Energy balance of potato growing in ecological, low-input and conventional production system
2006
Žák, Š.,Slovak Centre of Agricultural Research, Nitra (Slovak Republic) | Macák, M.,Slovak Univ. of Agriculture in Nitra (Slovak Republic) | Kováč, K.,Slovak Univ. of Agriculture in Nitra (Slovak Republic)
During 2000-2002 the field trial was established on degraded Chernozem in a maize-barley growing region. The aim of the study was to compare the energy balance of potato growing in ecological, low-input and conventional system for incentive of agro-environmentally friendly agricultural systems. The experimental plots were situated in water-protected zone and doses and types of chemical were used according legislative restriction. The high and acceptable average gross energy production from hectare was obtained in all evaluated growing systems - from 89.86 GJ per ha in ecological system, up to 106.7 GJ per ha in conventional system. The highly significant differences between input of additional energy per hectare into evaluated systems (with average input into ecological system 34.38 GJ per ha, low-input system 38.56 GJ per ha and conventional system 41.11 GJ per ha) were noted. The increase of additional energy (from chemical fertilizers) has no significant influence for gain of energy per weight unit, gain of gross energy per tone of dry matter, gross energy effectiveness, measuring consumption of gross energy and energy efficiency in conventional system with comparison to low-input system and ecological system. Significantly lower input of additional energy into ecological and low-input system of potato growing with comparison to conventional system with simultaneous no significant differences in main characteristics of energy gains of all evaluated systems gave evidence for recommendation of agro-environmental friendly agricultural systems of potato growing in Slovakia.
اظهر المزيد [+] اقل [-]الكلمات المفتاحية الخاصة بالمكنز الزراعي (أجروفوك)
المعلومات البيبليوغرافية
تم تزويد هذا السجل من قبل Technical University in Zvolen