Agronomy and Horticulture Department

 

Authors

Date of this Version

1992

Document Type

Article

Comments

Published in Soil Science Research Report (1992) 121 pages.

Abstract

Weather Data - 1992 .......... 1

Influence of Anhydrous Ammonia Band Spacing on Irrigated Corn Grain Yield and Band Persistence .......... 9

Variable Rate Nitrogen Fertilization with Furrow Irrigation - Milton Ruhter Farm .......... 17

Burlington Northern Nitrogen Management Study .......... 25

The Effects of a Urease Inhibitor on Volatile Ammonia Loss and Urea Hydrolysis on Irrigated, Ridge Till Com .......... 37

Nitrogen Fertilization of Smooth Brome .......... 43

Evaluation of Soil Testing for Nitrate-Nitrogen .......... 47

Horizontal Sampling to Assess Agrichemical Movement .......... 55

Water Movement in Soils and Porous Media .......... 57

A Natural Gradient Transport Study of Selected Herbicides .......... 59

Tillage, Rotation and N Rate Effects on Dryland Corn Production and Nitrogen Uptake in Northeastern Nebraska .......... 63

Quantifying Nitrate Leaching Under Continuous Com Versus a Corn-Soybean Rotation .......... 73

Cover Crop Dry Matter Production for Several Planting and Harvest Dates .......... 79

Nutrient and Mass Loss of Beef Feedlot Manure During Composting .......... 83

Effect of Residual Phosphorus Bands on Crop Yield and Their Persistence in the Soil .......... 87

Comparison of Erosion Rates Estimated Using the Cesium-137 Methods and USLE .......... 95

Erosion Patterns Using Geostatistical Analysis of 137 Cesium .......... 101

Long-Term Applications of Manure and Fertilizer in Irrigated Corn .......... 109

Evaluation of Tillage, Rotation, Nitrogen and Cover crop Effects on Nitrogen cycling .......... 115

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