Crop & Pest Report

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Soils

Severe Iron Deficiency Chlorosis (IDC) Causes in Eastern North Dakota (6/29/17)

Dr. Goos is a wonderful chemist in the NDSU Soils Department and it is his work that resulted in the first years of the regional IDC screening of varieties that Dr. Kandel now administers along with Dr. Helms, the NDSU soybean breeder.

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Protein Enhancement Recipe (06/22/17)

Flag leaves are emerged in many early seeded spring wheat fields, so one of the upcoming questions many of you will receive will concern strategies for protein enhancement.

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Options Limited for Rescue Treatments for IDC in Soybeans (06/22/17)

Reports of iron deficiency chlorosis (IDC) of soybeans are coming in. The unifoliate leaves of soybeans are usually green, being fed by iron reserves in the seed, but as the trifoliolate leaves appear, chlorosis often develops when soybeans are grown on alkaline, poorly-drained soils. Iron is very immobile in the plant, so the deficiency appears first on the youngest leaves.

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Fertilizing Alfalfa Following First Cutting (06/15/17)

The ideal time to fertilize alfalfa is following first cutting. For most of the state this is now, before regrowth takes off.

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How long can NBPT-Treated Urea Remain on the Soil Surface without Loss? (06/08/17)

Although a few areas of the state have received over ½ inch of rainfall in one event, many other areas have not.

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Nitrogen Does Not Increase Drought Stress (06/08/17)

A number of years ago, I had several grain producers earnestly tell me that they were reluctant to apply high N rates preplant because early vegetative growth caused by higher N results in earlier drought stress to small grains.

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Dust Storms throughout the State over the Weekend (06/01/17)

Although there are more farmers using cover crops, no-till and no-till systems around the state than in the recent past, the number of ‘clean-tilled’ fields is still large.

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Supplemental Nitrogen for Small Grains (5/18/17)

Growth stage of spring wheat/durum varies from near jointing in the far south in North Dakota to barely emerged in other areas.

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Plant Now, Feed Later (5/11/17)

Due to the early spring fertilizer application delayed by weather, and early planting also delayed due to snow and field wetness, all crops and all fertilizer demands are being compressed into this week and next.

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Soybean, Soil Salt and Calcium Carbonate Levels (05/04/17)

This looks to be a record soybean planting year in North Dakota.

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Apps Available For N Calculators for Spring Wheat/Durum, Corn and Sunflower (05/04/17)

The web-based N rate calculators for spring wheat/durum, corn and sunflower are still available for use

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Urease Inhibitors/Nitrification Inhibitors (05/04/17) Correction Included

There are a number of products on the market that include a urease inhibitor or nitrification inhibitor on their label.

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The Value of Straw (08/18/16)

Although the content of N, P and K are dependent on the amounts of plant nutrients available, and K content of straw decreases when rain falls on it, through it, after harvest, the following are reasonable numbers to estimate the N, P and K content of straw.

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Potassium Deficiency Symptoms in Certain Soils in Soybean and Corn (07/07/16)

In the drier areas of the state, notably Cass, Sargent and Richland counties, we have had recent calls and plant sample submission of soybean and corn exhibiting potassium deficiency symptoms.

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Purple Corn, Phosphorus, and Fallow Syndrome (06/30/16)

Some plant leaf symptoms, such as potassium deficiency nearly always showing leaf necrosis at leaf edges, are decent beginning diagnostic indicators. However, purple corn is not.

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Big Rains, Big N Worries (06/23/16)

There have been big rains in large areas of North Dakota, particularly north of Rt 2. Six inch rains in a few days, followed by 6-7 inch rains in a few days, 10-15 inches total over a few weeks.

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Thinking about a New Irrigation System? (06/16/16)

Although there are numerous aquifers throughout North Dakota, only a few have water quality that would support long-term irrigation.

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Checking For Nodulation of Annual Legumes (06/16/16)

Nodule development in annual legumes in the region is not a 100% sure thing.

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Protein Enhancement Recipe (06/09/16)

Flag leaves are emerged in many early seeded spring wheat fields, so one of the upcoming questions many of you will receive will center around strategies for protein enhancement.

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Sulfur Deficiency in a Dry Year (06/09/16)

Growers should be much more concerned about S availability in a wet year than a dry year, but yield potential of our crops is so great, and the natural inputs of S from precipitation is so low that in soils with low (less than 3%) organic matter, S can be a problem in dry years, also.

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