نتایج جستجو برای: problems of greenhouse growers

تعداد نتایج: 21209322  

2002

Check out – Auburn University on the Web at http://www.poultryhouse.com Infectious disease is one of a number of factors that can affect performance in broiler flocks. Modern industry practices such as stringent hatchery sanitation programs, widespread vaccinations, use of feed additives and bio-security precautions have evolved to provide in most cases an effective shield against serious losse...

2000
M. Navarrete B. Jeannequin

In greenhouse tomato crops, several manual operations are performed each week to keep the plants in optimal growth conditions. But growers are trying to reduce labour costs by spacing out the manual operations. An experimental study was conducted on one particular operation, axillary bud deshooting. The aim is to determine the effect of the deshooting frequency on vegetative growth and fruit yi...

2005
Joyce G. Latimer

Production of herbaceous perennials has been one of the most rapidly growing areas of floriculture for the last 8 to 10 years. However, greenhouse and nursery production of herbaceous perennials requires a significant effort to control the growth of some of these very vigorous plants. Until very recently the primary methods of control were scheduling and pruning. If a grower missed the target d...

A. Sharifzadeh A.A. Abbasi Rostami

This research was done aimed to investigation the effective factors on production skills of tobacco growers in Mazandaran province. This is an applied study based on descriptive-correlation method. Statistical population of this research consisted of 1500 tobacco growers  of Mazandaran province, and 306 people were selected based on Morgan table. Content validity of the questionnaire was determ...

2012
Harvey J. M. Hou

The American cranberry (Vaccinium macrocarpon Ait.) contains rich antioxidants and has significant health benefits in fighting a variety of human diseases. In the past ten years, cranberry growers have reported yellow vine syndrome, which is associated with reduced photosynthetic performance, in the cranberry bogs. It has been found that the yellow vine syndrome of cranberry is associated with ...

ژورنال: علوم آب و خاک 2007
غلامرضا سلطانی, , محمود صبوحی, , منصور زیبایی, ,

The objective of this study was to evaluate the strategies for groundwater resources management, including competition groundwater pumping, optimal control in groundwater pumping, groundwater use and tax policy, water users' participation in groundwater pumping control, and cooperation among government and water user associations in Narimany plain located in Khorasan Province. Irrigation wate...

2011
Eike Luedeling Evan H. Girvetz Mikhail A. Semenov Patrick H. Brown

BACKGROUND Temperate fruit and nut trees require adequate winter chill to produce economically viable yields. Global warming has the potential to reduce available winter chill and greatly impact crop yields. METHODOLOGY/PRINCIPAL FINDINGS We estimated winter chill for two past (1975 and 2000) and 18 future scenarios (mid and end 21st century; 3 Global Climate Models [GCMs]; 3 greenhouse gas e...

Journal: :Occupational and environmental medicine 2003
W M A J Miesen S van der Heide H A M Kerstjens A E J Dubois J G R de Monchy

BACKGROUND About 25% of greenhouse flower and/or ornamental plant growers sensitised to workplace flowers or moulds have occupational asthma, a disease that is suffered by 8% of the growers who cultivate these crops. AIM To document a case of occupational asthma due to IgE mediated allergy to the flower Molucella laevis. METHODS and RESULTS There was a history of work related seasonal ast...

Journal: :International Journal of Current Microbiology and Applied Sciences 2018

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