Agronomy and Horticulture Department
Date of this Version
1987
Document Type
Article
Abstract
Tillage Experiments
Economic and resource analysis of deep tillage to residue soil compaction for soybean production .......... 1
Increasing nitrogen use efficiency by dry land sorghum under conventional disk and no-tillage systems .......... 6
The effect of tillage, residue, precipitation intervals and soil properties on soil crust characteristics .......... 11
Tillage influence on soybean production and soil properties .......... 15
Tillage, rotation and N rate effects on dry land corn production and nitrogen uptake in northeastern Nebraska .......... 18
Soybean Experiments
Effect of potassium salts on chlorosis and yield of soybeans .......... 23
The effect of Fe-EDDHA on soil and plant measurements in control of soybean chlorosis .......... 28
Variety evaluation on high pH soil-1987 .......... 31
Fertilizer Management Experiments
Effect of broadcast phosphorus on P response of ridge planted corn .......... 52
Effect of method and rate of P application on wheat yield and P uptake .......... 54
Effect of Nitrogen rate, application timing and mefluidide application on Bromegrass yield .......... 56
Effect of N source and rate on wheat yield .......... 59
Effect of phosphorus application rate and method on soybean yield .......... 60
Effect of phosphorus application method and rate on irrigated corn yields and soil phosphorus levels .......... 62
Effect of planting date, seeding rate and phosphorus application rate on the yield and yield components of winter wheat in southeast Nebraska .......... 66
Effect of time of seeding, method and rate of P application on winter wheat yield, P uptake, and yield components .......... 69
Evaluation of the influence of starter fertilizer on corn, grain sorghum, and soybeans, 1987 .......... 73
Long term effects of N-Serve on improving nitrogen use efficiency for furrow irrigated corn .......... 77
Nitrogen fertilization of Smooth Brome .......... 79
Phosphorus placement for grain sorghum .......... 81
Progress report on the B-K-R demonstration farm .......... 89
Other Experiments
Dynamics of water in rigid and swelling soils .......... 95
High yield corn-soy bean-wheat rotation study .......... 96
Influence of landscape position on crop production and profitability .......... 102
Microbial activity and available soil N as regulated by soil water filled pore space .......... 105
Precipitation probability modelling .......... 109
Comments
Published in Soil Science Research Report (1987) 115 pages.