Просмотр собрания по группе - Ключевые слова
- ecological 1
- ecological agriculture 3
- ecological and agronomic components 1
- ecological farming 4
- ecological tourism 1
- ecologization of farming 1
- ecology 20
- econometric analysis 1
- econometric model 2
- econometrics 4
- economic 1
- economic activity in crop production 1
- economic and biological parameters 1
- economic and ecological effect 1
- economic and geographical position 1
- economic and mathematical modeling 2
- economic availability of food 1
- economic behavior 1
- economic conditions of operation 1
- economic developmen 1