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Xiaofeng Liang, Hong Wang, Yudan Zhang, Rui Yang, Dongdong Zhang, Wanlai Zhou, Zhiyong Qi and Wei Lin
Peat-based substrates have been widely used in greenhouse vegetable production (GVP). However, peat is a non-renewable resource, and there is a problem with N2O emissions when it is used in greenhouse vegetable production due to the application of large ...
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Pedro Cisterna-Osorio, Miguel Moraga-Chaura, Raydel Manrique-Suárez and Mabel Vega-Coloma
This research studies the biodegradation of sunflower-type vegetative oil in two proposed activated sludge systems, the first one to biologically treat an influent containing only vegetative oil and the second one to treat a mixture of vegetable oil plus...
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Marta M. Moreno, Sara González-Mora, Jaime Villena and Carmen Moreno
Organic hydromulches (liquid spray-on mulches) have been used traditionally in land rehabilitation, mainly to mitigate post-fire runoff and erosion. However, in recent years, a new application of these materials as an eco-friendly alternative to the wide...
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Qiu Tu, Lina Zhang, Linzhang Li, Chenmian Deng, Bingjun Wang, Binquan Gu and Zhengwu Dai
Heat pumps with water as heat exchange medium applied in greenhouse heating have not been used for vegetable seedling cultivation. In this work, a multi-connected direct expansion capillary radiation heat pump (MDCRHP) was designed for vegetable seedling...
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Enzo Montoneri, Andrea Baglieri and Giancarlo Fascella
Soluble bio-based substances (SBS) may be isolated from the anaerobic digestate of the organic humid fraction of urban waste; from the whole vegetable compost made from gardening residues and from the compost obtained after aerobic digestion of a mixture...
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Eduardo Castillo-González, Lorena De Medina-Salas, Mario Rafael Giraldi-Díaz and Cipriano Sánchez-Noguez
As vermicomposting has become a viable alternative for the valorization of organic waste; the objectives of this research were to (1) assess the feasibility of said process for corn cob waste (corn cobs and corn husks) and (2) evaluate the operation cond...
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Stuart Alan Walters and Karen Stoelzle Midden
The practice of producing vegetables on green roofs has been gaining momentum in recent years as a method to facilitate agricultural sustainability in urban areas. Rooftop gardens are becoming an important part of the recent rejuvenation of urban agricul...
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Alejandro Velásquez, Rodrigo Arias
Pág. 503 - 511
The in vitro crude protein (CP) digestibility (Divcp), true protein digestibility (Dtp) and degradation rate (kdcp) were measured in different protein extracts of Saccharomyces cerevisiae (Sc) yeast. These extracts were generated through a biotechnologic...
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Alejandro Velásquez, Rodrigo Arias, Marcelo Toneatti
Pág. 425 - 434
Velásquez, R. Arias, and M. Toneatti. 2012. Effect of the type of substrate on the chemical composition and productivity of a protein concentrate of yeast origin. Cien. Inv. Agr. 39(3): 425-434. Extracts of Saccharomyces cerevisiae (Sc) yeast were gen...
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Christel Oberpaur, Víctor Puebla, Flavia Vaccarezza, María E. Arévalo
Pág. 123 - 132
Nursery producers grow plants in containers, mainly using substrates based on peat. In order to replace the use of peat, diverse mixtures of substrates combining different proportions of the moss Sphagnum magellanicum Brid. (40, 50 and 60%) and altern...
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