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.
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Showing 1 to 20 of 51 for “"Planting Date"”.
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Yield response of soybean to planting date and row spacing in Illinois
… returns through use of efficient soybean planting practices is important to producers. Recent studies of planting date and row spacing have been limited in geographic scope, and few of these have included both factors together. Studies combining these factors, and seeding rate, were …
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Effect of planting date on measured growth intervals for a set of genetically diverse maize hybrids
Delayed planting is known to affect the thermal and calendar day requirements of corn hybrids. There are conflicting reports in the literature as to whether the thermal intervals to certain growth stages are increased or decreased by delayed planting. A study of 12 maize hybrids was conducted in …
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Evaluation of Soybean Maturity Group and Planting Date in a Soybean-Rice Rotation on Overall Crop Productivity
… to determine how soybean maturity group (MG) and planting date effect overall soybean productivity and its influence on the following rice crop. Various soybean planting dates (optimum and late) and MGs (3.5, 4.7, 5.4, and 5.6) were grown and followed in rotation with a rice crop. Six rates of …
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The influence of planting date, variety, seeding rate, and harvest treatment on forage and grain yields of winter wheat
Digitized by Kansas Correctional Industries
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The influence of planting date, variety, seeding rate, and harvest treatment on forage and grain yields of winter wheat
Digitized by Kansas Correctional Industries
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The critical seed-filling period duration is dependent on soybean planting date and cultivar maturity selection: implications for crop management
Historically, planting soybean in early when compared to late May in the midwestern United States was not found to contribute to increasing soybean [Glycine max (L.) Merr.] yields. However, decades of genetic improvement concurrent with crop management research has resulted in a clear consensus …
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Interactive effects of n fertilization rate, cultivars and planting date under climate change on maize (zea mays l.) yield using crop simulation and statistical downscaling of climate models
… sufficient to meeting novel agro-technologies. Planting date (PD), low soil fertility and climate change influences maize (Zea mays L.) growth and yield. Local-scale impacts of future climate change (CC) and variability (CV) on PD, N fertilizer rate (N), cultivar, maize growth, and yield is not …
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Individual Experiments to Evaluate the Effects of Plant Population and Planting Date, Cultivar and Plant Growth Regulator Application, and Herbicide and Plant Growth Regulator Application on Cotton (Gossypium hirsutum L.) Growth and Development, Yield, and Fiber Quality
… the interaction of plant population and planting date, and cultivar or herbicide and plant growth regulator application on these parameters were conducted in Virginia during 2005 and 2006 and in North Carolina, South Carolina, and Louisiana during specific years. Experiment I: Plant …
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Quantifying the effect of fall armyworms on maize yields in a resource constrained economy: A case study in Zambia
… from crop science, I explore the effect of planting date and the use of hybrids on FAW damage. In terms of planting date, I find planting date and the use of hybrids did not significantly influence the damage caused by FAW infestations.Quantifying of the effect of FAW on maize yield may help …
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Quantifying genotypic and environmental factors affecting potato canopy growth
… in further canopy quantification. The effects of planting date, nitrogen rate, cultivar and stem density were examined in two multi-year experiments. Planting date had a strong effect on early growth, though subsequent growth was less sensitive to temperature. Leaf production and canopy duration …
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Agronomic and Economic Comparison of Full-Season and Double-Cropped Small Grain and Soybean Systems in the Mid-Atlantic USA
… concept in the region, but the literature is outdated. New agronomic and economic data that directly compares full-season soybean, barley-soybean, and wheat-soybean systems using modern cultivars and management practices is needed. The objectives of this research were to: i) determine soybean …
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Influence of Several Herbicides on Visual Injury, Leaf Area Index, and Yield of Glyphosate-Tolerant Soybean <I>(Glycine max)</I>
… the relationship between soybean maturity, planting date, and herbicide treatment on soybean injury, leaf area index (LAI), and yield. Three glyphosate-tolerant soybean cultivars representing maturity groups III, IV and V were planted at dates representing the full-season and double-crop …
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Determination of Optimum Fall and Spring Nitrogen Fertilizer Rate for Maximizing Grain Yield of Soft Red Winter Wheat Sown at Variable Planting Dates
<p>An optimum planting date is important for winter wheat nitrogen (N) management as it dramatically changes the growing environment including temperature and moisture, ultimately affecting fertilizer efficiency and grain yield (GY). In Arkansas, high precipitation in the fall often forces farmers …
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Assessing the Potential Use of Teff as an Alternative Grain Crop in Virginia
… kg PLS ha??. Nitrogen fertilizer was applied at planting in the form of urea at a rate of 56 kg ha??. The experimental design was a randomized complete block with a two-way factorial treatment structure (variety and planting date) and four replications. Grain yield and nutritive value, straw …
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Discerning Agronomic Best Management Practices for the Bioenergy Crop Camelina: A Focus on Water Requirements, Sowing Date and Method, and Nitrogen Application Rate in the Semiarid Environment of Northern Nevada
… crop camelina such as water requirements, planting date and methods, and nitrogen application rate in the semiarid environment of Northern Nevada. A two-year study was performed at the University of Nevada, Reno Main Station Field Laboratory, and Reno, Nevada during the spring growing …
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The role of plant hormones, carbohydrates and indolebutyric acid in root and shoot development of two transplanted woody species
… to seedling red oaks up to two weeks prior to planting. Bare root Quercus rubra seedlings were sprayed with 0, 3000, 6000 and 9000 ppm of IBA at 0, 3, 7 and 14 days prior to planting in containers or in the field. After the second year of field growth, plants treated with 9000 ppm of IBA on the …
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Root growth potential and outplanting performance of loblolly pine seedlings raised at two nurseries
… nurseries, and cold stored until subsequent outplanting; subsamples of outplanted seedlings were used for RGP determinations. Root growth potential varied significantly by family, nursery, and lift date, and first order interactions were significant. Generally, the RGP of Summerville raised …
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Mapping agroecosystem management practices from space and quantifying their impacts on crop productivity
… practices, including cover cropping and planting dates, is very limited. Recent advances in satellite remote sensing provide a promising solution for detecting field-level, long-term, and large-scale agricultural management practices. Thus, this dissertation aimed to map field-level cover …
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Cultivation and Nutritional Constituents of Virginia Grown Edamame
… determine how yield components change with planting date and cultivar, and to measure total protein, lipids, antioxidant activity and isoflavone concentrations at harvest.. The five cultivars (BeSweet 292, BeSweet 2015, BeSweet 2001, Midori Giant and Sunrise) used in the cultivar evaluation …
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