Document Type : Research Paper
Authors
1
Graduated Ph. D., Department of Plant Production and Genetic Engineering, College of Agriculture, Agricultural Sciences and Natural Resources University of Khuzestan, Mollasani, Iran and Member of Khuzestan Research Institute of Education, Ministry o
2
Department of Plant Production and Genetic Engineering, College of Agriculture, Agricultural Sciences and Natural Resources University of Khuzestan, Mollasani, Iran
3
Retired professor, Department of Plant Production and Genetic Engineering, College of Agriculture, Agricultural Sciences and Natural Resources University of Khuzestan, Mollasani, Iran
4
Associate Professor, Department of Plant Production and Genetic Engineering, College of Agriculture, Agricultural Sciences and Natural Resources University of Khuzestan, Mollasani, Iran
10.22034/saps.2025.68913.3398
Abstract
Background and Objective: This experiment was conducted with the aim of investigating the effect of seed planting method and different ratios of organic and chemical fertilizers on the quantitative and qualitative yield of corn forage under water deficit stress conditions.
Materials and Methods: The experiment was conducted as a split-split plot in a randomized complete block design with three replications in the summer of 2021 at the experimental farm of the Agricultural Technical School of Ramhormoz city. The experimental factors included irrigation regimes at three levels: control irrigation (I1), mild stress (I2), and severe stress (I3) in the main plots; five fertilizer treatments including 100% nitrogen (N1), 75% nitrogen+ 25% compost (N2), 50% nitrogen+ 50% compost (N3), 25% nitrogen+ 75% compost (N4), and 100% compost (N5) in the sub-plots; and two cultivation methods: on-ridge cultivation (P1) and in-furrow cultivation (P2) in the sub-sub-plots.
Results and Discussion: The results indicated that the highest crude protein content, dry matter digestibility, and forage ash percentage across all irrigation levels were obtained from integrated treatments of 50% chemical+ 50% organic fertilizers. However, the 100% chemical treatment consistently yielded the highest water-soluble carbohydrates under all irrigation conditions. The highest ash percentage and total forage protein yield across all irrigation levels were attributed to the in-furrow cultivation method.
Keywords
Main Subjects
)