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 9 of 9 for “"yield monitor"”.
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Development of a corn stover yield monitor
<p>This research developed a sensor to measure the mass flow of corn stover through a combine and determine what harvest parameters affected the response of the sensor. A sensor was developed by installing a curved plate behind the rotor discharge beater of the combine to intersect the flow path of …
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Generalizing yield prediction approaches and evaluating the common factors influencing the models
Accurate crop yield prediction is one of the key areas in precision agriculture and it has been explored since the 1970s. This study integrates insights from three chapters, including a literature review and two experimental studies. These are used to evaluate how spatial resolution, the proximity …
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Improving Nitrogen Management in Corn- Wheat-Soybean Rotations Using Site Specific Management in Eastern Virginia
… due to the high variability of within-field yield-limiting factors such as soil physical properties and fertility, the adoption of SSM is hindered by high gridsampling cost. Many Virginia corn-wheat-soybean farms have practiced generating yield maps using yield monitors for several years even …
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Mechanisms for accumulation and migration of technetium-99 in saltmarsh sediments
… in bulk samples uses <sup>99m</sup>Tc as a yield monitor. Samples are ignited stepwise to 550°C and the <sup>99</sup>Tc is extracted using 8M nitric acid. Many contaminants are precipitated with Fe(OH)<sub>3</sub> and the Tc in the supernant is pre-concentrated and further purified using …
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Machine system energy requirements and yield sensing for biomass harvesting
… to the energy savings achieved by using them. A yield sensing system was developed for use as a mechanism to determine the amount of energy consumed by the harvester per unit weight of biomass. The “look-ahead” yield sensing system detected crop yield just prior to the crop being cut by the …
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Effects of Corn (Zea mays L.) Stover Removal and Leaching on Soil Test and Whole Plant K Levels in Corn and K Fertilization/High-Input Treatments on Soybean Using Site-Specific Management to Increase Soybean (Glycine max) Production in South Dakota
… for optimal plant growth in addition to grain yield. An experiment was conducted in Aurora, SD, USA, to observe the effects of corn stover removal on water soluble and exchangeable soil test K+ (STK) levels and corn grain yields across a five-year period. Abundant K+ reserves were recorded …
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Forage Yield Variability on New York Dairy Farms
… more homegrown forage. As a consequence higher yields will reduce feed imports and enhance nutrient use efficiency. To improve forage production, limitations to production need to be identified. While yield records can provide integral information, whole farm evaluations have shown that accurate …
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Sensor development for estimation of biomass yield applied to Miscanthus Giganteus
Precision Agriculture technologies such as yield monitoring have been available for traditional field crops for decades. However, there are currently none available for energy crops such as Miscanthus Giganteus (MxG), switch grass, and sugar cane. The availability of yield monitors would allow …