Agronomy Notes

Alfalfa: Boron for profitable alfalfa

Agronomy Notes

Alfalfa has a higher boron requirement than most crops. For optimum yields of high quality alfalfa, it is essential to maintain adequate supplies of available boron throughout the growing season.

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Amounts of Solubor to mix into spray tanks to supply desired boron rates

Agronomy Notes

Solubor is highly water soluble, and is commonly applied in foliar sprays. Because the season for the most effective foliar application of boron is short, foliar sprays must be prepared quickly and accurately.

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Apples: Boron applications for increased production

Agronomy Notes

Apples require an adequate supply of available boron, especially during flower formation and fruit set. Learn how foliar sprays such as Solubor during the dormant season, pre-pink, and early bud stages can ensure an adequate supply of boron.

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Bermudagrass: Boron applications

Agronomy Notes

Some bermudagrass varieties may respond to applied boron, especially on sandy soils in high rainfall regions, or with adverse weather conditions during the growing season. Where needed, preplant application of Granubor with the early-season top-dressed NPK fertilizer generally will ensure an adequate boron supply.

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Boron deficiency symptoms

Agronomy Notes

Plants initially may not exhibit obvious symptoms of boron deficiency. When moderate or severe boron deficiency occurs, most crops exhibit visible symptoms. Knowledge of boron deficiency symptoms can help in diagnosing deficiencies.

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Boron mobility in various plant species

Agronomy Notes

Plant uptake of boron is a passive (non-metabolic) process and boron is transported in the xylem vessels (transpiration stream) of all plant species. Therefore, boron is mobile in the xylem system of all plants.

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Boron reactions in soils

Agronomy Notes

Organic matter is the storehouse for most of the available boron in soils. Boron deficiencies in crops are found mainly in low organic matter soils and in acid, sandy soils in humid regions.

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Corn: Boron applications for increased yields of high-yield field corn and sweet corn

Agronomy Notes

Boron aids in the transfer of sugars and nutrients from leaves to reproductive organs, and increases pollination and seed development. Corn requires a supply of available boron, especially during tasseling and silking.

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Differences in boron fertilizer sources

Agronomy Notes

To determine the optimum rate and method of applying sufficient boron for optimum yields, growers need to know the relative boron needs for their crops.

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Does manure contain enough boron?

Agronomy Notes

Animal manures contain varying concentrations of most plant nutrients.

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Effects of sodium in borax on soils and crops

Agronomy Notes

Sodium is found in all soils and crops. Soils in humid regions, where most boron deficiencies occur, contain about 50-150 lbs/acre of sodium in the surface 6-inch layer, but soils in drier regions may contain higher levels of sodium.

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Fertilize before boron deficiency symptoms occur for optimum yields

Agronomy Notes

Visual symptoms of boron deficiency may not occur until the deficiency has become moderate or severe. Use the results of soil tests and/or plant analyses to help assess the potential for boron deficiencies to ensure adequate boron supplies for your crop.

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