Hay , Pasture and Alfalfa and Bio-Activated Liquid Calcium
Texas Agricultural Extension, Texas, A & M University System.
“The increased ammonium absorption caused by calcium has interesting results. Photosynthesis
increases (Fig.1) and greater amounts of carbon dioxide are captured by the plant from the air,
which increases the plant’s organic building blocks (Fig. 2).
When plants absorb more ammonium, less nitrogen remains in the soil and is subject to leaching.
Also, surplus nitrogen absorbed by plants is stored and is available to promote growth all season.
In trials, both bermudagrass and ryegrass showed this effect, with denser growth and color (chlorophyll-photosynthesis) throughout the season.”
Has research data changed recommendations for providing calcium?
By Glen Harris and John Beasley, University of Georgia, and Julie Howe, Auburn University
“Finally, over the last three years, a new technique of using liquid calcium chloride or calcium thiosulfate through the pivot during peak pod fill has been tested at UGA and has shown promise for providing calcium to the pegging zone. If gypsum becomes in short supply, this method may be a valuable alternative for calcium application. ...
“Putting these “liquid calciums” through a center pivot is a soil-applied application. When putting out that much water per acre, even though it hits the leaves initially, it basically runs off and is applied to the soil. Think of it this way, when you foliar feed, you apply approximately 10 gallons per acre final spray volume. When you apply one acre-inch, you are applying approximately 27,000 gallons of water – a huge difference.”
Regarding Plant Root Growth and Nutrient uptake resulting from Calcium Chloride Application.
Ray E. Lamond and Dale F. Leikam, Chloride in Kansas: Plant, Soil, and Fertilizer Considerations, Kansas State University
“Chloride, an often-overlooked nutrient, is essential for plant growth. Deficiencies of this nutrient have been verified in Kansas. Chloride is essential for photosynthesis and serves other critical roles in plants. Plants take up chloride as the Cl- ion. This ion is very mobile in the soil and is subject to leaching. Soil testing and plant analyses have proven useful in identifying potential deficiencies of chloride. Recent Kansas research has verified a need for chloride fertilization on some soils. Chloride recommendations are based on soil test chloride levels. If supplemental chloride is needed, several sources of chloride fertilizers are available, but potassium chloride is the most readily available”
Texas A&M University Sam E. Feagley and Lloyd B. Fenn
“Roots can be killed, but usually they grow around the fertilizer bands. After the soil microbes have converted much of the banded ammonium to nitrate, then the roots can begin to use the nitrogen. When extra soluble calcium is applied with the fertilizer it lowers the pH of the fertilizer band, thus reducing its toxicity. If calcium is applied beyond precipitation requirements, it stimulates ammonium absorption by plants.”
Plant health and growth;
Dr. Easterwood is national agronomy manager at Hydro Agri North America, Inc., Tampa, Florida.
“Uptake can be enhanced by applying calcium in the soluble form (i.e., calcium nitrate or calcium chloride, either of which is immediately available for uptake). With many rapidly growing crops, insoluble sources will not provide adequate calcium fertility. Disease reduction Many fungi and bacteria invade and infect plant tissue by producing enzymes that dissolve the middle lamella. Enzymes responsible for dissolving the middle lamella include polyglacturonases and pectolytic enzymes such as pectate transeliminase.
Absorption of nutrients is vital to plant health and growth as we can read from;
Texas Agricultural Extension, Texas, A & M University System study.
“Calcium increases ammonium, potassium and phosphorus absorption, stimulates photosynthesis, and increases the size of sell-able plant parts. It also makes the use of nitrogen more efficient, which improves the economics of production and reduces nitrogen contamination of the environment.”
“Research has shown that applying soluble calcium with urea, an ammonium form of nitrogen, can improve crop production. Calcium increases ammonium, potassium and phosphorus absorption, stimulates photosynthesis, and increases the size of sellable plant parts. It also makes the use of nitrogen more efficient, which improves the economics of production and reduces nitrogen contamination of the environment.”
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