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United States Department of Agriculture (USDA) 2013

OPTIMIZING VEGETABLE PRODUCTION UNDER HOOPHOUSES IN HIGH DESERT ENVIRONMENTS

Etats Unis

United States Department of Agriculture (USDA) Research, Education & Economics Information System (REEIS)

Titre : OPTIMIZING VEGETABLE PRODUCTION UNDER HOOPHOUSES IN HIGH DESERT ENVIRONMENTS

Identification : NEV05257

Pays : Etats Unis

Durée : Nov 25, 2013 à Jun 30, 2018

Mots clés : vegetable production ; hoop house ; high desert environment ; water use efficiency ; plant stress responses ; nutritional content

Partenaire : UNIVERSITY OF NEVADA RENO,NV 89557

Objectifs
Our goals for sustainable agriculture in high deserts include : A) Over the long-term : (1) Create more sustainable farming operations (economically and environmentally). (2) Increase income stability and profitability of desert farming and thereby improve the economic condition of rural areas. (3) Decrease vulnerability of Nevada tourist markets to importing most of their food products. B) Over the intermediate term : (1) Diversify farming systems by adding alternate crops into rotation systems. (2) Increase the production and consumption of locally-grown healthy products. C) Over the short-term : (1) Create knowledge for production of locally-grown, high-quality vegetables in high desert environments. (2) Educate producers from desert areas on how to profitably grow high valued products. Specific objectives include : 1) Construct two 16' X 30' hoophouses at NAES MSFL 2) Prepare additional 16' x 30' plots outside of and adjacent to the hoophouses at MSFL and VRFL. 3) Instrument hoophouses and accompanying field plots with a drip irrigation system, a totalizing flow meter, temperature probes, soil water TDR probes, and solar radiation recorders. This instrumentation will allow scientists to quantify water use, environmental conditions, and growing conditions within each hoophouse and accompanying field plot that can then be used to explore relationships between the physical environment and each of the following : water use, crop production, crop nutritional content, and insect / disease outbreaks. 4) Systematically evaluate production potential and determine production efficiencies of vegetables for cool and warm season production cycles. a) Determine differences in water use efficiencies for field and hoophouse grown vegetables with two different shade cloth materials. b) Determine vegetable yields by production season in hoophouse and field production systems. c) Evaluate nutrition quality (levels of selective bioactive compounds), taste, and appearance profiles of vegetables produced under hoophouses and field conditions. d) Use measured environmental conditions, water use, production yields, and nutritional quality data to examine their inter-relationships, which can then be used to develop production guidelines for producers in different high desert climates. e) Examine the potential for hoophouse season extension by planting vegetables early and late during each production cycle. 5) Experimentally investigate plant culture techniques to improve taste and nutrition. a) Determine if controlled mild water stress under hoophouse growth conditions improves taste, nutritional content, and water use efficiency of vegetables without reducing overall production and economic profitability. b) Determine if controlled mild mechanical stress (thigmomorphogenesis) under hoophouse growth conditions improves taste and nutritional content of vegetables without reducing water use efficiency, overall production, and economic profitability. c) Determine if supplemental UV light stress under hoophouse growth conditions improves taste and nutritional content of vegetables without reducing water use efficiency, overall production, and economic profitability. 6) Develop and deliver educational programs with a target audience of agricultural producers and professionals. 7) Prepare and publish appropriate scientific and Extension publications

Présentation : USDA

Page publiée le 9 octobre 2015, mise à jour le 22 novembre 2017