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Posts From Larry Oldham, Extension Soils Specialist

Soil Properties and Runoff

Soil Properties and Runoff

🕔14:55, 21.Aug 2020

Soils are the environmental regulators of rain: when it falls, soil properties determine if it goes into the soil (infiltration) or across the surface (runoff). In the runoff water there may be sediment and whatever is attached to it, nutrients

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Nutrient Use Efficiency: or Dude! Where is My Fertilizer?

🕔10:40, 17.Jul 2020

One of the more difficult messages we must tell farmers: “You know all that money you just spent on fertilizer? Only some of it is going to be used by your crop this year.” With nitrogen (N), up to half

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How to Manage Nitrogen Fertilizer for Corn During Wet Weather

How to Manage Nitrogen Fertilizer for Corn During Wet Weather

🕔09:52, 25.Apr 2020

Corn response to nitrogen fertilizer is a dynamic situation that becomes extremely challenging when rainy weather restricts field operations and saturates soils even longer than normal. This article gives recommendations to improve corn response to nitrogen fertilizer and reduce risk when adverse weather occurs.

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MSU Revises Soybean K Fertility Recommendation

MSU Revises Soybean K Fertility Recommendation

🕔10:15, 16.Jan 2020

The Mississippi State University Extension Soil Testing Laboratory has revised the soil test-based potassium fertility recommendations for soybeans in Mississippi. This announcement by Dr. Keri Jones is the culmination of many years of work supported by the Mississippi Soybean Promotion

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Use the CCA App to Get Your CEUs

Use the CCA App to Get Your CEUs

🕔11:06, 3.Oct 2019

Although it has been a little warm, winter meeting season is approaching. Certified Crop Advisers can be prepared to get the proper credit for their CEU’s. Do this before the meetings. #mscrops

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Think about liming this fall

🕔10:46, 20.Aug 2019

Acid soils will benefit from liming to aid crop growth and development. If a current soil test has a lime recommendation, applying in the fall provides more time for the lime to react with the soil, less management stress, and

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Practices which Can Increase Nitrogen Use Efficiency for Mid-South Corn

Practices which Can Increase Nitrogen Use Efficiency for Mid-South Corn

🕔17:10, 26.Apr 2019

Corn productivity may vary considerably depending on what fertilizer source, timing and application method you use. This article discusses how to improve corn response to nitrogen fertilizer and reduce risk of losses.

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Fertilizing Crops with Poultry Litter

🕔10:48, 12.Mar 2019

Poultry litter has been used to produce Mississippi crops for decades. However, most often it has fertilized hay and forage crops grown near the production facilities. The increased volatility of inorganic fertilizer prices circa 2008 led to more interest and use

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Burning Stalks – What does it Really Cost?

Burning Stalks – What does it Really Cost?

🕔09:03, 13.Sep 2017

After harvest, you immediately face management decisions which may have considerable effect on future productivity. Corn produces far more residue than most crops we are accustomed to, so it possesses considerable benefits, or may create anxiety depending upon how you view it. This article addresses the pro’s and con’s of crop residue and associated management options, including burning.

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Are you Behind on your Corn “Tassel Shot” Application?

Are you Behind on your Corn “Tassel Shot” Application?

🕔11:56, 22.May 2017

The Mississippi corn crop is generally on pace to tassel earlier than normal this year. Thus, how may this affect how the corn will respond to mid-season application of various management inputs, including nitrogen fertilizer and other products? This article will discuss factors and distinct scenarios that could dramatically effect realistic corn response.

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Importance of Nitrogen Timing and Methods for Southern Corn

Importance of Nitrogen Timing and Methods for Southern Corn

🕔12:51, 7.Apr 2017

Nitrogen application timing, method, and fertilizer source may all significantly impact how your corn crop responds to fertilization. This article discusses how to improve corn response to nitrogen and reduce risk.

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When is the Best Time for the “Tassel Shot” on Corn?

When is the Best Time for the “Tassel Shot” on Corn?

🕔12:47, 31.May 2016

Many corn growers are implementing different “tassel shot” inputs as part of their management program. Questions often arise regarding how critical the application timing is, especially when weather or other issues may complicate timing of such inputs. This article discusses situations when application timing may be very important, as well as those when precise timing is not critical.

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How to get the Best Return on your Corn Nitrogen Dollars

How to get the Best Return on your Corn Nitrogen Dollars

🕔16:50, 5.May 2016

Your crop response to nitrogen fertilizer may vary considerably since our environment is very conducive to nitrogen loss. This article describes methods to optimize corn yield response to nitrogen fertilizer application.

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Broiler Litter as Fertilizer for Row Crops

Broiler Litter as Fertilizer for Row Crops

🕔09:36, 3.Mar 2016

Extensive research has been conducted with poultry litter as a nutrient source for row crops within Mississippi. Mississippi ranks among the top five states in both numbers of broiler chickens grown and quantity of meat produced. Broiler production primarily is

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Considering Soil Health

🕔15:16, 19.Feb 2016

About 250 different soils have been identified in Mississippi. Soils differ across landscapes because each soil is a site-specific product of five fundamental factors – parent material, local biology, topography, climate, and time. Biological, chemical, and physical processes are continuous.

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Soil pH and lime requirements are soil health assessments

🕔15:09, 3.Feb 2016

Two long-time soil fertility measurements are also soil health assessments. Soil pH and lime requirement are long recognized as the foundation of nutrient management as acid soils often need liming to aid crop growth and development. Soil organisms crucial to

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How much Nitrogen have I Lost from Saturated Soils?

How much Nitrogen have I Lost from Saturated Soils?

🕔09:41, 5.Jun 2015

Abundant rainfall has soaked corn fields for extended time during April and late May, exposing nitrogen fertilizer to potential loss. This article gives guidelines for estimating potential N loss.

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What is Appropriate Timing for the “Tassel Shot” on Corn?

What is Appropriate Timing for the “Tassel Shot” on Corn?

🕔15:58, 29.May 2015

More growers are implementing different “tassel shot” inputs as part of their corn management program. Wet weather and other issues may further complicate application timing of such inputs. This article discusses whether specific timing makes a big difference or not?

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Use a Sound Corn Nitrogen Strategy to Combat Rainy Weather

Use a Sound Corn Nitrogen Strategy to Combat Rainy Weather

🕔17:31, 24.Apr 2015

Abundant spring rainfall can create havoc with corn nitrogen management by delaying fertilizer application and also promote massive nitrogen loss. These strategies should help enhance crop response during challenging conditions.

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Everything Old is New Again – Fertilizer Costs

🕔13:19, 27.Mar 2015

It is not just a song, a new conversation about an old concept is happening in soil fertility management. I started working with soils/soil fertility/nutrient management/soil management 29 years ago this March at the West Kentucky Research and Extension Center

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Lower Cost for Poultry Litter Analysis in Mississippi

🕔16:04, 4.Dec 2014

Earlier this year the Mississippi State Chemical Laboratory lowered the fee for poultry litter analysis. Nutrient content of litter used for fertilizer varies up to 60%. Crop producers should have a recent analysis of litter so appropriate land application rates

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Lime Need and Value

🕔13:45, 3.Sep 2014

Acid soils often need liming to aid crop growth and development. Fall applications provide more time for the lime to react with the soil, less stress on the human component, and better field conditions  for equipment operation. Soil acidity problems

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Fall 2014 Lime Programs

🕔14:19, 28.Aug 2014

With harvest beginning, it is time to think about the next crop. Fall liming allows time for the soil to react before the next summer crop is planted, and takes advantage of the (usually) drier conditions for field operations. Soil

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Tips to Improve Nitrogen Response for Mid-South Corn

Tips to Improve Nitrogen Response for Mid-South Corn

🕔11:59, 12.May 2014

Considering the abundant rainfall we experienced during April and typically have, it is usually very important to optimize nitrogen fertilizer management. This newsletter discusses best management practices for corn nitrogen fertilization. These recommendations reduce the risk of nitrogen loss and can improve crop response when wet weather is prevalent during the spring.

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2014 Spring Nitrogen Fertilizer Recommendations for Wheat

2014 Spring Nitrogen Fertilizer Recommendations for Wheat

🕔09:03, 26.Feb 2014

Wet, saturated soils and variable environmental conditions certainly complicate issues associated with nitrogen fertilization of wheat fields in the Mid-South. This article gives guidelines for getting better wheat response to your fertilizer dollars.

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