اثر کود دامی و کشت مخلوط ذرت با لوبیا بر جذب و غلظت عناصر غذایی و عملکرد شاخساره و دانه لوبیا

In order to study the effect of farmyard manure (FYM) application and intercropping of corn (Zea mays L.) and bean (Vicia faba cv. Talash) on the nutrients concentrations and yield of bean seed and foliage, a factorial experiment was carried out based on randomized complete blocks design with three replications on the 2010 growing season at field conditions. The factors were types of cultivation at two levels (sole bean, bean+corn intercropping) and FYM at three levels (0, 30 and 60 tons per hectare). At the end of growth period, bean seed and foliage yield and concentrations of N, P, K, Ca, Mg, Na, Fe, Cu, Mn and Zn were measured. The results showed that the effect of FYM application on the bean foliage yield was not significant, while the bean seed yield was increased by application of 30 and 60 tons FYM per hectare as compared with the control. The bean seed and foliage yield in the sole bean system were significantly greater than the bean+corn intercropping system. The concentrations of N, P, K, Ca, Mg, Na, Fe, Cu, Mn and Zn in bean seed and foliage were significantly increased by increasing the level of FYM. The bean seed and foliage concentrations of N, P, Fe and Mn, the foliage K concentration and the seed Zn concentration in the bean+corn intercropping system were significantly greater than the sole bean system; while the bean seed and foliage concentrations of Ca, Cu, Mg and Na, the foliage Zn concentration and the seed K concentration in the bean+corn intercropping system had no significant difference with the sole bean system. According to improvement of corn and bean plants nutrition and higher biological yield, the intercropping of corn with bean and application of FYM at the rate of 60 tons per hectare can be recommended.