29
MAR
2016

Energy productivity, fertilization rate and profitability of wheat production after various predecessors II. Profitability of wheat production

Z. Uhr1*, Е. Vasileva2 1Institute of Plant Genetic Resources, 2 Druzhba, 4122 Sadovo, Bulgaria 2University of Agribusiness and Rural Development, 78 Dunav, 4000 Plovdiv, Bulgaria (Manuscript received 27 July 2015; accepted for publication 13 October 2015) Abstract. In the course of ou
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14
MAY
2014

Analysis of energy consumption for artificial lighting of rooms for fattening of pigs

V. Katsarov, K. Peychev Abstract. State aid for the implementation of voluntary commitments for human attitude toward pigs involves providing artificial light for 11 hours a day. This technological approach is associated with a further increase of energy consumption at farms. Therefor
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14
MAY
2014

Feasibility of the use of heat energy from alternative sources for air conditioning in sows facility

K. Peichev, R. Georgiev Abstract. A heat engineering analysis of the heat flows in a typical housing facility for raising lactating sows was made. The results obtained were used to design a conceptual model for air conditioning (cooling) by a thermally powered cyclic process of an abs
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08
MAY
2014

Influence of some growth regulators on energy efficiency of spring pea (Pisum sativum L) cultivated for fresh biomass

For establishing the effect of different growth regulators: Atonic – 0.6 L ha-1. Masterblend – 1.6 kg ha-1 and Confidor 70 VG – 0.15 kg.ha-1 applied alone and in combination in budding; budding + flowering and flowering on the productivity, composition, nutritive val
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