Lavasani, Ahmad (2013) Evaluation of greenhouse production Systems ecological sustainability at the Sistan using composite indicators. Masters thesis, University of Zabol.
|
Text
Evaluation of greenhouse production.pdf Download (91kB) | Preview |
Abstract
Sustainability of greenhouse production systems at risk due to indiscriminate use of external chemical and low ratio of energy input to energy output. The aim of this study was to compile an index for quantifying the ecological sustainability of greenhouse production system in Sistan. Information about the social and economic indices, greenhouse production, crops and livestock, fertilizer and chemicals, crop residue management, irrigation water, mechanization and plowing, weed management and diversity were collected and analyzed through questionnaire. Average score of sustainability index in greenhouse system is 51.11 and 64.2% of greenhouse owner have earned 40 or less scores. The progressive step by step regression showed that the most important factors determining the sustainability index in the systems were: Crop diversity, diversity of herbicides and fungicides, crop residue management, and access to inputs, respectively. While the use of chemical fertilizers, especially nitrogen had no decisive impact on the sustainability index. The study critical points two system showed that for improving their sustainability, training of farmers, helping them to economic stability, improved crop management and water resource management has a priority.
| Item Type: | Thesis (Masters) |
|---|---|
| Uncontrolled Keywords: | Sustainability quantification, Sustainability index, Greenhouse production systems, Sistan |
| Subjects: | S Agriculture > S Agriculture (General) |
| Depositing User: | admin admin1 admin2 |
| Date Deposited: | 05 Jun 2016 05:14 |
| Last Modified: | 05 Jun 2016 05:14 |
| URI: | http://eprints.uoz.ac.ir/id/eprint/714 |
Actions (login required)
 |
View Item |
