Determination of energy productivity and efficiency in different conservation tillage systems for the production of cotton fiber

Document Type : Research Paper

Authors

1 Systems Engineering Department,Agricultural Faculty, Tabriz University, Tabriz, Iran

2 Professor of Bio-Systems Engineering Department, Agricultural Faculty, Tabriz University, Tabriz, Iran.

3 Assistant Professor of Bio-Systems Engineering Department, Agricultural Faculty, Tabriz University, Tabriz, Iran.

Abstract

This study was conducted in order to determine the Energy productivity and energy efficiency of different methods of conservation tillage in cotton crop in the city of Varamin for two years. Tillage treatments in this study were including, moldboard plow + two passes of disk harrow as conventional tillage (CT), two passes of disk harrow as reduced tillage (RT), one pass of chisel plows pickups as minimum tillage (MT) and no-tillage (NT) as direct drilling method. Tillage treatments were evaluated in a randomized complete block design with three replications.
The statistical results of the study indicated that tillage method significantly (P ≤ 0.05) affected crop yield. The conventional tillage was endowed with maximum cropping yield at hectare (3636/4 kg per hectare). While no tillage with minimum rate (1753/3 kg per hectare. In terms of energy consumption, conventional tillage were endowed with highest value (30473/16 MJ.ha-1) and no tillage treatments with the least amount of 25903/1 MJ.ha-1. The maximum direct consumption of energy was related to irrigation equipment (5850/054 MJ.ha-1). And the maximum indirect energy were related Nitrogen fertilizers (11620 MJ.ha-1). The highest Energy Ratio (ER) was in conventional tillage method (2/36) and the lowest energy efficiency was in no tillage (1/33). Eventually In terms of energy productivity (EP), conventional tillage method were endowed with the highest amount (0/04 kg.MJ-1) and no tillage with the least amount (0/023 kg.MJ-1).

Keywords


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