Three workers died from carbon dioxide poisoning in a partly underground silo which had been almost completely emptied of green forage. Two died at once, the third after five days without regaining consciousness. Several similar cases are reported in the literature. Wrede (1936) described a case of carbon dioxide poisoning which occurred in a cellar through the escape of gas from a beer barrel....

The crop nutrition has a well-defined effect on yield and quality of forage crops. Among various essential macro nutrients, the nitrogen has a key function in improving forage yield and crude protein contents but demand of crop for nitrogen varies with the cultivars. The present study was conducted to investigate the effect of different nitrogen levels (0, 25, 50 kg ha) on forage yield and qual...

With an increasing number of outbreaks and illnesses associated with produce contaminated before harvest, understanding the potential and mechanisms of produce contamination by enteric pathogens can aid in the development of preventative and post-harvest processing measures to reduce microbial populations. Enteric pathogens localized at subsurface sites on leafy green plant tissue prevent their...

Hydroponics is perhaps the most intensive method of crop production in today’s agricultural industry. It uses advanced technology, is highly productive, and is often capital-intensive. Since regulating the aerial and root environment is a major concern in such agricultural systems, production takes place inside enclosures that give control of air and root temperature, light, water, plant nutrit...

Commercial hydroponics is a modern technology involving plant growth on inert media in place of the natural soil, in order to uncouple the performance of the crop from problems associated with the ground, such as soil-borne diseases, nonarable soil, poor physical properties, etc. Various non-toxic porous materials are used as plant growth substrates, including rockwool, perlite, pumice, expande...

AIMS To measure the microbial removal capacity of a small-scale hydroponics wastewater treatment plant. METHODS AND RESULTS Paired samples were taken from untreated, partly-treated and treated wastewater and analysed for faecal microbial indicators, i.e. coliforms, Escherichia coli, enterococci, Clostridium perfringens spores and somatic coliphages, by culture based methods. Escherichia coli ...

The pH range of 7.0 to 7.2 is recommended ensure reasonable nitrification rates in aquaponics; however, this conducive neither nitrification, a critical process that occurs at 8.0, nor plant growth. To determine the effects an aquaponic system, Swiss chard (Beta vulgaris L.), kale (Brassica oleracea mustard green juncea cilantro (Coriandrum sativum lettuce (Lactuca sativa and arugula (Eruca ves...

since the last decades, hydroponic fodder production systems have been experienced in some parts of the world. during the germination process, the growth of embryo results in the rupture of the seed coat and emergence of a young plant which it reaches to about 20cm height in a week. apparently, the concept of putting one kilogram of seeds into a hydroponic system to obtaine several kilograms of...

For a long time now, people have known the devastating effects of soil agriculture. This can include deforestation due to excessive agriculture which increases carbon emissions causing global warming. Previous research emphasized urgency developing green sustainable solutions grow food such as hydroponics and aeroponics. Tron Sherman, Mansfield, MO, introduced idea using recyclable substrate (i...