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 40 for “"vegetable crops"”.
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Habitat manipulation for conservation biological control in organic Vegetable crops
O controle biológico é a principal estratégia utilizada na agricultura orgânica para prevenção dos danos causados por artrópodes praga. Para que o controle biológico possa ser favorecido, a manipulação de habitats nos agroecossistemas deve prover recursos e condições adequadas para a conservação e …
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The effects of greywater irrigation on vegetable crops and soil
… and crop biomass but not on quality of edible vegetable crops. Thus a field experiment was established at the Umtata Dam Research Station where combinations of cabbages and onions; spinaches and beetroots; and carrots and lettuce were planted in to coincide with four different planting seasons …
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The effect of a synthetic soil conditioner and sawdust on vegetable crops
… of a synthetic soil conditioner on the yield of vegetable crops. Data is in this thesis concerning experimental results of two years, 1953 and 1954. In addition, a report is given on a preliminary study which was conducted in 1952. In general, not enough research has been done on this project to …
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Effect of Cropping Systems on Production and Economic Returns of Ten Vegetable Crops
Experiments were conducted with vegetable crops which are commonly grown for profit on a 5- to 10-ha farm to determine: (1) the yield and performance of these crops; and (2) the differences in cost and net return between several cropping systems. Tomato (Lycopersicon esculentum Mill. cv. Jet Star), …
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BASIC AND APPLIED RESEARCH APPROACHES FOR OPTIMIZING THE USE OF ARTIFICIAL LIGHT IN VEGETABLE CROPS
… lighting, LED, and LED assisted with infrared on crops like tomato and spearmint in one section of this study. The traits such as early and late flowering, tomato fruit weight, lycopene, beta carotene, brix index, titratable acidity, phenolic index, anthocyanins, chlorophyll a and b, carotenoids, …
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New Methodologies to Generate, Conserve, and Predict, Renewable Energy Output for Season Extension of Warm and Cool Season Vegetable Crops
… were also examined as floating covers to protect crops from cold temperatures. To predict energy output, the USDA ARS Virtual Grower was compared against data from the tunneled treatments. Treatments were tested in fall 2020 and spring 2021 with data was collected for air, soil, and tube …
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URBAN WASTEWATER REUSE IN AGRICULTURE: RECENT PERSPECTIVES FROM CASE STUDIES IN SICILY
… wastewater (RW), used for irrigation of vegetable crops, on soil, crop quality and irrigation equipment. During 2013, effluents of a horizontal sub-surface flow constructed treatment wetland (TW) system, used for tertiary treatment of sanitary wastewater from a small rural municipality …
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Interference of onion growth by green foxtail (Setaria viridis(L.) Beauv.)
… use of herbicides for weed control in irrigated vegetable crops. In 1970 a 2-acre demonstration block at Outlook, Saskatchewan revealed that onions (Allium cepa L.) would perform well in this area under irrigated conditions
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Trickle Irrigation; A Study of Moisture Distribution in the Soil Profile
… The irrigation water requirement of vegetable crops for maximum yield and the effect of discharge rate on the distribution of moisture in heavy soils under a trickle source were subjects of this investigation.
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Impatiens Necrotic Spot Virus Resistance in Transgenic Impatiens walleriana and Lycopersicon esculentum
vegetable crops. Micro-Tom is a model tomato cultivar used for research due to its small size and short time to fruiting. This project evaluated I. walleriana and Micro-Tom transformed with Agrobacterium. The construct contained GFP (green fluorescent protein) and hygromycin antibiotic-resistant …
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Efficacy and selectivity of the herbicide rimsulfuron in potatoes [Solanum tuberosum], transplanted tomatoes [Lycopersicum esculentum], and transplanted peppers [Capsicum annum]
… grass and broadleaf weed control in Solanaceous vegetable crops. The efficacy and selectivity of rimsulfuron were determined in potatoes, transplanted tomatoes, and transplanted peppers in field studies in 1991, 1992, and 1993. Treatments included rimsulfuron and metribuzin alone and in …
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Mise en place de différentes stratégies visant à favoriser l’approche « push-pull » pour le contrôle des pucerons en cultures maraîchères dans l’est de la Chine
… farmers apply a lot of pesticides in their vegetable crops. This situation, due to the socio-economic context of the rural population of the country, affects the food security. This work aims to study alternatives to the intensive use of synthetic pesticides, namely by the establishment of …
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Water usage at different growth stages of snap beans grown under two fertilizer regimes
… fertility and irrigation trials on a number of vegetable crops. K. E. Hwang in 1970 conducted experiments in this department to study the amount of water used at different stages of growth by two crops, namely cabbage and potatoes. These experiments were designed to study the amount of water …
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Sequential cropping of vegetables using plastic mulch, trickle irrigation, and soil fumigation
Successive cropping of two vegetable crops grown on the same site in one season utilizing trickle irrigation, plastic mulch, and soil fumigation was performed in two separate experiments. In 1980, cabbage (Brassicae olericea L. var capitata cv. Market Prize) was followed by tomato (Lycopersicon …
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Perpetual Mobilization and Environmental Injustice: Race and the Contested Development of Industrial Agriculture in the Yazoo-Mississippi Delta.
… aerial herbicide application kills adjacent vegetable crops and a disarticulated food system hinders marketing possibilities—while producing health and income inequalities. In this thesis, I explore the historical roots of contemporary injustices, showing that the dominance of a particular …
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Analyzing the Impacts of an IPM Vegetable Technology Transfer in Bangladesh
… the effectiveness and impacts of USAID's IPM IL vegetable technology transfer subproject in Bangladesh. The effectiveness of the technology transfer is evaluated in four ways: IPM adoption rates and determinants of IPM adoption, measuring the impact of IPM adoption on vegetable yields, pest …
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Investigation of Yield and Quality of Grafted Heirloom and Hybrid Tomatoes
… esculentum Mill</i>) are one of the most popular vegetable crops grown for fresh market and processing in the U.S. Grafting involves the uniting of a shoot or bud scion with a rootstock to form a compound plant, mainly for managing soil-borne diseases and increasing crop yield. The objectives were …
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The Effects of Agricultural Waste-Based Compost Amendments in Organic Pest Management
… devastate a wide range of annual and perennial crops. Current management options for organic production are limited and sustainable management of pathogens, weeds, and arthropods is important for staying profitable and reducing the use of harmful chemicals. Organic soil amendments play an …
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A Comparison of Image Processing Techniques for Bird Detection
<p>Orchard fruits and vegetable crops are vulnerable to wild birds and animals. These wild birds and animals can cause critical damage to the produce. Traditional methods of scaring away birds such as scarecrows are not long-term solutions but short-term solutions. This is a huge problem especially …
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