الفهرس | Only 14 pages are availabe for public view |
Abstract The objectives of the present study are1- Study the effect of seedbed preparation systems and planting methods of corn crop in two different soil types on the following points: • Some soil physical properties (bulk density, porosity and void ratio). • Some plant characteristics and total grain yield. • Fuel consumption rate and specific energy requirements. • Production cost. • Net profit. 2- Select the appropriate seedbed preparation system and planting method for corn crop production based on both yield and cost. |