Global ETD Search
Search theses and dissertations gathered from participating repositories worldwide. Every result links back to the library that holds it. No account is needed.
Results
Showing 1 to 20 of 81 for “"soybean yield"”.
-
Soybean Yield and Plant Response to Phosphorus Fertilization
<p>Phosphorus (P) is a key limiting nutrient for soybean production in South Dakota. Soil tests have been used as a baseline indicator for plant available P and fertilizer recommendations for over a century. Plant nutrient analysis may be used to complement a soil test as a way to validate …
-
Identification and Utilization of Diverse Germplasm for Soybean Yield Improvement
… with adapted cultivars were evaluated for yield and genetic diversity. Experimental lines were identified that were higher yielding than their adapted parents. The lines also maintained their diversity from the ancestors and non-parental cultivars even after selection for agronomic …
-
Xanthomonas campestris pv. glycines: Pathogenicity genes, races, and soybean yield
… the bacterium. A rapid bioassay technique using soybean cotyledons was developed to evaluate the large number of mutants for their pathogenicity. One nonpathogenic mutant, NP1, did not multiply in soybean cotyledons. One cosmid clone with a 31 kb insert, pIH1, that complemented mutant NP1 was …
-
Nitrogen and Boron Applications During Reproductive Stages for Soybean Yield Enhancement
The yield response of soybean [Glycine max (L.) Merr.] to reproductive stage applications of either nitrogen (N) or boron (B) has been inconsistent. This study evaluated soybean seed yield response to foliar applications of B and soil applications of N at two stages of plant development, at two row …
-
The effect of Septoria brown spot on soybean yield and phyllosphere microbiome
… by Septoria glycines is the most prevalent soybean foliar disease in Illinois and often co-occurs with other late-season diseases, such as Cercospora leaf blight and frogeye leaf spot. Foliar fungicide applications during the reproductive stage is a common method to control these diseases. …
-
A meta-analysis of how management practices affect soybean yield and quality
Soybean [Glycine max (L.) Merr.] is a major cultivated crop, providing protein and oil for human and animal feed. While soybean yields in the United States have increased over the years, grain oil concentrations have remained relatively constant while protein concentrations have decreased. The …
-
A phenology-guided deep learning framework for advanced soybean yield prediction in the Americas
Submission published under a 24 month embargo labeled 'U of I Access', the embargo will last until 2027-05-01
-
Effect of applied B, Cu, Mn and Zn on soybean yield and micronutrient concentration
The effect of applied B, Cu, Mn and Zn on soybean seed yield and tissue micronutrient concentration was studied under different field conditions. Manganese application increased soybean seed yield on the Dragston, Myatt and Slagle fine sandy loams, but not on Rains fine sandy loam. Seed yield was …
-
Supervised and self-supervised deep learning approaches for weed identification and soybean yield prediction
… innovative solution to weed detection and crop yield prediction. The study focuses on key weed species: Italian ryegrass in wheat, Palmer amaranth, and common ragweed in soybean, which are troublesome weeds in the United States. One of the most innovative components of this research is the debut …
-
Characterization of the Relationships between Soybean Yield, Trifoliolate Leaf Chloride Concentration, and Cultivar Chloride Inclusion/Exclusion Rating
<p>Chloride toxicity is recognized as yield limiting problem in soybean [Glycine max (L.) Merr.] production. Limited information is available to accurately diagnose and manage Cl toxicity. The only recommendation for Cl toxicity management is to plant an excluder cultivar, however the cultivar Cl …
-
Effects of Temperature, Precipitation, Solar Radiation, and Rooting Depth on Soybean Yield, Seed Protein, Seed Oil, and Leaf Composition
Made available in DSpace on 2014-12-14T14:37:20Z (GMT). No. of bitstreams: 1 7709228.pdf: 5260415 bytes, checksum: 1cab7dfe11f2da2ec57d8b92694a4d2e (MD5) Previous issue date: 1976
-
Characterization and agronomic evaluation of biochar amendments in a midwestern loam soil: effects on soybean yield, soil nutrient retention, and leachate quality
… and evaluates their short-term effects on soybean (Glycine max) yield, soil nutrient dynamics, leachate composition, and plant nutrient uptake. The study combines biochar characterization with a controlled pot experiment to assess how feedstock type, production method, and application rate …
-
Agronomic and Economic Comparison of Full-Season and Double-Cropped Small Grain and Soybean Systems in the Mid-Atlantic USA
… substitute, although much less of it is grown. Soybean is grown full-season and double-cropped after both small grains. Historically, wheat was the primary small grain in the soybean double-crop rotation because of its greater profitability. The barley-soybean cropping system is not a new …
-
The Advantages and Inheritance of Brown Stem Rot Resistance in Soybeans and The Implications to Breeding for Resistance (Phialophora Gregata, Disease Resistance)
Brown stem rot (BSR) is a fungal disease of soybean {Glycine max (L.) Merr.} caused by Phialophora gregata Allington and Chamberlain (W. Gams). Field and greenhouse tests were performed to study the effect of BSR resistance on soybean yield, to study the heritability and genetics of BSR resistance, …
-
Cover crops, tillage, and the suppression of soil borne diseases in soybean
… for decreasing the incidence and severity of soybean diseases, changing soil microbial community structures, and increasing soybean yield. Two tillage treatments (chisel plow and ridge till) were also evaluated to determine whether these treatments had any effect on the microbial populations. …
-
Irrigation and nitrogen management of soybean in highly productive soils
… more common and describes an approach in which soybean [Glycine max (L.) Merrill] producers try to increase soybean yields through various applications of in-season inputs or other alterations of typical production practices. Two areas of interest include water limitations of soybean yield under …
-
Studies on the Timing of Application, Soil Activity, and Factors Affecting Soil Activity of Several Selective Grass Herbicides (Sethoxydim, Fluazifop-Butyl, Haloxyfop-Methyl)
… grass herbicides were conducted. No reduction in soybean yield occurred as a result of up to 5 weeks of early grass competition. Delayed treatment of sethoxydim (10-15 cm stage) especially when planting early provided the best grass control by allowing for maximum foxtail germination. Results …
-
Full-Season and Double-Crop Soybean Response to Potassium Fertilizer
… for potassium (K) increases with increasing soybean yield. Little research has been conducted on soybean response to K on coastal plain and piedmont soils of Virginia, especially in double-crop systems. Nineteen full-season and 14 double-crop soybean experiments were conducted in 2013 and …
-
Restoration of Prime Farmland Disturbed by Mineral Sand Mining in the Upper Coastal Plain of Virginia
… with wheat ( Triticum vulgare) and soybeans (Glycine max) in 1995/1996. The control and Topsoil treatment on Pit 1 produced the highest wheat yield, but soybean yield was highest on the Control and the Topsoil and Compost treatments on Pit 3. Wheat yield was positively related to …
Page 1 of 5