Integrated Crop Management News

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Managing Manure Storage Structures During Wet Weather

June 12, 2008

By Robert Burns, Department of Ag and Biosystem Engineering 

During excessively high rainfall periods Iowa producers with open manure storages should closely monitor manure levels to prevent these structures from over-topping.

Good Seed Supply Available from Most Companies in Iowa

June 12, 2008

By Palle Pedersen and Roger Elmore, Department of Agronomy

Excessive rainfall in Iowa over the last 2 months has challenged most farmers, agronomists, extension workers, and researchers. With another front of storms moving into Iowa today (June 11) we do not know when we will be able to get back into the fields. Our best estimate is that it will first be next week at the earliest.

Estimating Nitrogen Losses

June 11, 2008

By John Sawyer, Department of Agronomy

One method to judge nitrogen (N) loss is to calculate an estimate. Predicting the exact amount is quite difficult as many factors affect losses. However, estimates can provide guidance for supplemental N applications.

Rainfall has Affected Hay and Hay-Crop Silage Harvest

June 10, 2008

By Stephen K. Barnhart, Department of Agronomy

Hay is an agricultural product that varies greatly in nutritional quality. The ‘hay market’ frequently uses descriptive terms like ‘dairy quality,, ‘beef-cow quality’ or more quantitative terms like ‘premium,’ ‘good’, and ‘fair’; which have some forage testing guidelines to place hay lots in these categories.

Nitrogen Loss – How Does it Happen?

June 10, 2008

By John Sawyer, Department of Agronomy

Much of Iowa is experiencing excessively wet conditions this spring. With the continued large rainfalls and flooding conditions, nitrogen (N) loss is an issue. While the wet period early this spring had an influence on N in the soil, excessively wet conditions now are especially critical for N losses due to warm soils and considerable conversion of applied fertilizer and manure N to nitrate.

Summer Flooding of Hay Fields and Pastures

June 10, 2008

By Stephen K. Barnhart, Department of Agronomy

Most forage crops perform best when soils have adequate, but not excessive, soil moisture. Standing water, flowing water and waterlogged soils following heavy summer rainstorms or extended periods of higher than normal rainfall patterns can all cause management concerns for forage crops.

Management Suggestions

Economic Impact of Delayed and Prevented Planting

June 10, 2008

By William Edwards, Department of Economics

Most crop producers know that to achieve optimum yields it is important to plant early. However, in years like this when cold weather or frequent rains prevented tillage and planting from being completed, some adjustments may be made to the amount of coverage provided by Multiple Peril Crop Insurance (MPCI) as well as other types of crop insurance. These adjustments are subject to revision each year by the Risk Management Agency and crop insurance vendors.

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