بررسي افزايش عملكرد با بهينه سازي مصرف كود نيتروژن و تلقيح بذر با باكتري در سيستم هاي كشاورزي پايدار در سويا

Maximizing of crop yield with the best revenue of using nitrogen fertilizer and inoculation of seed with bacteria in sustainable agricultural systems in soybean (Glycine max L.)

This experiment was carried out to determine the best time of using nitrogen fertilizer and study the interaction between fertilizer and bacteria in soybean on Williams cultivar. The statistic design in this study was split plot designs with three replications where factor A was fertilizer treatment in five levels and factor B was bacterial treatment in two levels. During growth season characters such as seed yield , pod yield , leaf area index, 100- seed weight and harvest index were measured on ten random plants. The results of the experiment indicated that inoculating the soybeans seeds with bacteria increase the plant growth. Treatments with or without the bacteria showed significant differences. The best fertilizer treatment for seed and fodder production was determined by analysis of variance. The results of this experiment indicated that fertilizer treatments had significant differences with respect to seed and fodder production. The fodder production in the second treatment and seed production in the fourth treatment was higher than the others respective treatment. So it is suggested that for seed production the fourth fertilizer treatment and for fodder production the second fertilizer respective treatment be used.