2.1 Soil Water Holding Capacity

2.2 Storage of Water and Nutrients

2.4 Key Nutrients

2.5 Factors that influence your nutrient decisions

2.6 Principles of Nutrition

2.7 Nutrient roles in crop production

2.8 How Nutrients Work

2.9 Nutrition Hot Spots

2.10 Soil Tests

2.11 Plant tests

2.12 Check Your Yield

2.5 Factors that influence your nutrient decisions

Many interacting factors need to be considered when making a nutrient decision. The following information has been put together to help your consideration of each factor in making a nutrient decision.

Soil Factors

Soil type
Structure and depth
pH
Nutrient status

Paddock Factors

Previous crops and nutrient use
Crop residue level and plant type
Rainfall total and frequency
Disease and weed levels

Crop Factors

Crop choice
Production objectives, potential yield and quality
Growth stage

Other factors

Application method
Fertiliser source/product
Price and marginal returns

2.5 Factors that influence your nutrient decisions

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