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- Title
Effect of tillage methods on oxygen diffusion rate (ODR), power and fuel requirements, some soil physical properties and wheat grain yield.
- Authors
Alamooti, Mohammad Younesi; Hosseini, Morteza Sedaghat
- Abstract
Three types of tillage implement including moldboard plow (conventional tillage), heavy disk (tandem disk harrow) and chisel plow (minimum tillage), is common in Iran and widely used by farmers for plowing and preparing the land for both rain-fed and irrigated wheat production. A lot of chemical and physical properties of the soils are influenced by the type of tillage. Tillage methods are usually evaluated by the amount of oxygen in the soil and distribution of organic matter. On the other hand, using the cropping operations program can significantly affects the amount of oxygen diffusion rate (ODR), fuel consumption and energy efficiency. Prediction of the accurate amount of fuel requirements for tillage operation of the soil is difficult. Therefore, in the current research, the effects of abovementioned tillage methods on the amount of power required, fuel consumption, oxygen diffusion rate and some soil physical properties including bulk density, and organic carbon contents in a randomized complete block design was studied. The results showed that minimum tillage methods increase the amount of organic matter, reduces fuel consumption and needed less power. Highest fuel consumption of 49.6 liters per hectare and the lowest 21.3 liters per hectare, related to the moldboard plow and heavy disk, respectively. The experimental results showed that the highest ODR was recorded at the moldboard plow, (53.6x10-8 g cm-2 min-1) and the lowest (35x10-8 g cm-2 min-1) measured by heavy disk. This value was equal to 42.5x10-8 g cm-2 min-1 for chisel plow. Mean values of soil organic carbon related to the moldboard plow, chisel plow and heavy disk were 0.38, 0.43 and 0.48 percent, respectively. It can be concluded that by considering the land conditions in Iran, the current research findings recommend the use of chisel plow or heavy disk for rainfed or irrigated wheat production.
- Subjects
IRAN; PLOWING (Tillage); TILLAGE; GRAIN yields; ENERGY consumption; WHEAT; SOILS; OXYGEN
- Publication
Agricultural Engineering International: CIGR Journal, 2023, Vol 25, Issue 3, p121
- ISSN
1682-1130
- Publication type
Article