Fertilizer Use Guide

The Efficient Fertilizer Use Guide is a comprehensive library covering the fundamentals of balanced crop nutrition and the 4R's of nutrient management. You can learn about specific crop nutrients, fertilizer types, and soil pH, testing, and sampling.

Soil Defined

Soil occurs naturally and is made up of layers (soil horizons) consisting of minerals and organic matter. Soil feeds the land, allowing plants to grow and thrive.

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Soil pH

Soil pH is a measure of the acidity and alkalinity in soils. pH levels range from 0 to 14. The optimal pH range for most plants is between 5.5 and 7.0.

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Soil Testing

Soil testing is an important tool in high-yield farming. Soil test results provide the basic facts on which fertilizer to use and determines lime needs.

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Soil Sampling

Soil sampling and testing provides an estimate of the capacity of the soil to supply adequate nutrients to meet the needs of growing crops.

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Plant Analysis

Plant analysis refers to the measurement of essential nutrient content of plant tissue by laboratory analysis.

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Phosphorus

Phosphorus is essential for all living organisms. A plant must have phosphorus to complete its normal production cycle.

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Nitrogen

Nitrogen is an essential nutrient for plant growth, development and reproduction. Unfortunately, it’s the most deficient essential plant nutrient worldwide.

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Potassium

Potassium (K) is required for plant growth and reproduction. Potash is defined as K20 and is used to express the content of various fertilizier materials containing K.

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Secondary Macronutrients

The need of calcium, magnesium and sulfur has increased due to the demands of today’s high-yield crop systems. They are essential to plant productivity.

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Micronutrients

Micronutrients are essential for plant growth and play an important role in balanced crop nutrition. They are as important to plant nutrition as primary and secondary macronutrients.

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Site-Specific Nutrient Management

Site-specific management is a component of precision agriculture that allows for fine-tuning crop management systems along with 4R…

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Fluid and Dry Fertilizers

When comparing fluid fertilizers vs. dry fertilizers, benefits should be based solely on crop yield obtained when all environmental factors are equal.

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4R Nutrient Stewardship

4R Nutrient Stewardship promotes using the right fertilizer source, at the right rate, at the right time, and in the right place.

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