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| Filter results9 paper(s) found. |
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1. Nitrogen Management for Winter Wheat in MissouriEight site years of data have been collected to evaluate nitrogen rate and timing for intensively managed winter wheat in Missouri. Variables have included rates up 160 lbs N per acre applied as all fall, all spring, or split in a fall and spring or fall plus two spring applications. Results have pointed to the split applications of rates at 80 to 120 lbs N per acre as providing greatest consistency and economic return to the grower. Maximum yield has generally been obtained with the 3 way split... |
2. Soybean Production Research: A National ApproachU.S. soybean growers are looking for alternative methods to increase soybean yields and recent increases in commodity prices have given producers more freedom to invest in additional crop inputs or products. Unfortunately, quality data from studies addressing multiple contemporary inputs is scarce. The objective of this work was to evaluate the effectiveness of combined soybean inputs on seed yield. These high input systems were tested in six states to evaluate their value across a broad geography.... |
3. Corn Yield Response to Sub-Surface Banded Starter Fertilizer in the U.S.Sub-surface fertilizer application at planting (i.e., starter fertilization) is a common practice in U.S. corn (Zea Mays L.) production to improve early-season nutrient uptake, nutrient use efficiency, and plant growth, especially under cool and moist spring soil conditions. However, yield increases from starter applications can vary across production systems and environments. Here, we use a meta-analysis approach to quantify and generalize corn yield responses to sub-surface starter... D. Quinn, C. Lee, H. Poffenbarger |
4. Winter Wheat Grain and Straw Impacts from Autumn Starter and Spring Nitrogen Fertilizer StrategiesThe overwintering success of winter wheat (Triticum aestivum L.) can be a determining yield factor in Michigan. Autumn-applied starter fertilizer may affect establishment, nutrient uptake, tiller production, and grain and straw yield. The objective of this study was to evaluate soft red winter wheat (SRWW) grain and straw yield in response to autumn applied starter fertilizer, spring nitrogen (N), and varietal stature. A two-year randomized complete block split-plot design with... K. Steinke, L. Thomas |
5. Comparison of Wheat and Barley to Rye As a Cover Crop for MaizeCover crops are used by farmers in Kentucky to prevent soil erosion and uptake residual nitrogen in between growing seasons of cash crops. Cereal rye has become a popular cover crop due to its sizeable biomass production and superior nitrate uptake ability. Wheat and barley have similar fibrous root systems and may have value as a cover crop. A field study was conducted at the University of Kentucky North Farm in Lexington, KY, in 2021 and 2022. The objectives of this study were to determine if... R. Nalley, C. Lee |
6. Comparison of Wheat and Barley to Rye as a Cover Crop for CornWinter cereal cover crops have become an essential management practice for sustainable corn production. Rye is the most popular winter cereal for cover crop, but wheat and barley may provide a comparable value due to their similar fibrous root systems. Winter cereals provide organic matter, scavenge residual nutrients, and protect the soil from erosion. Winter cereals can immobilize nutrients for the corn crop and can reduce corn stands in some situations, reducing corn yield. The primary objective... R. Nalley, C. Lee, H. Poffenbarger |
7. Effect of Barley and Winter Pea Cover Crops on Nitrogen Availability in No-Till CornCover crops are known to have positive effects on soil health and reduce erosion. However, popular cereal grains used as cover crops, such as rye (Secale cereale), wheat (Triticum aestivum), and barley (Hordeum vulgare) can negatively affect nitrogen availability for the subsequent corn crop. Legumes, such as winter peas (Pisum sativum) could reduce competition for nitrogen between the cereal cover crop and the summer corn crop. This study's objective is to determine if barley as a cover crop... E. Marsh, C. Lee |
8. Effect of Barley and Winter Pea Cover Crops on Nutrient Availability in No-Till CornCover crops are reported to have long-term soil health improvements, the first of which is reducing erosion. However, popular cereal cover crops, such as rye (Secale cereale), have the potential to cause a yield penalty in the following corn (Zea mays) crop. Legumes, such as Austrian winter pea (Pisum sativum), are thought to reduce this yield penalty in no-till systems. Additionally, sulfur deficiencies have been observed in some studies following cover crops. The main... E. Marsh, C. Lee |
9. Understanding Wheat Head Counts Effect on YieldWheat (Triticum aestivum) is grown in many parts of the world, with soft red winter wheat (SRWW) being the most popular type grown in Kentucky. Wheat is the fourth most economically important crop in Kentucky and is used in a variety of food products as well as in feed for livestock. Crop scouts reported wheat head counts above the current University of Kentucky threshold for head counts needed to maximize yield. Wheat in other states north reported higher head counts than those observed... A. Mutter, C. Lee |