Evaluation of sowing time and intercropping on vegetative and reproductive traits of bean (Phaseolus vulgaris) and biological yield of forage maize (Zea mays)
Intercropping is a beneficial farming system to intensify and sustain farm productivity. In order to evaluate forage production of maize and seed yield of bean in maize/bean (maize var 704 and bean var Goli) intercropping، a field experiment was conducted at Research Farm، Faculty of Agricultural Sciences and Engineering، Tehran University during 2006. Sowing dates of plants with three levels، simultaneous sowing for both plants، 20 day delay in sowing of bean and 20 day delay in sowing of maize were arranged in main plots. The five planting ratios (100/0)، (66. 7/33. 3)، (50/50)، (33. 3/66. 7) and (0/100) were the percentage of bean/maize arranged in subplots. Results showed that the bean seed yield / plant and bean pot number / plant were affected by interaction of sowing date and planting pattern. Delay cropping of bean in maize under planting ratio of 66. 7/33. 3 of bean/maize produced the highest dry weight of maize among intercropping treatment. Pure maize had the highest plant height and produced maximum dry weight /ha. The highest pod number per plant، yield per plant and hectare، and the lowest seed number per pod were observed in pure bean.
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