ion Exchange in Soils (ENR 5270)
32:42
Week 2 - Soil Testing (ENR 5270 - Soil Fertility)
41:39
Week 2 - Plant Testing (ENR 5270 - Soil Fertility)
8:28
Plant Nutrients
5:49
Agroforestry in Semi-Arid Farming Systems: Maximizing Soil Fertility and Crop Productivity
51:12
Soil Acidity: Causes, Components, & Consequences
21:40
Week 14 - Using Poultry Manure (ENR 5270)
7:15