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Calcium Product 98G

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How to repair sodic soils

Sodium problems are becoming more widespread Sodic soils are one of the most difficult challenges facing turf managers in areas where they exist. With the rise of effluent water use for golf course and athletic field irrigation, sodium problems are becoming more widespread than they were in the past. High levels of sodium create a toxic environment for plant health and destroy the physical structure of soils. Sodium becomes a problem when it reaches levels that overwhelm the natural equilibrium of the soil. It causes soil clay particles to swell and disperse, causing soil pores to become blocked, limiting water infiltration and drainage of the soil. Plants trying to grow in sodic soils exhibit symptoms of drought due to excessive uptake of sodium and lack of water infiltration into the soil where roots normally grow. Check out our document on using SO4 and 98G to manage sodium affected soils. Del…
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Can 98G and SO4 be Applied on Frozen Ground?

We are often asked about applying our products on snow-covered or frozen ground. While it may seem intuitive that products should not be applied to frozen ground, in general, applications can be made during late fall or winter and have similar considerations as other times of the year, such as water and ground conditions. When determining if conditions are adequate to apply SO4 and 98G, keep these considerations in mind. Potential for water runoff Water influences movement of surface applied inputs. When water has potential to runoff and not infiltrate, then perhaps applications should be delayed. Late fall and early winter before the ground is completely frozen can be a good time to make applications. As long as there’s not a substantial amount of snow on the ground (less than 6 inches), applications of 98G and SO4 can still be made. If snow comes early, there’s potential that it will…
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Take the 98G Challenge – See How Your Aglime Stacks Up.

Do you know how effective your aglime is in changing soil pH? Below are two photos comparing 98G, our pelletized lime product, to aglime being spread in a field near Boxholm, Iowa. The photos illustrate that the finest particles in aglime, although the most effective at changing soil pH, are subject to significant drift loss. 98G is pelletized for uniform distribution out of application equipment resulting in ideal spread and solubility. It also has the ability to be mixed with other dry fertilizers. Learn more about the 98G Challenge and request an aglime sample collection kit.   98G, October 18th, 5-10 mph winds.   Aglime, October 19th, 10-15 mph winds.
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Applying Nitrogen to Enhance Corn Residue Decomposition: Does it Work?

  Applying nitrogen in the fall to enhance corn residue decomposition occurs with some frequency in the Midwestern United States. The purpose of this application (normally applied as AMS or UAN) is to deliver a nitrogen source to feed microbes and increase the speed at which corn residue is decomposed. The main reason this topic seems more prevalent in recent years may be related to current hybrids and farming practices. Modern genetics have selected for stronger stalks and larger plants, while increases in corn-on-corn rotations and reduced tillage have resulted in more residual biomass. Combined, these result in greater demand on microbes to minimize the impact of residue on the following season's operations. Rationale Behind "Stalk Burndown" The rationale behind applying N to aid in stalk decomposition is related to the carbon-to-nitrogen (C:N) ratio, which indicates how effectively microbes decompose different materials. The C:N ratio is important because it denotes how…
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Soil pH – The Foundation for Nutrient Availability

Every nutrient's availability is affected by soil pH. Soil pH is the foundation and main governing parameter of soil fertility. Every nutrient’s availability to plants is affected by soil pH – some more so than others – which is why correcting and maintaining soil pH at adequate levels is so important. Phosphorous (P) availability is the most affected nutrient by pH because the chemistry of P is such that it loves to react with other minerals in the soil at varying pH levels. At high pH, P is very attracted to calcium, while at low pH, P is very attracted to aluminum and iron. When P reacts with calcium, aluminum, or iron, it forms insoluble compounds that plants cannot easily access. Nitrogen (N) and Potassium (K) are also affected by pH, but not in the same way as P. At low pH, aluminum and iron increase in availability and “out-compete”…
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