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Soil Fertility

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Yield Impact of Seed-placed Nitrogen Fertilization of Wheat

ESN was the only slow release N fertilizer that showed no negative impact when applied with seeds, even at 90 lbs N.

Considerations for Use of Enhanced Efficiency Nitrogen Fertilizers

Many formulations of urea fertilizers or chemicals to treat urea are on the market today. Only a few are effective at protecting the fertilizer from quickly losing N.

Mineral N Cycling in an Integrated Crop-Grazing System

Objectives of this study are to diversify cropping systems dominated by small grains with other crops as well as reduce costs in finishing beef animals by grazing high quality crops rather than all grain.

Nitrogen Extenders and Additives for Field Crops

Nitrogen is lost from soil through the activity of soil bacterial transformation of ammonium to nitrate, and from nitrate, the N can be lost leaching or denitrifcation. There are chemistries available that inhibit the transformation of…

Nitrogen Fixing Bacteria for Corn: Testing Two Commercial Products

A study funded in part by the North Dakota Corn Utilization Council, was conducted to evaluate the ability of two products to supplement some or all of the N required to grow a corn crop in North Dakota.

North Dakota Clay Mineralogy Impacts Crop Potassium Nutrition and Tillage Systems

Chemistry of clays in North Dakota vary between locations. Clay chemistry affects tillage choice, resistance of soil to compaction and potassium crop nutrient availability. This publication provides insight into reasons for clay…

North Dakota Fertilizer Recommendation Tables and Equations

Most of the nutrient recommendations for North Dakota crops were revised this year. For these crops and for minor crops that do not have a specific nutrient circular, this publication summarizes 27 crops or crop categories.

Pinto Bean Response to Phosphorus Starter Fertilizer in East-central North Dakota

This is a production reference to highlight pinto bean fertilizer research.

Pinto bean response to starter and foliar fertilizer

A study to examine the performance of pinto bean with selected treatments of phosphorus (P), zinc (Zn), and sulfur (S) starter and post-applied fertilizer.

Site-specific Farming: Active Optical Sensor Algorithms for Corn Yield Prediction and a Corn Side-dress Nitrogen Rate Aid

Research from 2011 to 2013 has resulted in a data base that supports the use of active-optical sensors to direct side-dress N rate in corn. Previously, rates were determined using a grower's best guess.

Site-specific Farming: Active-Optical Ground-Based Sensor Algorithms as Tools for Determining Need in Spring Wheat

Up until now, there has been no scientific method to determine whether or not a late-season N application would be helpful to increase protein or not. The information in this publication will help growers/crop consultants make this…

Site-specific Farming: Active-Optical Ground-Based Sensor Algorithms as Tools for Determining Top-Dress N rate

Although some states have algorithms for directing top-dress wheat N rates, until now North Dakota did not have any. These algorithms will assist growers in determining whether or not in-season N rates are necessary and help them determine…

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Soil Fertility

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