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1. Effect of Foliar Zinc Application on Durum and Spring Wheat Grain Yield and QualityZinc (Zn) deficiency represents a common micronutrient deficiency in human populations, especially in regions of the world where staple food crops are the main source of daily calorie intake. Micronutrients like Zn also plays an important role in growth and development of plant thereby affecting crop yield and quality. A two-year field trial was conducted at Sidney, Montana, to investigate the effect of foliar application of Zn on yield and grain quality of spring wheat. Zinc treatment included... F. Etemadi, R. Keshavarz Afshar, H. He, S. Zhou, Z. Li, C. Chen |
2. Optimizing Irrigation and Fertilizer Management in Cotton to Increase Nitrogen Use EfficiencyNitrogen (N) fertilizer is an important nutrient in cotton production, and if the optimal amount is not applied yield penalty may occur (Hutmacher et al. 2004). A more efficient application of N fertilizer based on plant N requirements, soil texture, and N availability can increase cotton yield and N-use efficiency (NUE). The main objective of this research was to determine the relationship between cotton lint yield and normalized difference vegetation index (NDVI) across multiple irrigation levels,... A. Bumguardner, T. Wheeler, K. Lewis |
3. The Effects of Manure Applications on Cotton Yield and Soil Greenhouse Gas Emissions in the Texas High PlainsThe cost of inorganic fertilizer is continually rising, which has caused an increased interest in alternative solutions. Along with fertilizer prices increasing, carbon emissions are following the same trend. There is an upcoming demand for organic fertilizer and carbon research. The purpose of this study was to assess the effects of various manure applications on crop growth and greenhouse gas emissions in three different cropping systems in the Texas High Plains. The no-tillage cropping systems... T. Roberts, K. Lewis |
4. Evaluation of Nitrogen Fertilizer and Rhizobium Inoculation to Improve Grain Yield and Quality of Soybean and Dry Bean in Eastern MontanaInterest in production of irrigated soybean and dry bean in eastern Montana’s Lower Yellowstone River Valley increased substantially following the closure of a sugar beet processing facility in Sidney, MT resulting in the need for a replacement crop(s) on 30,000 to 40,000 acres annually. Yields of soybean and dry bean in this region varied significantly from 20 to 80 bu ac-1 in recent growing seasons, indicating a need for improved management practices. However, research-based... B. Franck, C. Kuester, K. Herhalo, C. Chen |
5. Cover Crop Function and Management Optimization for Semiarid West Texas Cropping SystemsWater-use is a primary concern preventing integration of cover crops in dry climates. Recent research has demonstrated that adequate cover crop residue (with optimal termination timing) is more likely to improve soil water dynamics for the subsequent crop. Regarding cover crop function in West Texas, wheat stubbles as a fallow may offer a cheap and effective solution to prevent wind erosion and facilitate water storage in soil profile. Optimum management practices are likely different though... T. Hussain, R. Noland, R. Matschek, . Delaune, E. Kimura , J. Muir |
6. Carbon & Nitrogen Transformation in Soil After Biosolids or Inorganic Fertilizer ApplicationBiosolids are nutrient rich organic residues which could be a potential alternative to conventional fertilizers. However, their C and N mineralization rates vary depending on treatment processes and soil properties. A laboratory incubation was carried out to evaluate C and N dynamics in contrasting soils by quantifying gaseous losses and assessing N transformations between organic and inorganic pools. Soils collected from Texas (sandy clay loam, pH: 8.4) and Florida (sandy loam, pH: 7.6) were... S. Bhatta, L. Slaughter, M. Siebecker, J. Adjei, K. Lewis, O. Gecgel, C. Alvarez-pugliese, K. Millerick, B. Rao, O. Mbuya, G.G. Botte |