Document Type : Research Paper
Authors
1
Department of Agronomy, Faculty of Agriculture, University of Tarbiat Modares, Tehran, Iran
2
Animal Science Department, Faculty of Agriculture, Tarbiat Modares University, Tehran, Iran
3
Department of Agronomy, Faculty of Agriculture, Tarbiat Modares University, Tehran, Iran
4
Animal Science Department, Faculty of Agriculture, Tarbiat Modares University, Tehran, Iran,
5
Department of Entomology, Faculty of Agriculture, Tarbiat Modares University, Tehran, Iran
Abstract
To evaluate the biomass, physiological traits, and corn-amaranth intercropping advantages in the cultivation of barley residues and different levels of nitrogen, The results showed that the highest total dry weight of amaranth was observed in the treatment of using 80 kg Nha-1 of nitrogen in the conditions of amaranth monoculture and without the use of barley residues with a production of 8031 kg ha-1 and the highest dry weight of corn was obtained from the treatment of corn monoculture in barley residues with the application of 300kg Nha-1. The highest photosynthesis rate of amaranth was observed in the treatments of using 40kg Nha-1 in the conditions of monoculture without using barley residues and not using N fertilizer and using 40kg Nha-1 in the conditions of intercropping with corn and without using barley residues. Also, the results showed that the highest corn photosynthesis rate was achieved with the application of 300 kg N ha-1, Land equivalent ratio (LER) showed an increase of 30% in the intercropping of maize and amaranth in the cultivation of barley residues with the application of 100 kg N ha-1 for maize and 40 kg N ha-1 for amaranth, which indicated the advantage of intercropping. According to the results of this research, if the goal was to produce amaranth, barley residues should not be used, but in maize cultivation, the use of barley residues is recommended. Also, the use of 40 and 300 kg N ha-1 is recommended for amaranth and maize, respectively, to increase biomass.
Keywords
Main Subjects
)