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Fertilizing eroded knolls

Description

Many farmers have fields dotted with eroded knolls that are relatively unproductive. This fact sheet takes a quick look at the best ways to restore the productivity of these knolls.

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Fall-applied nitrogen : risks and benefits

Description

This fact sheet provides a summary about the effectiveness of fall nitrogen fertilization.

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Fertilizer requirements of irrigated grain and oilseed crops

Description

This Agdex fact sheet contains fertilizer management information and recommendations for irrigated grain and oilseed crops based on recent field research conducted by the Agronomy Section of... More ≫

Description

This Agdex fact sheet contains fertilizer management information and recommendations for irrigated grain and oilseed crops based on recent field research conducted by the Agronomy Section of Alberta Agriculture and Rural Development. See the topic list below.

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Phosphorus fertilizer application in crop production

Description

For optimum crop production, an adequate supply of P close to the seed during the first six weeks of growth and an adequate amount of P in the soil for the rest of the season are ideal. Placement... More ≫

Description

For optimum crop production, an adequate supply of P close to the seed during the first six weeks of growth and an adequate amount of P in the soil for the rest of the season are ideal. Placement of P in-row with cereal and oilseed crops has been the traditional method used for P fertilization in Alberta. Pre-plant banding of P with nitrogen has been found to be a good alternative method of application under certain conditions. However, under conditions of low to medium soil P coupled with low soil temperatures, 'starter' P in the seed row is frequently very beneficial for annual crops.

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Managing cow-calf operations to protect water quality

Description

Manure is a valuable nutrient source to a farm. However, manure contains nutrients, organic matter and micro-organisms that can contaminate water supplies.

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Managing phosphorus to protect water quality

Description

Phosphorus is an important nutrient for plant growth. In aquatic systems, a lack of phosphorus often limits aquatic plant growth. When phosphorus is used up in fresh water, aquatic plant growth... More ≫

Description

Phosphorus is an important nutrient for plant growth. In aquatic systems, a lack of phosphorus often limits aquatic plant growth. When phosphorus is used up in fresh water, aquatic plant growth will stop no matter how much nitrogen is available. Conversely, nitrogen limits crop production. Only a small amount of phosphorus (measured in parts per billion) in fresh water can cause algal blooms and aquatic weed growth. Phosphorus is the nutrient that limits plant growth in aquatic ecosystems. Nitrogen is the primary nutrient that limits terrestrial plant growth.

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Manure management to protect water quality

Description

Manure use can provide an economic return to the farmer and be beneficial to the environment. When manure is applied according to crop demand and at the appropriate times, manure can provide some... More ≫

Description

Manure use can provide an economic return to the farmer and be beneficial to the environment. When manure is applied according to crop demand and at the appropriate times, manure can provide some of the nutrients required by many crops. Manure also increases soil organic matter and improves soil structure. However, manure can be a pollutant if it reaches surface water (such as streams, rivers or lakes) or leaches past the root zone of crops and into shallow groundwater.

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