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 558 for “"weed"”.
-
Weed seed destructor: A harvest weed seed control method to manage waterhemp in soybean
… J.D. Sauer) is the most common and troublesome weed in soybean (Glycine max [L.] Merr.) based cropping systems of the Midwestern United States (U.S.). Evolution of multiple herbicide resistance in waterhemp is an increasing concern for soybean producers in Iowa and across the Midwestern states …
-
Soybean Response and Weed Control With Flumioxazin, and Sorption, Degradation, and Weed Control With Isoxaflutole
… to compare velvetleaf density, weed control, corn injury, and corn yield. Herbicide applications were made at three different timings: early preplant, preplant incorporated, and preemergence. The environmental fate of isoxaflutole was characterized in sorption and degradation …
-
Harvest Weed Seed Control: An Integrated Weed Management Strategy for Organic and Conventional Production Systems
Harvest weed seed controls (HWSC) destroy weed seeds that are retained by the plant at crop harvest, which would typically be spread by the harvester along with other field residues. HWSC exploits coincidental maturity between crops and weeds, so an experiment was designed to collect weed seeds as …
-
Impact of arbuscular mycorrhizal fungi on crop and weed growth: potential implications for integrated weed managment
With the growing problem of herbicide-resistant weeds, efficient and environmentally friendly non-chemical weed control approaches are needed to develop multi-tactic integrated weed management (IWM) programs. Using soil microbes for weed suppression has been considered as one of the non-chemical …
-
Chemical weed control in transplanted tomatoes
Weed control in transplanted tomatoes with diphenamid, trifluralin, and paraquat was evaluated under field conditions on a predominantly Grosclose silt loan soil on the Virginia Polytechnic Institute Horticulture farm near Blacksburg, Virginia. The herbicides were used singularly and in certain …
-
Optimizing Weed Management via Microwave Irradiation
One potential alternative to chemical weed control is the use of microwave radiation, a particular form of indirect thermal weeding. Absorption of microwave radiation causes water molecules within the tissue to oscillate, thereby converting electromagnetic energy into heat. This technique is rapid, …
-
Weed management in early-planted Illinois soybean
Submission original under an indefinite embargo labeled 'Open Access'. The submission was exported from vireo on 2023-12-04 without embargo terms
-
Soil solarization weed control in specialty crops
… for the control of crop diseases, nematodes and weeds. Target soils are tilled, irrigated to field capacity, covered, and sealed with transparent polyethylene (PE) plastic mulch during the hottest part of the year for a period of 4-6 weeks. Applied water in soil micropores is heated by high …
-
Siam weed based hydrogel hybrid for tissue engineering
… are yet to be defined. In this research, Siam Weed therapeutic properties promote healing process and its mechanical properties were enhanced by gelatin and electrospinning technique to produce Siam weed-gelatin electrospun scaffold as a successful 3D skin tissue engineering grafts. The effects …
-
Viability of weed seeds in manure and silage
… and there burned or left, never to be utilized, weed seeds in manure are of no concern. However, the majority of the farmers do spread the barnyard manures, either fresh or rotted. This is particularly true in the more densely populated regions where manure is appreciated for its fertilizing …
-
Decision Support Software for Palmer Amaranth Weed Control
… been identified as one of the most troublesome weeds, specifically for corn (Zea mays L.), cotton (Gossypium hirsutum L.), and soybean [Glycine max (L.) Merr.] producers in the southern United States. The use of herbicide technology remains the most widely used method of weed control, despite …
-
Weed resistance risk management in glyphosate-resistant cotton
… systems will have an effect on conventional weed management practices, the weed species present and the risk of glyphosate resistance evolving in weed species. Therefore, it is important that the effects of these management practices, particularly a potential reduction in Integrated Weed …
-
Optimizing Foramsulfuron for Weed Control and Corn Tolerance
… control of grass and some broadleaf weed species in corn. Field studies were conducted to evaluate weed control and corn tolerance from postemergence applications of foramsulfuron in sequential and total postemergence (POST) herbicide programs. Foramsulfuron provided good control of …
-
Weed control efficacy and biodegradation characteristics of imazethapyr
… acid) was evaluated in the field for weed control in soybean (Glycine max) during 1985 and 1986. Imazethapyr at 0.05, 0.07, 0.10, and 0.14 kg ai/ha was applied preplant incorporated (PPI), preemergence (PRE), or postemergence (POST). Imazethapyr controlled 90% or more smooth pigweed …
-
A support vector machine embedded weed identification system
… and the emergence of the herbicide-resistant weed species. A potential solution to reduce the use of herbicides while maintaining adequate weed control lies in the combined use of chemical and mechanical weeding, in which weeds are controlled adaptively according to their reaction to …
-
Multi-agent planning for coordinated robotic weed killing
The student, Wyatt McAllister, submitted this Dissertation for approval on 2020-05-08 at 13:51.
-
Multi-agent planning for coordinated robotic weed killing
… presents a strategy for coordinated multi-agent weeding under conditions of partial environmental information. Our goal is to demonstrate the feasibility of coordination strategies for improving the weeding performance of autonomous agricultural robots. We show that, given a sufficient number of …
-
Nitrogen Management and Weed Suppression in Organic Transition
… (Vigna sinensis Endl.) to supply N and suppress weeds and, 3) to compare the effect on N availability and broccoli yield potential of incorporating cover crops with conventional tillage (CT) or mulching cover crops with no-tillage (NT) practices. Broccoli was grown during the third year of …
Page 1 of 28